Evaluation and Optimization Simulation of Land Suitability for Village Construction in the Urban Rural Integration Zone - Empirical Test Based on 49 Administrative Villages in Chuzhou City, China

Evaluation and Optimization Simulation of Land Suitability for Village Construction in the Urban Rural Integration Zone - Empirical Test Based on 49 Administrative Villages in Chuzhou City, China | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Evaluation and Optimization Simulation of Land Suitability for Village Construction in the Urban Rural Integration Zone - Empirical Test Based on 49 Administrative Villages in Chuzhou City, China Shuping Fan, Yuntao Zhu, Huimin Guo, Qi Wang, Yishi Mi, Xin Gao, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4994781/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 26 Apr, 2025 Read the published version in Scientific Reports → Version 1 posted 12 You are reading this latest preprint version Abstract Potential endowment and constraint bottom line are the core elements of evaluating the suitability of village construction land. The scientific and reasonable measurement of the suitability degree and its optimization simulation from the quantity, scale and spatial layout are necessary for demarcating the boundary of village construction land and the preparation and implementation of village planning. This study chooses typical combination of urban and rural Chuzhou in Anhui province jurisdiction 49 administrative villages for the research scope, builds a "potential-constraint" model under the framework of village construction land suitability evaluation index system and measures appropriate degree, further optimization simulation and differential control strategy, to guide the village construction land scientific and reasonable layout. The results show that: (1) the village collective income and land use intensity have a great impact on the potential of village construction land, The proportion of permanent basic farmland, the distance from the organized town and the population loss rate have a great impact on the binding force of village construction land; (2) The proportion of suitable, unsuitable and suitable areas of village construction land is 38.63%, 27.56% and 15.60% respectively, The overall distribution pattern of suitability is " high in the east and southwest, South-Northeast Low ", Suitable areas are mainly Xijian Street, unsuitable areas are mainly Shiji Town, In the future, the village construction land will still be mainly expanded by Xijian Street to Shahe Town and Zhulong Town; (3) The eastern high-suitable area adopts the rural urbanization mode and optimizes the layout in a "group" style, The central low suitable area adopts the mode of "teng village and land reduction" and continuously improves the level of intensive land use, In the southwest, it is suitable for villages to form a "central village" layout mode based on location and economic development. Taking the adjustment of the quantity, scale, and spatial layout of village construction land in the urban and rural fringe as the main context and implementing the optimization simulation of village construction land under the mode of "linking man and land together", to provide theoretical exploration and technical support for the overall layout of urban and rural construction land and the delineation and implementation of "three districts and three lines" in village planning. Biological sciences/Ecology/Ecological modelling Biological sciences/Ecology/Ecosystem ecology Biological sciences/Ecology/Ecosystem services village construction land suitability optimization simulation scale prediction urban-rural fringe Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Introduction As China promotes coordinated urban and rural development, village planning has become not only a policy needed to build harmonious villages but also a priority theme for the implementation of the rural revitalization strategy [ 1 ] , Village construction land is an important land type for village planning and has been highly valued by many departments [ 2 ] . Village construction land has become a crucial lever for optimizing the layout of regional construction land. Particularly since the implementation of the urban-rural integration development strategy and the urban-rural land-use linkage policy, China has been steadily advancing the urbanization of agricultural migrant populations, continuously promoting rural land system reforms, and accelerating the construction of integrated urban-rural infrastructure. These efforts have played an active role in regulating the scale of urban and rural construction land and optimizing its spatial layout [ 3 – 5 ] . However, as an important place for villagers to produce and live, the village construction land has long had prominent problems such as lack of planning and layout guidance and chaos of land reduction and increase [ 6 ] , The coexistence of idle waste and disorderly expansion of village construction land is more serious, which may further restrict the modernization of urban and rural space governance [ 7 ] . With the continuous progress of village construction land renovation, the renovation potential and its difficulty will continue to increase, and there may also be many problems, such as re-occupation of reclaimed land, abandoned land and "secondary hollowing out" of new resettlement communities [ 8 – 9 ] . Adhering to the rural revitalization strategy and the context of economical and intensive land use, the suitability evaluation and optimization simulation of village construction land is helpful to accelerate the overall layout of construction land, improve the living environment and improve the economical and intensive use of land use. Ensuring the scientific layout and rational utilization of village construction land has attracted more and more attention from political circles, public and academic circles. From the perspective of international research, studies on the spatial distribution characteristics and optimization of rural construction land began relatively early. These studies primarily focus on rural areas outside urban districts, which can serve as reserve support areas for cities [ 10 ] . By employing spatial reconstruction methods and developing multi-objective models, these approaches effectively address the scattered and disordered nature of current spatial layouts, enabling the optimization and adjustment of regional land structures and quantities [ 11 – 13 ] . Moreover, they provide a buffer against issues such as urban congestion caused by urban development and population growth [ 14 ] . Considering that land-use layouts are influenced by various factors, including the ecological environment and social development, it is essential to designate specific protected areas [ 15 ] . From the domestic research, many scholars in China, when studying village construction land, primarily focus on rural residential land. This is typically defined as areas concentrated on the living and working activities of villagers, encompassing land for homesteads, transportation infrastructure, and industrial facilities. The village construction land, as an important potential space for the improvement of the utilization efficiency of natural resources in China, is focused on the appropriate evaluation of the village construction land [ 16 ] , Scale forecast [ 17 – 18 ] Optimize the layout [ 19 – 20 ] Rectify potential [ 21 – 22 ] In other studies, the differential control strategy of village construction land is proposed to achieve the goal of improving land use efficiency. The research scale is mostly village level or plot units, and the study area is mountainous and hilly areas [ 19 ] , ecologically vulnerable area [ 6 , 16 ] The surrounding area of the town [ 7 , 22 ] The research method is mainly quantitative analysis and supplemented by qualitative, and many research results have been widely used. Throughout the current research trends, there are more construction land or rural residential land [ 23 – 24 ] , while research specifically targeting village construction land remains relatively rare. At present, no relatively unified and comprehensive standards for evaluating the suitability of village construction land have been established domestically or internationally. Moreover, optimization simulation studies considering the human-land linkage are scarce [ 25 – 26 ] , and there is a notable lack of systematic evaluation frameworks and methodologies.The development and utilization of land in the urban-rural fringe has become the key and difficult problems in the rapid social and economic development areas that need to be paid special attention to and solved in the next step [ 27 ] Especially in the new type, driven by the urbanization process, a large number of rural population flows into cities and towns, the use of village construction land is relatively extensive, and the rural homestead is idle or abandoned for a long time. It is very important and urgent to study how to better optimize the simulation and strategic supply according to the suitability characteristics of village construction land. Based on this, this study selects the typical urban-rural integration in Anhui province Chuzhou city jurisdiction 49 administrative villages for the research scope, build "potential-constraint" model under the framework of village construction land suitability evaluation index system and measure appropriate degree, further optimization simulation and differential control strategy, for similar regional village construction land strategy supply, provide theoretical basis and technical support. 1. Overview of the study area and study methods 1.1. Overview of the study area The jurisdiction of Chuzhou is located in the east of Anhui Province and the southeast of Chuzhou, with Guangming City in the north, Dingyuan County in the west, Quanjiao County in the south, Lai'an County and Liuhe District in the east and close to the downtown area of Nanjing. It is located in the central urban area of Nanjing metropolitan area and is also one of the major cities in the integrated development of the Yangtze River Delta (Figure 1). The traffic in this region extends in all directions, Beijing-Shanghai railway, Beijing-Shanghai high-speed railway through the border, Chu-Huai expressway from west to east, Chu-mayang expressway from south to north through the national road 104 and Ningluo high-speed intersection, 18 minutes to reach Nanjing downtown area, drive 90 minutes to Nanjing Lukou Airport, Shanghai downtown area. Research area is located in the edge of Chuzhou city area, both the spread of urban elements, and the need to a certain extent to retain the original land pattern, and urban construction land expansion and cultivated land protection, village construction land has diversity and complexity, can be used as a typical representative of the study of urban and rural integration area. Construction land in the study area was 3864.13 hm 2 Among them, the village construction land reached 2,794.39 hm 2 , Accounting for more than 70% of the construction land, and it is urgent to optimize the utilization of village construction land under the situation of urban and rural development. 1.2. Construction of evaluation index system and weight determination Comprehensive reference to related studies [24-26] , Impact village construction land suitable degree involving natural endowment, social economy, ecological environment, system combing natural geography (N), location traffic (L), social economy (S), ecological environment (E) four dimensions, considering the village construction land direction, further summarized as potential factor and constraint factor (table 1). (1) Potential factor Potential factor refers to promoting the village construction and development, and selects the density of river network (N 3 ), Road network density (L 3 ), density of population (S 1 ), per capita net income (S 2 ), Village collective income (S 4 ) And land-use intensity (E 1 ) As a potential factor. River is not only an important source of drinking water for villagers, but also an important guarantee for the development of agricultural activities. The transportation function of river plays an important role in improving the transportation system of some villages and promoting economic and social development. The location and quantity of roads are more oriented to the village development, and the more convenient the traffic, the higher the appropriate degree of construction land. Due to the scarcity of resources in these areas, the relationship between people and land is often more tense, and the village construction land will be preferred to expand to the areas with higher population density. The economic level of the village reflects the appropriate level of the village construction land to some extent, and the per capita net income is the basic embodiment of the villagers' income, which directly reflects the wealth of the villagers. The per capita net income is high, the natural, social and economic attributes are better, and the suitable living conditions are generally high. The village collective income reflects the overall economic situation of the village, is an important comprehensive index of the level of rural economic development, and reflects the overall suitability of the village. Land resources are the basis for the survival of villages. In line with the principle of protecting agricultural land, the development of village construction land should optimize the unused land and industrial and mining land, and avoid the occupation of cultivated land as far as possible. (2) The constraint factor The constraint factor refers to the factors that hinder the village development of construction land due to the special nature of the factor itself. The larger the score, the more unfavorable the village construction land, and the elevation is selected (N 1 ), falling gradient (N 2 ), Distance from the organized town (L 1 ), Distance from the city center (L 2 ), Population turnover rate (S 3 ), Vegetation coverage rate (E 1 ), The proportion of permanent basic farmland (E 3 ) As a constraint factor. Elevation has a limiting effect on the development and construction, which can directly show the regional landform conditions, and the relative height difference determines the direction and resistance of the object. The larger the slope, the worse the regional geological stability, the possibility of geological disasters is higher, and the engineering technical requirements are also higher. The city center and towns have relatively complete infrastructure and industrial and commercial facilities, and the village development has a strong radiation and driving role, and vice versa. The appropriate population size is the premise of village construction and development. The population loss rate reflects the degree of hollowing out of the population in the region. The higher the population loss rate, the higher the hollowing out of the village, the more abnormal the phenomenon of the "man-land link", and the lower the appropriate level affected by the social and economic level. Vegetation diversity is an important guarantee to maintain ecological diversity. The higher the vegetation coverage rate, the greater the ecological suitability, and the lower the village construction conditions. Due to the restriction of cultivated land protection policy, the scope of basic farmland protection area is not suitable for construction land, and the construction and development are strictly restricted in the protection area, and the existing construction land should be gradually withdrawn. Table 1 Evaluation index system and factor description of the suitability of village construction land Target layer Factor layer Factor layer Factor category Data source and processing instructions Evaluation of the suitability of the village construction land Natural geographic factors ( N ) altitude ( N 1 ） Constraints DEM draw falling gradient ( N 2 ） Constraints DEM draw river density ( N 3 ） Potential factor River length / total area of area Location-traffic Factor ( L ) Distance from the organized town ( L 1 ） Constraints Neighborhood analysis-neighborhood tables Distance from the city center ( L 2 ） Constraints Neighborhood analysis-neighborhood tables Road network density ( L 3 ） Potential factor Neighborhood analysis-neighborhood tables Socioeconomic factors ( S ) density of population ( S 1 ） Potential factor Permanent population / total area income per head ( S 2 ） Potential factor Field investigation and village research and collection Population turnover rate ( S 3 ） Constraints Permanent resident population / registered population Village collective income ( S 4 ） Potential factor Field investigation and village research and collection Eco-environmental factors ( E ) Vegetation coverage rate ( E 1 ） Constraints DEM draw Land-use intensity ( E 2 ） Potential factor Construction land area / total area area Proportion of permanent prime farmland ( E 3 ） Constraints Area of permanent prime farmland / total area (3) Value assignment and weight of evaluation factor classification Due to the different measures of evaluation factors and different evaluation units, direct quantitative analysis cannot be carried out. The study will conduct quantitative grading on the basis of qualitative analysis to ensure that all evaluation factors in the evaluation units follow the quantitative standards and are comparable and computable. Elevation and slope reference China landform division standard, distance from the town, from the city center reference urban land classification and planning construction land classification standard, road network density and river network density reference of Chuzhou city overall planning (2012-2030), permanent basic farmland reference Chuzhou national spatial planning "three line" designated results, all index reference part industry standard after unified natural breakpoint method of the evaluation factor grade into 4, corresponding value score is 100,75,50,25, the higher the score represents the higher appropriate degree (Table 2). Weighting is used to describe the relative importance of a single index or factor in the overall evaluation. According to the principle of scientific, reasonable, simple and easy to operate, the CRITIC weight method is selected as the method to determine the weight of each factor. Table 2 Classification and quantification of the suitability evaluation indicators of village construction land factor of evaluation Evaluation factor Index quantification and score value Weight one-level two-level three-level four-level Natural geographic factors ( N ) Altitude ( N 1 ） 131.00-84.46 84.46-61.22 61.22-35.50 35.50-0.00 0.0732 Falling gradient ( N 2 ） 8.64-4.45 4.45-3.23 3.23-2.40 2.40-0.00 0.0490 River density ( N 3 ） 0.08-0.04 0.04-0.02 0.02-0.01 0.01-0.00 0.0901 Location-based Traffic Factor ( L ) Distance from the organized town ( L 1 ） 0.00-3.06 3.06-4.85 4.85-7.11 7.11-9.36 0.1626 Distance from the city center ( L 2 ） 0.00-14.68 14.68-22.75 22.75-30.53 30.53-43.77 0.1329 Density of road network ( L 3 ） 0.04-0.03 0.03-0.02 0.02-0.01 0.01-0.00 0.1719 Socioeconomic factors ( S ) Density of population ( S 1 ） 0.30-0.20 0.20-0.15 0.15-0.10 0.10-0.00 0.0933 Per capita net income ( S 2 ） 20532-18232 18231-16384 16383-14722 14721-10000 0.1957 Population turnover rate ( S 3 ） 0.87-0.73 0.73-0.53 0.53-0.15 0.15-0.00 0.2620 Village collective income ( S 4 ） 278930-236501 236500-184501 184500-136001 136000-100000 0.2221 Eco-environmental factors ( E ) Vegetational cover ( E 1 ） 0.86-0.74 0.74-0.67 0.67-0.58 0.58-0.00 0.1043 Land-use intensity ( E 2 ） 0.50-0.09 0.09-0.06 0.06-0.04 0.04-0.00 0.2269 The proportion of permanent prime farmland ( E 3 ） 0.67-0.56 0.56-0.41 0.41-0.13 0.13-0.00 0.2160 1.3. Potential- -the constraint model construction Considering the expansion potential of village construction land and natural ecological constraints, the "potential-constraint" evaluation model is constructed to show the suitability degree of village construction land by the difference between potential factor and constraint factor. The model calculation formula is provided as described in： Where: E is the suitability level of village construction land, n is the total number of suitability potential or constraint factors, W ai For the potential factor weight, F ai For the potential factor suitability, W bi For the constraint factor weight, F bi Is the constraint factor suitability. The natural breakpoint method is adopted, and the whole study area is divided into four categories: suitable construction, more suitable construction, generally suitable construction and unsuitable construction. 1.4. Data source and processing Combined with the achievements of "three districts and three lines" in Chuzhou, Excluding the urban development boundary of Chuzhou city, Using the remaining area as the study area, Involving 49 administrative villages; Natural geographic data, Elevation, slope, river network density and vegetation coverage are derived from the geospatial data cloud website downloaded with 12.5m resolution DEM data extraction; Location and traffic conditions, The distance from the city center, the organized town and the road network density are derived from the land survey data and the vector data of the Overall City Plan of Chuzhou (2012-2030), Provided by the nature, housing and construction departments of Chuzhou city; socioeconomic data, Population data and income data are derived from the township survey data of the overall territorial space planning of Chuzhou, Take the on-site data collection method to obtain; The level of urbanization comes from the statistical Yearbook of Chuzhou, By the website of Chuzhou Bureau of Statistics; Land use intensity and the proportion of permanent basic farmland are derived from the land survey data. 2. Analysis of the suitability evaluation results of village construction land 2.1. Potential analysis The potential value of the construction land of unit villages is calculated, and the greater the potential value and the higher the potential level. The natural breakpoint method was adopted to divide the potential level of village construction land into four types, and the potential spatial classification map of village construction land was exported combined with the potential value (Figure 2). The village construction land in the study area is mainly the three-level potential, A total of 19 evaluation units, For 38.62% of the total area, Found mainly in the north and northeast, In southern areas, The population density of this region is more overall than that of other regions; Four by four potential zones, The 11 evaluation units, For 27.56% of the total area, Mainly in the south and in the northeast, The area is close to the city, Per capita net income is relatively high, More construction land development in some areas, High land-use intensity; There are nine evaluation units in the secondary potential units, Mainly distributed in the southwest region, Small distribution in the eastern region, Involving the removal and merger of more rural settlements, Strong demand for land for developing village construction, And is driven by township enterprises, The village collective income and per capita net income are considerable; The least potential level area, Accounted for 15.60%, In the urban area, The area is the closest to the downtown location, The urban distribution is relatively concentrated, Driven by the regional social and economic development, the development of the surrounding construction land is early and relatively perfect (Table 3). Table 3 Summary table of the suitability potential of village construction land Rank Evaluation Unit / Individual Area /hm2 Area Ratio /% Involved in the village one-level 10 105.84 15.60% Chengxi , Xinji , Shima , Qiutong , Huqiao , Guanshan , Lugang , Dengba , Sanguan , Shanlin two-level 9 123.47 18.21% Changshan , Huji , Taipingji , Yuansong , Huangfu , Yawo , Machang , Mengwa , Zhangguang three-level 19 261.98 38.63% Jingnan , Guangshan , Tangzhuang , Huashan , Zhuying , Zhulong , Hengtang , Chenwang , Xingzhu , Youfang , Erlang , Beiguan , Baimi , Guantang , Guangwei , Quting , Muzhuang , Huayanan , Caowang four-level 11 186.93 27.56% Yangfan , Fengshan , Mingzhang , Liji , Hedong , Rongyao , Sungang , Longpan , Wanying , Dalin , Zhangbuying 2.2. Constraint analysis The binding value of village construction land is calculated by superposition the constraints of the study area. The larger the binding value, the higher the constraint level. The binding level of village construction land is divided into four levels, and the binding spatial classification map of village construction land is generated combined with the distribution of binding value. The study area is dominated by the secondary and tertiary constraint areas, which account for 56.72% of the study area, among which, the secondary constraint area covers 13 evaluation units with an area of 197.76 hm 2 , 29.16%; the area of tertiary restraint area is 186.97 hm 2 , Accounting for 27.56%, involving a total of 15 evaluation units, the first-level constraint area is relatively low, 22.34%, the area of 151.50 hm 2 , 11 evaluation units; the minimum proportion of restraint 4 is 20.94% and 10 evaluation units (Table 4). From the perspective of the spatial distribution, The overall distribution of the first-level constraint regions is less, Concentrated in the southwest region, A small and sporadic distribution in the northeast, The area is far away from the downtown area, The radiation driving effect is relatively weak, The population turnover rate is more serious, Some rural settlements, "hollow houses, hollow villages" phenomenon is more serious, The area involves larger areas of permanent prime farmland, The development of village construction land is strictly restricted; The secondary and tertiary constraints are distributed in the "northeast-southwest" band in the middle of the study area, The secondary restraint area is mainly mountainous terrain, Abundant in forest resources, High vegetation coverage rate, Good ecological environment, In the northwest area of the municipal district and far away from the city center; The southern area of the third-level restraint area is greatly affected by the terrain, High average elevation, high slope, High engineering construction technology and cost requirements; The four-level restraint zone is concentrated in the east and southeast, The area is mainly influenced by topographic and ecological factors, With a high terrain slope, High vegetation coverage rate, The population turnover rate is high in the southeast region (Figure 3). Table 4 Summary of the suitability constraints of village construction land Rank Evaluation Unit / Individual Area /hm 2 Area Ratio /% Involved in the village one-level 11 151.50 22.34% Changshan , Huayanan , Lugang , Zhangbuying , Huangfu , Taipingji , Zhangguang , Machang , Huji , Mengwa , Yuansong two -level 13 197.76 29.16% Chenwang , Muzhuang , Caowang , Tangzhuang , Guangwei , Liji , Wanying , Dalin , Quting , Guangshan , Yawo , Hengtang , Zhuying three-level 15 186.97 27.56% Huqiao , Baimi , Xinji , Sanguan, Yangfan , Dengba , Beiguan , Guantang , Qiutong , Sungang , Zhulong , Jingnan , Xingzhu , Youfang , Mingzhang four-level 10 141.99 20.94% Longpan , Erlang , Chengxi , Hedong , Shima , Huashan , Guanshan , Rongyao , Shanlin , Fengshan 2.3. Suitability analysis According to the model of "potential-constraint", the suitability of village construction land is computed, and the suitability level of village construction land is divided into 4 levels (Figure 4, Table 5 and Table 6). The general suitable area is the largest area, with a total of 19 evaluation units, accounting for 38.63% of the total area, mainly distributed in the northern and northeast regions. The natural and social and economic conditions of this kind of land have not yet reached the conditions of development and utilization, so it can only be appropriately developed and utilized under scientific guidance. Suitable area land resources suitability level, the village construction land potential and minimum binding, the most suitable large-scale agglomeration development, is the preferred area of village construction land site, mainly distributed in the east of the research area, southwest have scattered distribution, through the analysis of the superposition of the selection index, accounting for 15.60% of the total area, can meet the urban social and economic development demand for village construction land, will not cause more serious land conflict. The more suitable area accounts for 18.21%, which is concentrated in the southwest area of the research area. Although the suitable level of such land resources is lower than that of the suitable area, it can be used as a good reserve area of the suitable area. In the future, with the social and economic development, the land resources will be preferentially expanded as a suitable area. The unsuitable area accounts for 27.56%, mainly distributed in the south and east of the study area, and production and construction activities should be avoided as far as possible. With few main traffic lines, weak influence of infrastructure, large population migration, low population density and high turnover rate, it is recommended to carry out environmental protection and ecological restoration projects. Table 5 Summary table of the suitability of village construction land Administrative Village Score of Suitability Suitable Grade Administrative Village Score of Suitability Suitable Grade Shanlin 65050.07 Suitable Beiguan 39033.23 Generally suitable Sanguan 64824.71 Suitable Baimi 39003.64 Generally suitable Dengba 62708.01 Suitable Erlang 38996.33 Generally suitable Lugang 61377.61 Suitable Youfang 38591.76 Generally suitable Guanshan 60724.13 Suitable Xingzhu 38491.44 Generally suitable Qiutong\ 60110.59 Suitable Chenwang 38450.10 Generally suitable Huqiao 60082.45 Suitable Hengtang 37860.14 Generally suitable Shima 60047.40 Suitable Zhulong 36290.16 Generally suitable Xinji 58815.77 Suitable Zhuying 35924.91 Generally suitable Chengxi 58326.57 Suitable Huashan 35482.82 Generally suitable Zhangguang 55940.99 More suitable Tangzhuang 35287.24 Generally suitable Mengwa 55215.07 More suitable Guangshan 35204.76 Generally suitable Machang 54683.38 More suitable Jingnan 35018.80 Generally suitable Yawo 53190.08 More suitable Zhangbuying 33974.78 Not suitable Huangfu 52522.78 More suitable Dalin 33149.16 Not suitable Yuansong 51411.61 More suitable Longpan 32363.41 Not suitable Taipingji 51313.33 More suitable Wanying 32329.78 Not suitable Huji 49768.31 More suitable Sungang 32024.70 Not suitable Changshan 47316.08 More suitable Rongyao 31719.63 Not suitable Caowang 43958.85 Generally suitable Hedong 31517.24 Not suitable Huayanan 41450.42 Generally suitable Liji 31153.39 Not suitable Muzhuang 41110.63 Generally suitable Mingzhang 28842.35 Not suitable Quting 40711.07 Generally suitable Fengshan 28573.24 Not suitable Guangwei 40202.84 Generally suitable Yangfan 25529.07 Not suitable GuanTang 39701.70 Generally suitable Table 6 Summary table of the suitability level of village construction land Rank Evaluation Unit / Individual Area /hm 2 Area Ratio /% Suitable area 10 105.84 15.60% More suitable area 9 123.47 18.21% Generally suitable area 19 261.98 38.63% Not suitable area 11 186.93 27.56% 3. Optimization simulation study of village construction land 3.1. Optimization concept of village construction land (1) Optimize the layout of village construction land under the background of "multi-plan integration" The optimization of the layout of village construction land should start from the whole and consider the key points and differences of various planning [27] . National spatial planning emphasizes the spatial layout, development goals and hierarchical structure, optimizing the layout of village construction land according to the functional areas set in the planning; industrial planning guides the social and economic benefits, emphasizes the overall layout of the structure and layout of three industries to ensure the demand for construction land for various development; ecological planning and basic farmland planning focus on the protection of the quality and quantity of non-construction land, and the location of village construction land should avoid permanent basic farmland and ecological protection areas. All the planning focus on the same region, there are cross and coordinated parts, to build a unified planning target system. According to the background of "multi-plan integration", we should coordinate the spatial layout and quantity and scale of all kinds of planned land, give priority to the protection of permanent basic farmland and ecological areas, and take the village development as the core, and gradually realize the layout optimization. (2) Adjustment of village construction land layout under the guidance of planning indicators The influence of national strategy, policy guidelines and planning indicators plays an important role in village construction and development, and the influence of the above factors on the scale layout of village construction land should be actively considered [28] . Chuzhou has always been taking high-quality development as the theme, taking the urban area as the center to drive the surrounding areas, and fully promoting the regional comprehensive development, putting forward the construction of the "Great Jiangbei coordinated development area" at a high level, and building a pilot area and demonstration area to promote the integrated development of the Yangtze River Delta. Based on the overall pattern of regional coordinated development, the overall urban development pattern of "one main and four auxiliary" with the main urban area of Chuzhou, among which the main urban area radiates to Waopu Town, Shahe Town, Wuyi Town and other areas. The planning indicators should be scientifically determined, emphasizing the formation of intensive and compact urban spatial pattern, and the comprehensive scale of land will be controlled by the urban area with the focus to the south. In the future, the development of village construction land will be centered on Jianxi Street, close to the urban area, focusing on the surrounding Shahe Town, Waopu Town and Zhulong Town. 3.2. Forecast of village construction land scale (1) Forecast of the village's permanent resident population The internal change law of village construction land expansion is not random, and the standard scale method is used to predict the future village construction land scale in the research area. Taking the permanent population as the base data, the comprehensive growth rate method is used to predict the permanent population size. The calculation formula is: In formula: P t Predict the total population number for the future, P 0 For the base period of the total population, m for the comprehensive growth rate (the sum of natural and mechanical growth rate), n for forecast fixed number of year, considering the Chuzhou is located in Nanjing metropolitan circle, Yangzhou economic circle and countries vigorously promote the county new urbanization development strategy (figure 5), the future resident population gradually to the urban or urban areas, comprehensive determine study population growth of 4.94 ‰, into the formula to determine the population size in 2035 (table 7). Table 7 Summary table of the resident population size prediction in the study area administrative village Status of the year Forecast year administrative village Status of the year Forecast year administrative village Status of the year Forecast year Baimi 2790 2629 Guantang 1662 1566 Quting 3230 3044 Youfang 1772 1670 Guangwei 896 844 Erlang 1009 951 Changshan 321 302 Muzhuang 1225 1154 Dalin 628 592 Huji 530 499 Xingzhu 659 621 Fengshan 657 619 Huangfu 296 279 Zhulong 952 897 Hedong 380 358 Lugang 328 309 Hengtang 1364 1285 Huashan 797 751 Huayanan 1231 1160 Chengxi 2534 2388 Jingnan 1051 990 Mengwa 612 577 Huqiao 901 849 LiJi 1465 1380 Taipingji 512 482 Wanying 845 796 Longpan 1514 1427 Yawo 733 691 Xinji 748 705 Mingzhang 845 796 Yuansong 722 680 Qiutong 1131 1066 Rongyao 907 855 Zhangguang 376 354 Dengba 1225 1154 Sungang 1433 1350 Guangshan 397 374 Tangzhuang 720 678 Yangfan 781 736 Sanguan 1852 1745 Beiguan 1014 955 Caowang 678 639 Zhangbuying 1114 1050 Guanshan 1945 1833 Shima 3794 3575 Zhuying 673 634 Shanlin 1414 1332 gather 55278 52088 Chenwang 604 569 Machang 516 486 (2) Simulation of village construction land use Considering the large overall population density and high urbanization level in the study area, and the high requirements for the intensive use of village construction land, the standard of per capita village construction land in the study area is determined according to the per capita construction land standard and the prediction of population size 2 . According to the per capita quota method, the total scale of village construction land in the study area in 2035 is 729.23 hm 2 (Table 8). Table 8 Current situation of village construction land and forecast of future scale in 2035 Administrative Village Suitable Grade Status quo Value / hm 2 Predicted Value /hm 2 Administrative Village Suitable Grade Status quo Value / hm 2 Predicted Value /hm 2 Shanlin Suitable 47.94 18.65 Huji Generally suitable 56.83 6.99 Sanguan Suitable 30.29 24.43 Yuansong Generally suitable 49.13 9.52 Shima Suitable 75.14 50.05 Xingzhu Generally suitable 44.17 8.69 Guanshan Suitable 51.57 25.66 Youfang Generally suitable 161.12 23.38 Chengxi Suitable 71.45 33.43 Guangwei Generally suitable 69.02 11.82 Dengba Suitable 44.72 16.16 Hedong Generally suitable 36.81 5.01 Huqiao Suitable 18.62 11.89 Chenwang Generally suitable 33.23 7.97 Xinji Suitable 44.35 9.87 Quting Generally suitable 102.02 42.61 Qiutong Suitable 50.01 14.92 Zhulong Generally suitable 21.23 12.56 Lugang More suitable 36.90 4.33 Rongyao Generally suitable 65.40 11.97 Yawo More suitable 66.19 9.67 Jingnan Generally suitable 55.23 13.86 Zhangguang More suitable 53.65 4.96 Huayanan Generally suitable 36.02 16.24 Erlang More suitable 47.02 13.31 Tangzhuang Not suitable 34.07 9.50 Machang More suitable 46.83 6.81 Sungang Not suitable 69.58 18.90 Mengwa More suitable 40.16 8.07 Hengtang Not suitable 44.22 17.99 Huangfu More suitable 31.77 3.90 Fengshan Not suitable 62.98 8.67 Baimi More suitable 102.32 36.81 Zhuying Not suitable 49.36 8.88 Caowang More suitable 39.41 8.94 Guangshan Not suitable 25.64 5.24 Taipingji More suitable 57.25 6.75 Wanying Not suitable 38.30 11.15 Guantang Generally suitable 83.26 21.93 Dalin Not suitable 46.14 8.28 Beiguan Generally suitable 58.06 13.38 Liji Not suitable 78.69 19.33 Changshan Generally suitable 48.32 4.23 Mingzhang Not suitable 58.84 11.15 Huashan Generally suitable 99.26 10.51 Yangfan Not suitable 76.72 10.30 Muzhuang Generally suitable 22.80 16.16 Zhangbuying Not suitable 89.24 14.70 Longpan Generally suitable 98.31 19.97 gather —— 2794.39 729.23 3.3. Optimization of village construction land and zoning It is of great significance to make good village construction planning and reasonable layout of village construction land to promote the renovation of village construction land under the jurisdiction of Chuzhou and enhance the intensive use of land, and to fully release the ecological, social and economic value of land resources. Based on the suitability evaluation of village construction land in the research area, considering the topographic and landform characteristics, and combining with the demand of future village construction land, the village construction land pattern is optimized and guided, which is specifically divided into the high suitable group development area in the east, the low suitable village contraction area in the middle, and the suitable central agglomeration area in the southwest (Figure 6). (1) Eastern high suitable group development area Eastern high suitable area is given priority to with plain terrain, flat open, is the key towns of Chuzhou, is also the main direction of urban group and urban construction land expansion, the overall transportation is convenient, location is superior, village construction land scale, density and covers an area of proportion are larger, village construction land suitability level is high, to promote the village construction land layout optimization. The nearby urbanization mode is adopted for optimization, mainly relying on the traffic lines formed by the existing urban system as the nodes, forming Dengba, Chengxi, Huashan and Huqiao as the core, and the surrounding villages as the radiation range. Located in the urban network node and the surrounding villages, the basic conditions are good, the population density is large and relatively concentrated, driven by the location factors, it develops well and has a strong trend of new urbanization. (2) Central low suitable shrinking village and land area The central region is mainly mountainous, with high terrain, relatively large drop and lack of gentle area. It is the location of natural scenic area, ecological protection area and water conservation area under the jurisdiction of Chuzhou. For example, Huangfu Mountain National Forest Park and Shahe Reservoir are located in this area, which is also the main area of ecological farmland in Chuzhou. The layout of village construction land in this area is scattered, the scale is relatively small, the endogenous force of economic development is relatively weak, the location and traffic conditions are poor, the ecological environment is fragile, and the overall suitability degree of village construction land is relatively low. Based on the mode of "village teng and land reduction", the villages that are not suitable for living and development are concentrated into communities with a certain scale and good natural economic conditions. This model emphasizes the optimization of relatively large-scale villages, strengthens the comprehensive improvement of the whole land, and uses the idle construction land of the villages to gradually integrate the scattered small natural villages, so as to expand the high-quality cultivated land resources. With Zhulong, Xingzhu and Liji as the radiation center, the areas with low construction land suitability in other villages gradually "reduce land reduction", to vacate the land for village construction through reclamation and effectively improve the reserve of cultivated land resources. (3) Southwest Moderately suitable central agglomeration area In southwest region, hilly terrain is mainly used, the land is mainly agricultural use, and the suitability level of village construction land is mainly suitable. The location conditions, population density, and economic foundation are weaker than those in the eastern plain area, thus restricting the development of village construction land. Southwest hilly areas to take "central village construction" mode optimization village construction layout, choose location conditions and economic development conditions good village as the center, gathered with a certain scale and the surrounding area of the village, through the infrastructure and life service facilities construction, improve foreign traffic conditions, the traffic block villages to convenient transportation village concentration, smaller villages to larger villages, economically backward villages to economically developed villages, optimize southwest hilly area village construction land layout. 4. Conclusions and Discussion 4.1. Conclusion Taking 49 villages under the jurisdiction of Chuzhou city, Anhui Province as the research area, the evaluation index system of suitability of village construction land was constructed, the suitability of village construction land in the research area was evaluated through the model of "potential-constraint", and the research on village construction land optimization concept, scale prediction and simulation zoning were further carried out. The conclusions are as follows: (1) explore the factors affecting the suitability of village construction land from the two dimensions of potential and binding force, the potential factor dimension, the village collective income and land use intensity most strongly affect the suitability of village construction land, indicating that the population factor plays an important role in the suitability of village construction land; from the binding factor dimension, the proportion of permanent basic farmland, the distance from the organized town and the population turnover rate affect the most, indicating that the protection of cultivated land puts forward strict requirements for the development of construction land, and the economic development and sufficient population are an important driving force for the expansion of village construction land.(2) The village construction land in the study area is mainly in the general suitable area, accounting for 38.63%, with an area of 261.98 hm 2 ; The unsuitable area is 186.93 hm 2 , Accounting for 27.56% of the whole area; the suitable area is 105.84 hm 2 , Accounting for 15.60%, which can guarantee the demand of social and economic development for land for village construction, and the relationship between people and land will be in a harmonious state. The overall suitability distribution pattern of village construction land is "high in the east and southwest, and low in the south and northeast". The suitable areas are mainly Xijian Street, while the unsuitable areas are mainly Shiji Town. In the future, the village construction land will still be mainly expanded by Xijian Street to Shahe Town and Zhulong Town.(3) Optimize the village construction land pattern according to "optimization concept- -scale prediction- -simulated zoning"; optimize the layout of the villages in the central cluster area and economic development conditions. 4.2. Discussion At present, the research on construction land focuses on the suitability evaluation, conservation and intensive evaluation, and remediation potential, and has relatively few studies on the suitability evaluation and optimization simulation of village construction land. In this study, 49 villages in the jurisdiction of Chuzhou city, Anhui Province, a typical urban-rural fringe area, were selected to study the optimization of village construction land pattern, verify the rationality and scientificity of this study, and the number and scale of village construction land [13-14] Pattern optimization [15,23] And control strategy [1,3] And other related existing research, as well as the coordination of urban and rural construction land and other aspects of further deepening research [29-30] At the same time, it is of great significance to the development of village planning practice in the new period. At the same time, the village construction land suitability evaluation index system construction mainly in natural conditions, traffic location, social and economic indicators is given priority to, for rural local culture, villagers behavior will, regional development planning policy implementation consider less, and according to different areas to build suitable for village construction land suitability evaluation index system to continue to deepen research. To sum up, the field should focus on the next research, from the solid theory level, the village's actual development as the guidance, considering the policy system, ecological environment, economic development, the villagers will, local culture and other factors, strengthen the construction of village land theory research, for the village national spatial planning practice work to provide more reasonable plan; From the level of research scale, we try to explore the specific research points of village construction land, such as basic investigation, comprehensive evaluation, planning, layout and utilization, renovation and dynamic supervision of village construction land, from the perspective of different village construction land types and the subject of villagers and plot spots. Declarations Author Contributions: Conceptualization, Y.M.(Yishi Mi) and S.F.(Shuping Fan); Data curation, X.G.(Xin Gao), Y.Z.(Yuntao Zhu) and Q.W.(Qi Wang); Formal analysis, S.F.(Shuping Fan) and Y.M.(Yishi Mi); Investigation, Y.M.(Yishi Mi), Y.L.(Yangbing Liu) and Q.W.(Qi Wang); Methodology, S.F.(Shuping Fan) and Y.M.(Yishi Mi); Project administration, Q.W.(Qi Wang), Y.L.(Yangbing Liu) and Z.S.(Zihao Su); Resources, Z.S.(Zihao Su); Software, Y.M.(Yishi Mi), X.G.(Xin Gao) and Y.Z.(Yuntao Zhu); Validation, S.F.(Shuping Fan); Writing—original draft, Y.M.(Yishi Mi).; Writing—review & editing, S.F.(Shuping Fan). All authors have read and agreed to the published version of the manuscript. Funding: This research is supported by General Project of National Natural Science Foundation of China, grant number 71873003. Research Project of Social Science Innovation and Development of Anhui Province, grant number 2023CX523. Natural Resources Technology Project of Anhui Province, grant number 2024-KZ-5, Philosophy and Social Science Fund for Prosperity and Development of Anhui Agricultural University, grant number 2018zs12zd. Introduction and Stable Talent Project of Anhui Agricultural University, grant number yj2018-60. General Land Space Plan of Chuzhou City, grant number 2021-2035 support. Institutional Review Board Statement: Not applicable. Informed Consent Statement: Informed consent was obtained from all subjects involved in the study. Data Availability Statement: All data generated or analyzed during this study are included in this published article. Conflicts of Interest: The authors declare no conflict of interest. References Zhang, H.; Zhou, E. Livable, suitable for work and beautiful rural construction: realistic foundation and realization path [J]. China's rural economy . 2023 (09): 36-47. Zhou, G.; Wu, G.; Liu, B. 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3","display":"","copyAsset":false,"role":"figure","size":668501,"visible":true,"origin":"","legend":"\u003cp\u003eEvaluation results of a single factor constraint on the suitability of village construction land\u003c/p\u003e","description":"","filename":"3.png","url":"https://assets-eu.researchsquare.com/files/rs-4994781/v1/68b7c5353e38e712293fb3e5.png"},{"id":72667387,"identity":"f032953e-30d7-49fc-9ff6-22433620a24c","added_by":"auto","created_at":"2024-12-31 03:45:22","extension":"png","order_by":4,"title":"Figure 4","display":"","copyAsset":false,"role":"figure","size":157523,"visible":true,"origin":"","legend":"\u003cp\u003eEvaluation results of the suitability of village construction land\u003c/p\u003e","description":"","filename":"4.png","url":"https://assets-eu.researchsquare.com/files/rs-4994781/v1/613b89d8a0269aae0b56a401.png"},{"id":72667386,"identity":"10d5812f-49a4-4839-99e6-7fa843f347f8","added_by":"auto","created_at":"2024-12-31 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China","fulltext":[{"header":"Introduction","content":"\u003cp\u003eAs China promotes coordinated urban and rural development, village planning has become not only a policy needed to build harmonious villages but also a priority theme for the implementation of the rural revitalization strategy\u003csup\u003e[\u003cspan citationid=\"CR1\" class=\"CitationRef\"\u003e1\u003c/span\u003e]\u003c/sup\u003e, Village construction land is an important land type for village planning and has been highly valued by many departments\u003csup\u003e[\u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2\u003c/span\u003e]\u003c/sup\u003e. Village construction land has become a crucial lever for optimizing the layout of regional construction land. Particularly since the implementation of the urban-rural integration development strategy and the urban-rural land-use linkage policy, China has been steadily advancing the urbanization of agricultural migrant populations, continuously promoting rural land system reforms, and accelerating the construction of integrated urban-rural infrastructure. These efforts have played an active role in regulating the scale of urban and rural construction land and optimizing its spatial layout\u003csup\u003e[\u003cspan additionalcitationids=\"CR4\" citationid=\"CR3\" class=\"CitationRef\"\u003e3\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR5\" class=\"CitationRef\"\u003e5\u003c/span\u003e]\u003c/sup\u003e. However, as an important place for villagers to produce and live, the village construction land has long had prominent problems such as lack of planning and layout guidance and chaos of land reduction and increase\u003csup\u003e[\u003cspan citationid=\"CR6\" class=\"CitationRef\"\u003e6\u003c/span\u003e]\u003c/sup\u003e, The coexistence of idle waste and disorderly expansion of village construction land is more serious, which may further restrict the modernization of urban and rural space governance\u003csup\u003e[\u003cspan citationid=\"CR7\" class=\"CitationRef\"\u003e7\u003c/span\u003e]\u003c/sup\u003e. With the continuous progress of village construction land renovation, the renovation potential and its difficulty will continue to increase, and there may also be many problems, such as re-occupation of reclaimed land, abandoned land and \"secondary hollowing out\" of new resettlement communities\u003csup\u003e[\u003cspan citationid=\"CR8\" class=\"CitationRef\"\u003e8\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR9\" class=\"CitationRef\"\u003e9\u003c/span\u003e]\u003c/sup\u003e. Adhering to the rural revitalization strategy and the context of economical and intensive land use, the suitability evaluation and optimization simulation of village construction land is helpful to accelerate the overall layout of construction land, improve the living environment and improve the economical and intensive use of land use.\u003c/p\u003e \u003cp\u003eEnsuring the scientific layout and rational utilization of village construction land has attracted more and more attention from political circles, public and academic circles. From the perspective of international research, studies on the spatial distribution characteristics and optimization of rural construction land began relatively early. These studies primarily focus on rural areas outside urban districts, which can serve as reserve support areas for cities\u003csup\u003e[\u003cspan citationid=\"CR10\" class=\"CitationRef\"\u003e10\u003c/span\u003e]\u003c/sup\u003e. By employing spatial reconstruction methods and developing multi-objective models, these approaches effectively address the scattered and disordered nature of current spatial layouts, enabling the optimization and adjustment of regional land structures and quantities\u003csup\u003e[\u003cspan additionalcitationids=\"CR12\" citationid=\"CR11\" class=\"CitationRef\"\u003e11\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR13\" class=\"CitationRef\"\u003e13\u003c/span\u003e]\u003c/sup\u003e. Moreover, they provide a buffer against issues such as urban congestion caused by urban development and population growth\u003csup\u003e[\u003cspan citationid=\"CR14\" class=\"CitationRef\"\u003e14\u003c/span\u003e]\u003c/sup\u003e. Considering that land-use layouts are influenced by various factors, including the ecological environment and social development, it is essential to designate specific protected areas\u003csup\u003e[\u003cspan citationid=\"CR15\" class=\"CitationRef\"\u003e15\u003c/span\u003e]\u003c/sup\u003e. From the domestic research, many scholars in China, when studying village construction land, primarily focus on rural residential land. This is typically defined as areas concentrated on the living and working activities of villagers, encompassing land for homesteads, transportation infrastructure, and industrial facilities. The village construction land, as an important potential space for the improvement of the utilization efficiency of natural resources in China, is focused on the appropriate evaluation of the village construction land\u003csup\u003e[\u003cspan citationid=\"CR16\" class=\"CitationRef\"\u003e16\u003c/span\u003e]\u003c/sup\u003e, Scale forecast\u003csup\u003e[\u003cspan citationid=\"CR17\" class=\"CitationRef\"\u003e17\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR18\" class=\"CitationRef\"\u003e18\u003c/span\u003e]\u003c/sup\u003eOptimize the layout\u003csup\u003e[\u003cspan citationid=\"CR19\" class=\"CitationRef\"\u003e19\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR20\" class=\"CitationRef\"\u003e20\u003c/span\u003e]\u003c/sup\u003eRectify potential\u003csup\u003e[\u003cspan citationid=\"CR21\" class=\"CitationRef\"\u003e21\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR22\" class=\"CitationRef\"\u003e22\u003c/span\u003e]\u003c/sup\u003eIn other studies, the differential control strategy of village construction land is proposed to achieve the goal of improving land use efficiency. The research scale is mostly village level or plot units, and the study area is mountainous and hilly areas\u003csup\u003e[\u003cspan citationid=\"CR19\" class=\"CitationRef\"\u003e19\u003c/span\u003e]\u003c/sup\u003e, ecologically vulnerable area\u003csup\u003e[\u003cspan citationid=\"CR6\" class=\"CitationRef\"\u003e6\u003c/span\u003e, \u003cspan citationid=\"CR16\" class=\"CitationRef\"\u003e16\u003c/span\u003e]\u003c/sup\u003eThe surrounding area of the town\u003csup\u003e[\u003cspan citationid=\"CR7\" class=\"CitationRef\"\u003e7\u003c/span\u003e, \u003cspan citationid=\"CR22\" class=\"CitationRef\"\u003e22\u003c/span\u003e]\u003c/sup\u003eThe research method is mainly quantitative analysis and supplemented by qualitative, and many research results have been widely used.\u003c/p\u003e \u003cp\u003eThroughout the current research trends, there are more construction land or rural residential land\u003csup\u003e[\u003cspan citationid=\"CR23\" class=\"CitationRef\"\u003e23\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR24\" class=\"CitationRef\"\u003e24\u003c/span\u003e]\u003c/sup\u003e, while research specifically targeting village construction land remains relatively rare. At present, no relatively unified and comprehensive standards for evaluating the suitability of village construction land have been established domestically or internationally. Moreover, optimization simulation studies considering the human-land linkage are scarce\u003csup\u003e[\u003cspan citationid=\"CR25\" class=\"CitationRef\"\u003e25\u003c/span\u003e\u0026ndash;\u003cspan citationid=\"CR26\" class=\"CitationRef\"\u003e26\u003c/span\u003e]\u003c/sup\u003e, and there is a notable lack of systematic evaluation frameworks and methodologies.The development and utilization of land in the urban-rural fringe has become the key and difficult problems in the rapid social and economic development areas that need to be paid special attention to and solved in the next step\u003csup\u003e[\u003cspan citationid=\"CR27\" class=\"CitationRef\"\u003e27\u003c/span\u003e]\u003c/sup\u003eEspecially in the new type, driven by the urbanization process, a large number of rural population flows into cities and towns, the use of village construction land is relatively extensive, and the rural homestead is idle or abandoned for a long time. It is very important and urgent to study how to better optimize the simulation and strategic supply according to the suitability characteristics of village construction land. Based on this, this study selects the typical urban-rural integration in Anhui province Chuzhou city jurisdiction 49 administrative villages for the research scope, build \"potential-constraint\" model under the framework of village construction land suitability evaluation index system and measure appropriate degree, further optimization simulation and differential control strategy, for similar regional village construction land strategy supply, provide theoretical basis and technical support.\u003c/p\u003e"},{"header":"1. Overview of the study area and study methods","content":"\u003cp\u003e\u003cem\u003e1.1. Overview of the study area\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eThe jurisdiction of Chuzhou is located in the east of Anhui Province and the southeast of Chuzhou, with Guangming City in the north, Dingyuan County in the west, Quanjiao County in the south, Lai\u0026apos;an County and Liuhe District in the east and close to the downtown area of Nanjing. It is located in the central urban area of Nanjing metropolitan area and is also one of the major cities in the integrated development of the Yangtze River Delta (Figure 1). The traffic in this region extends in all directions, Beijing-Shanghai railway, Beijing-Shanghai high-speed railway through the border, Chu-Huai expressway from west to east, Chu-mayang expressway from south to north through the national road 104 and Ningluo high-speed intersection, 18 minutes to reach Nanjing downtown area, drive 90 minutes to Nanjing Lukou Airport, Shanghai downtown area. Research area is located in the edge of Chuzhou city area, both the spread of urban elements, and the need to a certain extent to retain the original land pattern, and urban construction land expansion and cultivated land protection, village construction land has diversity and complexity, can be used as a typical representative of the study of urban and rural integration area. Construction land in the study area was 3864.13 hm\u003csup\u003e2\u003c/sup\u003eAmong them, the village construction land reached 2,794.39 hm\u003csup\u003e2\u003c/sup\u003e, Accounting for more than 70% of the construction land, and it is urgent to optimize the utilization of village construction land under the situation of urban and rural development.\u003c/p\u003e\n\u003cp\u003e\u003cem\u003e1.2. Construction of evaluation index system and weight determination\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eComprehensive reference to related studies\u003csup\u003e[24-26]\u003c/sup\u003e, Impact village construction land suitable degree involving natural endowment, social economy, ecological environment, system combing natural geography (N), location traffic (L), social economy (S), ecological environment (E) four dimensions, considering the village construction land direction, further summarized as potential factor and constraint factor (table 1).\u003c/p\u003e\n\u003cp\u003e(1) Potential factor\u003c/p\u003e\n\u003cp\u003ePotential factor refers to promoting the village construction and development, and selects the density of river network (N\u003cem\u003e\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e), Road network density (L\u003cem\u003e\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e), density of population (S\u003cem\u003e\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e), per capita net income (S\u003cem\u003e\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e), Village collective income (S\u003cem\u003e\u003csub\u003e4\u003c/sub\u003e\u003c/em\u003e) And land-use intensity (E\u003cem\u003e\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e) As a potential factor. River is not only an important source of drinking water for villagers, but also an important guarantee for the development of agricultural activities. The transportation function of river plays an important role in improving the transportation system of some villages and promoting economic and social development. The location and quantity of roads are more oriented to the village development, and the more convenient the traffic, the higher the appropriate degree of construction land. Due to the scarcity of resources in these areas, the relationship between people and land is often more tense, and the village construction land will be preferred to expand to the areas with higher population density. The economic level of the village reflects the appropriate level of the village construction land to some extent, and the per capita net income is the basic embodiment of the villagers\u0026apos; income, which directly reflects the wealth of the villagers. The per capita net income is high, the natural, social and economic attributes are better, and the suitable living conditions are generally high. The village collective income reflects the overall economic situation of the village, is an important comprehensive index of the level of rural economic development, and reflects the overall suitability of the village. Land resources are the basis for the survival of villages. In line with the principle of protecting agricultural land, the development of village construction land should optimize the unused land and industrial and mining land, and avoid the occupation of cultivated land as far as possible.\u003c/p\u003e\n\u003cp\u003e(2) The constraint factor\u003c/p\u003e\n\u003cp\u003eThe constraint factor refers to the factors that hinder the village development of construction land due to the special nature of the factor itself. The larger the score, the more unfavorable the village construction land, and the elevation is selected (N\u003cem\u003e\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e), falling gradient (N\u003cem\u003e\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e), Distance from the organized town (L\u003cem\u003e\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e), Distance from the city center (L\u003cem\u003e\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e), Population turnover rate (S\u003cem\u003e\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e), Vegetation coverage rate (E\u003cem\u003e\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e), The proportion of permanent basic farmland (E\u003cem\u003e\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e) As a constraint factor. Elevation has a limiting effect on the development and construction, which can directly show the regional landform conditions, and the relative height difference determines the direction and resistance of the object. The larger the slope, the worse the regional geological stability, the possibility of geological disasters is higher, and the engineering technical requirements are also higher. The city center and towns have relatively complete infrastructure and industrial and commercial facilities, and the village development has a strong radiation and driving role, and vice versa. The appropriate population size is the premise of village construction and development. The population loss rate reflects the degree of hollowing out of the population in the region. The higher the population loss rate, the higher the hollowing out of the village, the more abnormal the phenomenon of the \u0026quot;man-land link\u0026quot;, and the lower the appropriate level affected by the social and economic level. Vegetation diversity is an important guarantee to maintain ecological diversity. The higher the vegetation coverage rate, the greater the ecological suitability, and the lower the village construction conditions. Due to the restriction of cultivated land protection policy, the scope of basic farmland protection area is not suitable for construction land, and the construction and development are strictly restricted in the protection area, and the existing construction land should be gradually withdrawn.\u003c/p\u003e\n\u003cp\u003eTable 1 Evaluation index system and factor description of the suitability of village construction land\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"586\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 38px;\"\u003e\n \u003cp\u003eTarget layer\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 132px;\"\u003e\n \u003cp\u003eFactor layer\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eFactor layer\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eFactor category\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eData source and processing instructions\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"13\" style=\"width: 38px;\"\u003e\n \u003cp\u003eEvaluation of the suitability of the village construction land\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd rowspan=\"3\" style=\"width: 132px;\"\u003e\n \u003cp\u003eNatural geographic factors (\u003cem\u003eN\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003ealtitude (\u003cem\u003eN\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eConstraints\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eDEM draw\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003efalling gradient (\u003cem\u003eN\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eConstraints\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eDEM draw\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eriver density (\u003cem\u003eN\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003ePotential factor\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eRiver length / total area of area\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"3\" style=\"width: 132px;\"\u003e\n \u003cp\u003eLocation-traffic Factor (\u003cem\u003eL\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eDistance from the organized town (\u003cem\u003eL\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eConstraints\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eNeighborhood analysis-neighborhood tables\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eDistance from the city center (\u003cem\u003eL\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eConstraints\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eNeighborhood analysis-neighborhood tables\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eRoad network density (\u003cem\u003eL\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003ePotential factor\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eNeighborhood analysis-neighborhood tables\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"4\" style=\"width: 132px;\"\u003e\n \u003cp\u003eSocioeconomic factors (\u003cem\u003eS\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003edensity of population (\u003cem\u003eS\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003ePotential factor\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003ePermanent population / total area\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eincome per head (\u003cem\u003eS\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003ePotential factor\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eField investigation and village research and collection\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003ePopulation turnover rate (\u003cem\u003eS\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eConstraints\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003ePermanent resident population / registered population\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eVillage collective income (\u003cem\u003eS\u003csub\u003e4\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003ePotential factor\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eField investigation and village research and collection\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"3\" style=\"width: 132px;\"\u003e\n \u003cp\u003eEco-environmental factors (\u003cem\u003eE\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eVegetation coverage rate (\u003cem\u003eE\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eConstraints\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eDEM draw\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eLand-use intensity (\u003cem\u003eE\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003ePotential factor\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eConstruction land area / total area area\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 150px;\"\u003e\n \u003cp\u003eProportion of permanent prime farmland (\u003cem\u003eE\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003eConstraints\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 189px;\"\u003e\n \u003cp\u003eArea of permanent prime farmland / total area\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e(3) Value assignment and weight of evaluation factor classification\u003c/p\u003e\n\u003cp\u003eDue to the different measures of evaluation factors and different evaluation units, direct quantitative analysis cannot be carried out. The study will conduct quantitative grading on the basis of qualitative analysis to ensure that all evaluation factors in the evaluation units follow the quantitative standards and are comparable and computable. Elevation and slope reference China landform division standard, distance from the town, from the city center reference urban land classification and planning construction land classification standard, road network density and river network density reference of Chuzhou city overall planning (2012-2030), permanent basic farmland reference Chuzhou national spatial planning \u0026quot;three line\u0026quot; designated results, all index reference part industry standard after unified natural breakpoint method of the evaluation factor grade into 4, corresponding value score is 100,75,50,25, the higher the score represents the higher appropriate degree (Table 2). Weighting is used to describe the relative importance of a single index or factor in the overall evaluation. According to the principle of scientific, reasonable, simple and easy to operate, the CRITIC weight method is selected as the method to determine the weight of each factor.\u003c/p\u003e\n\u003cp\u003eTable 2 Classification and quantification of the suitability evaluation indicators of village construction land\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"554\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"2\" style=\"width: 28px;\"\u003e\n \u003cp\u003efactor of evaluation\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd rowspan=\"2\" style=\"width: 104px;\"\u003e\n \u003cp\u003eEvaluation factor\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd colspan=\"4\" style=\"width: 360px;\"\u003e\n \u003cp\u003eIndex quantification and score value\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd rowspan=\"2\" style=\"width: 61px;\"\u003e\n \u003cp\u003eWeight\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eone-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003etwo-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003ethree-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003efour-level\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"3\" style=\"width: 28px;\"\u003e\n \u003cp\u003eNatural geographic factors (\u003cem\u003eN\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eAltitude (\u003cem\u003eN\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e131.00-84.46\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e84.46-61.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e61.22-35.50\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e35.50-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.0732\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eFalling gradient (\u003cem\u003eN\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e8.64-4.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e4.45-3.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e3.23-2.40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e2.40-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.0490\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eRiver density (\u003cem\u003eN\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.08-0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e0.04-0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e0.02-0.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e0.01-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.0901\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"3\" style=\"width: 28px;\"\u003e\n \u003cp\u003eLocation-based Traffic Factor (\u003cem\u003eL\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eDistance from the organized town (\u003cem\u003eL\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.00-3.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e3.06-4.85\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e4.85-7.11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e7.11-9.36\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.1626\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eDistance from the city center (\u003cem\u003eL\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.00-14.68\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e14.68-22.75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e22.75-30.53\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e30.53-43.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.1329\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eDensity of road network (\u003cem\u003eL\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.04-0.03\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e0.03-0.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e0.02-0.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e0.01-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.1719\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"4\" style=\"width: 28px;\"\u003e\n \u003cp\u003eSocioeconomic factors (\u003cem\u003eS\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eDensity of population (\u003cem\u003eS\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.30-0.20\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e0.20-0.15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e0.15-0.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e0.10-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.0933\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003ePer capita net income (\u003cem\u003eS\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e20532-18232\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e18231-16384\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e16383-14722\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e14721-10000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.1957\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003ePopulation turnover rate (\u003cem\u003eS\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.87-0.73\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e0.73-0.53\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e0.53-0.15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e0.15-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.2620\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eVillage collective income (\u003cem\u003eS\u003csub\u003e4\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e278930-236501\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e236500-184501\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e184500-136001\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e136000-100000\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.2221\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd rowspan=\"3\" style=\"width: 28px;\"\u003e\n \u003cp\u003eEco-environmental factors (\u003cem\u003eE\u003c/em\u003e)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eVegetational cover (\u003cem\u003eE\u003csub\u003e1\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.86-0.74\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e0.74-0.67\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e0.67-0.58\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e0.58-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.1043\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eLand-use intensity (\u003cem\u003eE\u003csub\u003e2\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.50-0.09\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e0.09-0.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e0.06-0.04\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e0.04-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.2269\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003eThe proportion of permanent prime farmland (\u003cem\u003eE\u003csub\u003e3\u003c/sub\u003e\u003c/em\u003e）\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 104px;\"\u003e\n \u003cp\u003e0.67-0.56\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003e0.56-0.41\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 77px;\"\u003e\n \u003cp\u003e0.41-0.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 84px;\"\u003e\n \u003cp\u003e0.13-0.00\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e0.2160\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003cem\u003e1.3. Potential- -the constraint model construction\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003e\u0026nbsp;Considering the expansion potential of village construction land and natural ecological constraints, the \u0026quot;potential-constraint\u0026quot; evaluation model is constructed to show the suitability degree of village construction land by the difference between potential factor and constraint factor. The model calculation formula is provided as described in：\u003c/p\u003e\n\u003cp\u003e\u003cimg 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\" width=\"643\" height=\"65\"\u003e\u003c/p\u003e\n\u003cp\u003eWhere: \u003cem\u003eE\u003c/em\u003e is the suitability level of village construction land, \u003cem\u003en\u003c/em\u003e is the total number of suitability potential or constraint factors, \u003cem\u003eW\u003csub\u003eai\u003c/sub\u003e\u003c/em\u003eFor the potential factor weight, \u003cem\u003eF\u003csub\u003eai\u003c/sub\u003e\u003c/em\u003eFor the potential factor suitability, \u003cem\u003eW\u003csub\u003ebi\u003c/sub\u003e\u003c/em\u003eFor the constraint factor weight, \u003cem\u003eF\u003csub\u003ebi\u003c/sub\u003e\u003c/em\u003eIs the constraint factor suitability. The natural breakpoint method is adopted, and the whole study area is divided into four categories: suitable construction, more suitable construction, generally suitable construction and unsuitable construction.\u003c/p\u003e\n\u003cp\u003e\u003cem\u003e1.4. Data source and processing\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eCombined with the achievements of \u0026quot;three districts and three lines\u0026quot; in Chuzhou, Excluding the urban development boundary of Chuzhou city, Using the remaining area as the study area, Involving 49 administrative villages; Natural geographic data, Elevation, slope, river network density and vegetation coverage are derived from the geospatial data cloud website downloaded with 12.5m resolution DEM data extraction; Location and traffic conditions, The distance from the city center, the organized town and the road network density are derived from the land survey data and the vector data of the Overall City Plan of Chuzhou (2012-2030), Provided by the nature, housing and construction departments of Chuzhou city; socioeconomic data, Population data and income data are derived from the township survey data of the overall territorial space planning of Chuzhou, Take the on-site data collection method to obtain; The level of urbanization comes from the statistical Yearbook of Chuzhou, By the website of Chuzhou Bureau of Statistics; Land use intensity and the proportion of permanent basic farmland are derived from the land survey data.\u003c/p\u003e"},{"header":"2. Analysis of the suitability evaluation results of village construction land","content":"\u003cp\u003e\u003cem\u003e2.1. Potential analysis\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eThe potential value of the construction land of unit villages is calculated, and the greater the potential value and the higher the potential level. The natural breakpoint method was adopted to divide the potential level of village construction land into four types, and the potential spatial classification map of village construction land was exported combined with the potential value (Figure 2). The village construction land in the study area is mainly the three-level potential, A total of 19 evaluation units, For 38.62% of the total area, Found mainly in the north and northeast, In southern areas, The population density of this region is more overall than that of other regions; Four by four potential zones, The 11 evaluation units, For 27.56% of the total area, Mainly in the south and in the northeast, The area is close to the city, Per capita net income is relatively high, More construction land development in some areas, High land-use intensity; There are nine evaluation units in the secondary potential units, Mainly distributed in the southwest region, Small distribution in the eastern region, Involving the removal and merger of more rural settlements, Strong demand for land for developing village construction, And is driven by township enterprises, The village collective income and per capita net income are considerable; The least potential level area, Accounted for 15.60%, In the urban area, The area is the closest to the downtown location, The urban distribution is relatively concentrated, Driven by the regional social and economic development, the development of the surrounding construction land is early and relatively perfect (Table 3).\u003c/p\u003e\n\u003cp\u003eTable 3 Summary table of the suitability potential of village construction land\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"568\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 45px;\"\u003e\n \u003cp\u003eRank\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 66px;\"\u003e\n \u003cp\u003eEvaluation Unit / Individual\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003eArea /hm2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 94px;\"\u003e\n \u003cp\u003eArea Ratio /%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 306px;\"\u003e\n \u003cp\u003eInvolved in the village\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 45px;\"\u003e\n \u003cp\u003eone-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 66px;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e105.84\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 94px;\"\u003e\n \u003cp\u003e15.60%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 306px;\"\u003e\n \u003cp\u003eChengxi , Xinji , Shima , Qiutong , Huqiao , Guanshan , Lugang , Dengba , Sanguan , Shanlin\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 45px;\"\u003e\n \u003cp\u003etwo-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 66px;\"\u003e\n \u003cp\u003e9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e123.47\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 94px;\"\u003e\n \u003cp\u003e18.21%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 306px;\"\u003e\n \u003cp\u003eChangshan , Huji , Taipingji , Yuansong , Huangfu , Yawo , Machang , Mengwa , Zhangguang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 45px;\"\u003e\n \u003cp\u003ethree-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 66px;\"\u003e\n \u003cp\u003e19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e261.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 94px;\"\u003e\n \u003cp\u003e38.63%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 306px;\"\u003e\n \u003cp\u003eJingnan , Guangshan , Tangzhuang , Huashan , Zhuying , Zhulong , Hengtang , Chenwang , Xingzhu , Youfang , Erlang , Beiguan , Baimi , Guantang , Guangwei , Quting , Muzhuang , Huayanan , Caowang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 45px;\"\u003e\n \u003cp\u003efour-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 66px;\"\u003e\n \u003cp\u003e11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e186.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 94px;\"\u003e\n \u003cp\u003e27.56%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 306px;\"\u003e\n \u003cp\u003eYangfan , Fengshan , Mingzhang , Liji , Hedong , Rongyao , Sungang , Longpan , Wanying , Dalin , Zhangbuying\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003cem\u003e2.2. Constraint analysis\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eThe binding value of village construction land is calculated by superposition the constraints of the study area. The larger the binding value, the higher the constraint level. The binding level of village construction land is divided into four levels, and the binding spatial classification map of village construction land is generated combined with the distribution of binding value. The study area is dominated by the secondary and tertiary constraint areas, which account for 56.72% of the study area, among which, the secondary constraint area covers 13 evaluation units with an area of 197.76 hm\u003csup\u003e2\u003c/sup\u003e, 29.16%; the area of tertiary restraint area is 186.97 hm\u003csup\u003e2\u003c/sup\u003e, Accounting for 27.56%, involving a total of 15 evaluation units, the first-level constraint area is relatively low, 22.34%, the area of 151.50 hm\u003csup\u003e2\u003c/sup\u003e, 11 evaluation units; the minimum proportion of restraint 4 is 20.94% and 10 evaluation units (Table 4). From the perspective of the spatial distribution, The overall distribution of the first-level constraint regions is less, Concentrated in the southwest region, A small and sporadic distribution in the northeast, The area is far away from the downtown area, The radiation driving effect is relatively weak, The population turnover rate is more serious, Some rural settlements, \u0026quot;hollow houses, hollow villages\u0026quot; phenomenon is more serious, The area involves larger areas of permanent prime farmland, The development of village construction land is strictly restricted; The secondary and tertiary constraints are distributed in the \u0026quot;northeast-southwest\u0026quot; band in the middle of the study area, The secondary restraint area is mainly mountainous terrain, Abundant in forest resources, High vegetation coverage rate, Good ecological environment, In the northwest area of the municipal district and far away from the city center; The southern area of the third-level restraint area is greatly affected by the terrain, High average elevation, high slope, High engineering construction technology and cost requirements; The four-level restraint zone is concentrated in the east and southeast, The area is mainly influenced by topographic and ecological factors, With a high terrain slope, High vegetation coverage rate, The population turnover rate is high in the southeast region (Figure 3).\u003c/p\u003e\n\u003cp\u003eTable 4 Summary of the suitability constraints of village construction land\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"568\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 72px;\"\u003e\n \u003cp\u003eRank\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 67px;\"\u003e\n \u003cp\u003eEvaluation Unit / Individual\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 76px;\"\u003e\n \u003cp\u003eArea /hm\u003csup\u003e2\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 85px;\"\u003e\n \u003cp\u003eArea Ratio /%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 268px;\"\u003e\n \u003cp\u003eInvolved in the village\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 72px;\"\u003e\n \u003cp\u003eone-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 67px;\"\u003e\n \u003cp\u003e11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 76px;\"\u003e\n \u003cp\u003e151.50\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 85px;\"\u003e\n \u003cp\u003e22.34%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 268px;\"\u003e\n \u003cp\u003eChangshan , Huayanan , Lugang , Zhangbuying , Huangfu , Taipingji , Zhangguang , Machang , Huji , Mengwa , Yuansong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 72px;\"\u003e\n \u003cp\u003etwo -level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 67px;\"\u003e\n \u003cp\u003e13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 76px;\"\u003e\n \u003cp\u003e197.76\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 85px;\"\u003e\n \u003cp\u003e29.16%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 268px;\"\u003e\n \u003cp\u003eChenwang , Muzhuang , Caowang , Tangzhuang , Guangwei , Liji , Wanying , Dalin , Quting , Guangshan , Yawo , Hengtang , Zhuying\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 72px;\"\u003e\n \u003cp\u003ethree-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 67px;\"\u003e\n \u003cp\u003e15\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 76px;\"\u003e\n \u003cp\u003e186.97\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 85px;\"\u003e\n \u003cp\u003e27.56%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 268px;\"\u003e\n \u003cp\u003eHuqiao , Baimi , Xinji , Sanguan, Yangfan , Dengba , Beiguan , Guantang , Qiutong , Sungang , Zhulong , Jingnan , Xingzhu , Youfang , Mingzhang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 72px;\"\u003e\n \u003cp\u003efour-level\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 67px;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 76px;\"\u003e\n \u003cp\u003e141.99\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 85px;\"\u003e\n \u003cp\u003e20.94%\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 268px;\"\u003e\n \u003cp\u003eLongpan , Erlang , Chengxi , Hedong , Shima , Huashan , Guanshan , Rongyao , Shanlin , Fengshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003cem\u003e2.3. Suitability analysis\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eAccording to the model of \u0026quot;potential-constraint\u0026quot;, the suitability of village construction land is computed, and the suitability level of village construction land is divided into 4 levels (Figure 4, Table 5 and Table 6). The general suitable area is the largest area, with a total of 19 evaluation units, accounting for 38.63% of the total area, mainly distributed in the northern and northeast regions. The natural and social and economic conditions of this kind of land have not yet reached the conditions of development and utilization, so it can only be appropriately developed and utilized under scientific guidance. Suitable area land resources suitability level, the village construction land potential and minimum binding, the most suitable large-scale agglomeration development, is the preferred area of village construction land site, mainly distributed in the east of the research area, southwest have scattered distribution, through the analysis of the superposition of the selection index, accounting for 15.60% of the total area, can meet the urban social and economic development demand for village construction land, will not cause more serious land conflict. The more suitable area accounts for 18.21%, which is concentrated in the southwest area of the research area. Although the suitable level of such land resources is lower than that of the suitable area, it can be used as a good reserve area of the suitable area. In the future, with the social and economic development, the land resources will be preferentially expanded as a suitable area. The unsuitable area accounts for 27.56%, mainly distributed in the south and east of the study area, and production and construction activities should be avoided as far as possible. With few main traffic lines, weak influence of infrastructure, large population migration, low population density and high turnover rate, it is recommended to carry out environmental protection and ecological restoration projects.\u003c/p\u003e\n\u003cp\u003eTable 5 Summary table of the suitability of village construction land\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"554\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eAdministrative Village\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003eScore of Suitability\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable Grade\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eAdministrative Village\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003eScore of Suitability\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eSuitable Grade\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eShanlin\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e65050.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eBeiguan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e39033.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eSanguan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e64824.71\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eBaimi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e39003.64\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eDengba\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e62708.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eErlang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e38996.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eLugang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e61377.61\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eYoufang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e38591.76\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eGuanshan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e60724.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eXingzhu\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e38491.44\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eQiutong\\\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e60110.59\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eChenwang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e38450.10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eHuqiao\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e60082.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eHengtang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e37860.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eShima\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e60047.40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eZhulong\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e36290.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eXinji\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e58815.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eZhuying\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e35924.91\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eChengxi\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e58326.57\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eHuashan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e35482.82\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eZhangguang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e55940.99\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eTangzhuang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e35287.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eMengwa\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e55215.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eGuangshan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e35204.76\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eMachang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e54683.38\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eJingnan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e35018.80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eYawo\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e53190.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eZhangbuying\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e33974.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eHuangfu\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e52522.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eDalin\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e33149.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eYuansong\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e51411.61\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eLongpan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e32363.41\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eTaipingji\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e51313.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eWanying\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e32329.78\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eHuji\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e49768.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eSungang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e32024.70\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eChangshan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e47316.08\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eRongyao\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e31719.63\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eCaowang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e43958.85\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eHedong\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e31517.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eHuayanan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e41450.42\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eLiji\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e31153.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eMuzhuang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e41110.63\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eMingzhang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e28842.35\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eQuting\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e40711.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eFengshan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e28573.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eGuangwei\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e40202.84\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003eYangfan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e25529.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 95px;\"\u003e\n \u003cp\u003eGuanTang\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 101px;\"\u003e\n \u003cp\u003e39701.70\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 98px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 81px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 91px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 88px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003eTable 6 Summary table of the suitability level of village construction land\u003c/p\u003e\n\u003ctable border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"568\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 159px;\"\u003e\n \u003cp\u003eRank\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 147px;\"\u003e\n \u003cp\u003eEvaluation Unit / Individual\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 121px;\"\u003e\n \u003cp\u003eArea /hm\u003csup\u003e2\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 142px;\"\u003e\n \u003cp\u003eArea Ratio /%\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 159px;\"\u003e\n \u003cp\u003eSuitable area\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 147px;\"\u003e\n \u003cp\u003e10\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 121px;\"\u003e\n \u003cp\u003e105.84\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 142px;\"\u003e\n \u003cp\u003e15.60%\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 159px;\"\u003e\n \u003cp\u003eMore suitable area\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 147px;\"\u003e\n \u003cp\u003e9\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 121px;\"\u003e\n \u003cp\u003e123.47\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 142px;\"\u003e\n \u003cp\u003e18.21%\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 159px;\"\u003e\n \u003cp\u003eGenerally suitable area\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 147px;\"\u003e\n \u003cp\u003e19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 121px;\"\u003e\n \u003cp\u003e261.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 142px;\"\u003e\n \u003cp\u003e38.63%\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 159px;\"\u003e\n \u003cp\u003eNot suitable area\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 147px;\"\u003e\n \u003cp\u003e11\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 121px;\"\u003e\n \u003cp\u003e186.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 142px;\"\u003e\n \u003cp\u003e27.56%\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e"},{"header":"3. Optimization simulation study of village construction land","content":"\u003cp\u003e\u003cem\u003e3.1. Optimization concept of village construction land\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003e(1) Optimize the layout of village construction land under the background of \u0026quot;multi-plan integration\u0026quot;\u003c/p\u003e\n\u003cp\u003eThe optimization of the layout of village construction land should start from the whole and consider the key points and differences of various planning\u003csup\u003e[27]\u003c/sup\u003e. National spatial planning emphasizes the spatial layout, development goals and hierarchical structure, optimizing the layout of village construction land according to the functional areas set in the planning; industrial planning guides the social and economic benefits, emphasizes the overall layout of the structure and layout of three industries to ensure the demand for construction land for various development; ecological planning and basic farmland planning focus on the protection of the quality and quantity of non-construction land, and the location of village construction land should avoid permanent basic farmland and ecological protection areas. All the planning focus on the same region, there are cross and coordinated parts, to build a unified planning target system. According to the background of \u0026quot;multi-plan integration\u0026quot;, we should coordinate the spatial layout and quantity and scale of all kinds of planned land, give priority to the protection of permanent basic farmland and ecological areas, and take the village development as the core, and gradually realize the layout optimization.\u003c/p\u003e\n\u003cp\u003e(2) Adjustment of village construction land layout under the guidance of planning indicators\u003c/p\u003e\n\u003cp\u003eThe influence of national strategy, policy guidelines and planning indicators plays an important role in village construction and development, and the influence of the above factors on the scale layout of village construction land should be actively considered\u003csup\u003e[28]\u003c/sup\u003e. Chuzhou has always been taking high-quality development as the theme, taking the urban area as the center to drive the surrounding areas, and fully promoting the regional comprehensive development, putting forward the construction of the \u0026quot;Great Jiangbei coordinated development area\u0026quot; at a high level, and building a pilot area and demonstration area to promote the integrated development of the Yangtze River Delta. Based on the overall pattern of regional coordinated development, the overall urban development pattern of \u0026quot;one main and four auxiliary\u0026quot; with the main urban area of Chuzhou, among which the main urban area radiates to Waopu Town, Shahe Town, Wuyi Town and other areas. The planning indicators should be scientifically determined, emphasizing the formation of intensive and compact urban spatial pattern, and the comprehensive scale of land will be controlled by the urban area with the focus to the south. In the future, the development of village construction land will be centered on Jianxi Street, close to the urban area, focusing on the surrounding Shahe Town, Waopu Town and Zhulong Town.\u003c/p\u003e\n\u003cp\u003e\u003cem\u003e3.2. Forecast of village construction land scale\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003e(1) Forecast of the village\u0026apos;s permanent resident population\u003c/p\u003e\n\u003cp\u003eThe internal change law of village construction land expansion is not random, and the standard scale method is used to predict the future village construction land scale in the research area. Taking the permanent population as the base data, the comprehensive growth rate method is used to predict the permanent population size. The calculation formula is:\u003c/p\u003e\n\u003cp\u003e\u003cimg src=\"data:image/png;base64,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\" height=\"45\" width=\"636\"\u003e\u003c/p\u003e\n\u003cp\u003eIn formula: \u003cem\u003eP\u003csub\u003et\u003c/sub\u003e\u003c/em\u003ePredict the total population number for the future, \u003cem\u003eP\u003csub\u003e0\u003c/sub\u003e\u003c/em\u003eFor the base period of the total population, \u003cem\u003em\u003c/em\u003e for the comprehensive growth rate (the sum of natural and mechanical growth rate), \u003cem\u003en\u003c/em\u003e for forecast fixed number of year, considering the Chuzhou is located in Nanjing metropolitan circle, Yangzhou economic circle and countries vigorously promote the county new urbanization development strategy (figure 5), the future resident population gradually to the urban or urban areas, comprehensive determine study population growth of 4.94 \u0026permil;, into the formula to determine the population size in 2035 (table 7).\u003c/p\u003e\n\u003cp\u003eTable 7 Summary table of the resident population size prediction in the study area\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"554\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eadministrative village\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003eStatus of the year\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003eForecast year\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eadministrative village\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003eStatus of the year\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003eForecast year\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eadministrative village\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003eStatus of the year\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003eForecast year\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eBaimi\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e2790\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e2629\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eGuantang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1662\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1566\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eQuting\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e3230\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e3044\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eYoufang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e1772\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1670\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eGuangwei\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e896\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e844\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eErlang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1009\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e951\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eChangshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e321\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e302\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eMuzhuang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1225\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1154\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eDalin\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e628\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e592\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eHuji\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e530\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e499\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eXingzhu\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e659\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e621\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eFengshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e657\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e619\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eHuangfu\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e296\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e279\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eZhulong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e952\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e897\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eHedong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e380\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e358\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eLugang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e328\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e309\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eHengtang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1364\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1285\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eHuashan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e797\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e751\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eHuayanan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e1231\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1160\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eChengxi\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e2534\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e2388\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eJingnan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1051\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e990\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eMengwa\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e612\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e577\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eHuqiao\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e901\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e849\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eLiJi\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1465\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1380\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eTaipingji\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e512\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e482\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eWanying\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e845\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e796\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eLongpan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1514\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1427\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eYawo\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e733\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e691\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eXinji\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e748\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e705\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eMingzhang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e845\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e796\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eYuansong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e722\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e680\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eQiutong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1131\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1066\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eRongyao\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e907\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e855\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eZhangguang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e376\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e354\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eDengba\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1225\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1154\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eSungang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1433\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1350\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eGuangshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e397\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e374\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eTangzhuang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e720\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e678\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eYangfan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e781\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e736\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eSanguan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e1852\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1745\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eBeiguan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1014\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e955\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eCaowang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e678\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e639\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eZhangbuying\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e1114\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1050\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eGuanshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1945\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1833\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eShima\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e3794\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e3575\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eZhuying\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e673\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e634\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eShanlin\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1414\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e1332\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003egather\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e55278\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e52088\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 65px;\"\u003e\n \u003cp\u003eChenwang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 57px;\"\u003e\n \u003cp\u003e604\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e569\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003eMachang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e516\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e486\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 61px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 62px;\"\u003e\n \u003cp\u003e\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e(2) Simulation of village construction land use\u003c/p\u003e\n\u003cp\u003eConsidering the large overall population density and high urbanization level in the study area, and the high requirements for the intensive use of village construction land, the standard of per capita village construction land in the study area is determined according to the per capita construction land standard and the prediction of population size\u003csup\u003e2\u003c/sup\u003e. According to the per capita quota method, the total scale of village construction land in the study area in 2035 is 729.23 hm\u003csup\u003e2\u003c/sup\u003e(Table 8).\u003c/p\u003e\n\u003cp\u003eTable 8 Current situation of village construction land and forecast of future scale in 2035\u003c/p\u003e\n\u003ctable border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"554\"\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eAdministrative Village\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable Grade\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003eStatus quo Value / hm\u003csup\u003e2\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003ePredicted Value /hm\u003csup\u003e2\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eAdministrative Village\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable Grade\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003eStatus quo Value / hm\u003csup\u003e2\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003ePredicted Value /hm\u003csup\u003e2\u003c/sup\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eShanlin\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e47.94\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e18.65\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eHuji\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e56.83\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e6.99\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSanguan\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e30.29\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e24.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eYuansong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e49.13\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e9.52\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eShima\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e75.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e50.05\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eXingzhu\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e44.17\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e8.69\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGuanshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e51.57\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e25.66\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eYoufang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e161.12\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e23.38\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eChengxi\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e71.45\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e33.43\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGuangwei\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e69.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e11.82\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eDengba\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e44.72\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e16.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eHedong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e36.81\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e5.01\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eHuqiao\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e18.62\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e11.89\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eChenwang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e33.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e7.97\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eXinji\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e44.35\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e9.87\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eQuting\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e102.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e42.61\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eQiutong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSuitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e50.01\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e14.92\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eZhulong\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e21.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e12.56\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eLugang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e36.90\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e4.33\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eRongyao\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e65.40\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e11.97\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eYawo\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e66.19\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e9.67\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eJingnan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e55.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e13.86\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eZhangguang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e53.65\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e4.96\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eHuayanan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e36.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e16.24\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eErlang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e47.02\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e13.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eTangzhuang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e34.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e9.50\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMachang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e46.83\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e6.81\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eSungang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e69.58\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e18.90\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMengwa\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e40.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e8.07\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eHengtang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e44.22\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e17.99\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eHuangfu\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e31.77\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e3.90\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eFengshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e62.98\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e8.67\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eBaimi\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e102.32\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e36.81\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eZhuying\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e49.36\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e8.88\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eCaowang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e39.41\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e8.94\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGuangshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e25.64\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e5.24\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eTaipingji\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMore suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e57.25\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e6.75\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eWanying\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e38.30\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e11.15\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGuantang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e83.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e21.93\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eDalin\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e46.14\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e8.28\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eBeiguan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e58.06\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e13.38\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eLiji\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e78.69\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e19.33\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eChangshan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e48.32\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e4.23\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMingzhang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e58.84\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e11.15\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eHuashan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e99.26\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e10.51\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eYangfan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e76.72\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e10.30\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eMuzhuang\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e22.80\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e16.16\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eZhangbuying\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eNot suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e89.24\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e14.70\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eLongpan\u0026nbsp;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003eGenerally suitable\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e98.31\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e19.97\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003egather\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 69px;\"\u003e\n \u003cp\u003e\u0026mdash;\u0026mdash;\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e2794.39\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd style=\"width: 70px;\"\u003e\n \u003cp\u003e729.23\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n\u003c/table\u003e\n\u003cp\u003e\u003cem\u003e3.3. Optimization of village construction land and zoning\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eIt is of great significance to make good village construction planning and reasonable layout of village construction land to promote the renovation of village construction land under the jurisdiction of Chuzhou and enhance the intensive use of land, and to fully release the ecological, social and economic value of land resources. Based on the suitability evaluation of village construction land in the research area, considering the topographic and landform characteristics, and combining with the demand of future village construction land, the village construction land pattern is optimized and guided, which is specifically divided into the high suitable group development area in the east, the low suitable village contraction area in the middle, and the suitable central agglomeration area in the southwest (Figure 6).\u003c/p\u003e\n\u003cp\u003e(1) Eastern high suitable group development area\u003c/p\u003e\n\u003cp\u003eEastern high suitable area is given priority to with plain terrain, flat open, is the key towns of Chuzhou, is also the main direction of urban group and urban construction land expansion, the overall transportation is convenient, location is superior, village construction land scale, density and covers an area of proportion are larger, village construction land suitability level is high, to promote the village construction land layout optimization. The nearby urbanization mode is adopted for optimization, mainly relying on the traffic lines formed by the existing urban system as the nodes, forming Dengba, Chengxi, Huashan and Huqiao as the core, and the surrounding villages as the radiation range. Located in the urban network node and the surrounding villages, the basic conditions are good, the population density is large and relatively concentrated, driven by the location factors, it develops well and has a strong trend of new urbanization.\u003c/p\u003e\n\u003cp\u003e(2) Central low suitable shrinking village and land area\u003c/p\u003e\n\u003cp\u003eThe central region is mainly mountainous, with high terrain, relatively large drop and lack of gentle area. It is the location of natural scenic area, ecological protection area and water conservation area under the jurisdiction of Chuzhou. For example, Huangfu Mountain National Forest Park and Shahe Reservoir are located in this area, which is also the main area of ecological farmland in Chuzhou. The layout of village construction land in this area is scattered, the scale is relatively small, the endogenous force of economic development is relatively weak, the location and traffic conditions are poor, the ecological environment is fragile, and the overall suitability degree of village construction land is relatively low. Based on the mode of \u0026quot;village teng and land reduction\u0026quot;, the villages that are not suitable for living and development are concentrated into communities with a certain scale and good natural economic conditions. This model emphasizes the optimization of relatively large-scale villages, strengthens the comprehensive improvement of the whole land, and uses the idle construction land of the villages to gradually integrate the scattered small natural villages, so as to expand the high-quality cultivated land resources. With Zhulong, Xingzhu and Liji as the radiation center, the areas with low construction land suitability in other villages gradually \u0026quot;reduce land reduction\u0026quot;, to vacate the land for village construction through reclamation and effectively improve the reserve of cultivated land resources.\u003c/p\u003e\n\u003cp\u003e(3) Southwest Moderately suitable central agglomeration area\u003c/p\u003e\n\u003cp\u003eIn southwest region, hilly terrain is mainly used, the land is mainly agricultural use, and the suitability level of village construction land is mainly suitable. The location conditions, population density, and economic foundation are weaker than those in the eastern plain area, thus restricting the development of village construction land. Southwest hilly areas to take \u0026quot;central village construction\u0026quot; mode optimization village construction layout, choose location conditions and economic development conditions good village as the center, gathered with a certain scale and the surrounding area of the village, through the infrastructure and life service facilities construction, improve foreign traffic conditions, the traffic block villages to convenient transportation village concentration, smaller villages to larger villages, economically backward villages to economically developed villages, optimize southwest hilly area village construction land layout.\u003c/p\u003e"},{"header":"4. Conclusions and Discussion","content":"\u003cp\u003e\u003cem\u003e4.1. Conclusion\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eTaking 49 villages under the jurisdiction of Chuzhou city, Anhui Province as the research area, the evaluation index system of suitability of village construction land was constructed, the suitability of village construction land in the research area was evaluated through the model of \u0026quot;potential-constraint\u0026quot;, and the research on village construction land optimization concept, scale prediction and simulation zoning were further carried out. The conclusions are as follows: (1) explore the factors affecting the suitability of village construction land from the two dimensions of potential and binding force, the potential factor dimension, the village collective income and land use intensity most strongly affect the suitability of village construction land, indicating that the population factor plays an important role in the suitability of village construction land; from the binding factor dimension, the proportion of permanent basic farmland, the distance from the organized town and the population turnover rate affect the most, indicating that the protection of cultivated land puts forward strict requirements for the development of construction land, and the economic development and sufficient population are an important driving force for the expansion of village construction land.(2) The village construction land in the study area is mainly in the general suitable area, accounting for 38.63%, with an area of 261.98 hm\u003csup\u003e2\u003c/sup\u003e; The unsuitable area is 186.93 hm\u003csup\u003e2\u003c/sup\u003e, Accounting for 27.56% of the whole area; the suitable area is 105.84 hm\u003csup\u003e2\u003c/sup\u003e, Accounting for 15.60%, which can guarantee the demand of social and economic development for land for village construction, and the relationship between people and land will be in a harmonious state. The overall suitability distribution pattern of village construction land is \u0026quot;high in the east and southwest, and low in the south and northeast\u0026quot;. The suitable areas are mainly Xijian Street, while the unsuitable areas are mainly Shiji Town. In the future, the village construction land will still be mainly expanded by Xijian Street to Shahe Town and Zhulong Town.(3) Optimize the village construction land pattern according to \u0026quot;optimization concept- -scale prediction- -simulated zoning\u0026quot;; optimize the layout of the villages in the central cluster area and economic development conditions.\u003c/p\u003e\n\u003cp\u003e\u003cem\u003e4.2. Discussion\u003c/em\u003e\u003c/p\u003e\n\u003cp\u003eAt present, the research on construction land focuses on the suitability evaluation, conservation and intensive evaluation, and remediation potential, and has relatively few studies on the suitability evaluation and optimization simulation of village construction land. In this study, 49 villages in the jurisdiction of Chuzhou city, Anhui Province, a typical urban-rural fringe area, were selected to study the optimization of village construction land pattern, verify the rationality and scientificity of this study, and the number and scale of village construction land\u003csup\u003e[13-14]\u003c/sup\u003ePattern optimization\u003csup\u003e[15,23]\u003c/sup\u003eAnd control strategy\u003csup\u003e[1,3]\u003c/sup\u003eAnd other related existing research, as well as the coordination of urban and rural construction land and other aspects of further deepening research\u003csup\u003e[29-30]\u003c/sup\u003eAt the same time, it is of great significance to the development of village planning practice in the new period. At the same time, the village construction land suitability evaluation index system construction mainly in natural conditions, traffic location, social and economic indicators is given priority to, for rural local culture, villagers behavior will, regional development planning policy implementation consider less, and according to different areas to build suitable for village construction land suitability evaluation index system to continue to deepen research. To sum up, the field should focus on the next research, from the solid theory level, the village\u0026apos;s actual development as the guidance, considering the policy system, ecological environment, economic development, the villagers will, local culture and other factors, strengthen the construction of village land theory research, for the village national spatial planning practice work to provide more reasonable plan; From the level of research scale, we try to explore the specific research points of village construction land, such as basic investigation, comprehensive evaluation, planning, layout and utilization, renovation and dynamic supervision of village construction land, from the perspective of different village construction land types and the subject of villagers and plot spots.\u003c/p\u003e"},{"header":"Declarations","content":"\u003cp\u003e\u003cstrong\u003eAuthor Contributions:\u003c/strong\u003e Conceptualization, Y.M.(Yishi Mi) and S.F.(Shuping Fan); Data curation, X.G.(Xin Gao), Y.Z.(Yuntao Zhu) and Q.W.(Qi Wang); Formal analysis, S.F.(Shuping Fan) and Y.M.(Yishi Mi); Investigation, Y.M.(Yishi Mi), Y.L.(Yangbing Liu) and Q.W.(Qi Wang); Methodology, S.F.(Shuping Fan) and Y.M.(Yishi Mi); Project administration, Q.W.(Qi Wang), Y.L.(Yangbing Liu) and Z.S.(Zihao Su); Resources, Z.S.(Zihao Su); Software, Y.M.(Yishi Mi), X.G.(Xin Gao) and Y.Z.(Yuntao Zhu); Validation, S.F.(Shuping Fan); Writing\u0026mdash;original draft, Y.M.(Yishi Mi).; Writing\u0026mdash;review \u0026amp; editing, S.F.(Shuping Fan). All authors have read and agreed to the published version of the manuscript.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eFunding:\u0026nbsp;\u003c/strong\u003eThis research is supported by General Project of National Natural Science Foundation of China, grant number 71873003. Research Project of Social Science Innovation and Development of Anhui Province, grant number 2023CX523. Natural Resources Technology Project of Anhui Province, grant number 2024-KZ-5, Philosophy and Social Science Fund for Prosperity and Development of Anhui Agricultural University, grant number 2018zs12zd. Introduction and Stable Talent Project of Anhui Agricultural University, grant number yj2018-60. General Land Space Plan of Chuzhou City, grant number 2021-2035 support.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstitutional Review Board Statement:\u0026nbsp;\u003c/strong\u003eNot applicable.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eInformed Consent Statement:\u003c/strong\u003e Informed consent was obtained from all subjects involved in the study.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eData Availability Statement:\u003c/strong\u003e All data generated or analyzed during this study are included in this published article.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eConflicts of Interest:\u0026nbsp;\u003c/strong\u003eThe authors declare no conflict of interest.\u003c/p\u003e"},{"header":"References","content":"\u003col\u003e\n \u003cli\u003eZhang, H.; Zhou, E. 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Research on the grading method of construction land integration under the background of urban-rural integration [J]. \u003cem\u003eLand Science of China\u003c/em\u003e.\u003cstrong\u003e2021\u003c/strong\u003e,35 (04): 35-43.\u003c/li\u003e\n\u003c/ol\u003e"}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":true,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":false,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true},"keywords":"village construction land, suitability, optimization simulation, scale prediction, urban-rural fringe","lastPublishedDoi":"10.21203/rs.3.rs-4994781/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4994781/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003ePotential endowment and constraint bottom line are the core elements of evaluating the suitability of village construction land. The scientific and reasonable measurement of the suitability degree and its optimization simulation from the quantity, scale and spatial layout are necessary for demarcating the boundary of village construction land and the preparation and implementation of village planning. This study chooses typical combination of urban and rural Chuzhou in Anhui province jurisdiction 49 administrative villages for the research scope, builds a \"potential-constraint\" model under the framework of village construction land suitability evaluation index system and measures appropriate degree, further optimization simulation and differential control strategy, to guide the village construction land scientific and reasonable layout. The results show that: (1) the village collective income and land use intensity have a great impact on the potential of village construction land, The proportion of permanent basic farmland, the distance from the organized town and the population loss rate have a great impact on the binding force of village construction land; (2) The proportion of suitable, unsuitable and suitable areas of village construction land is 38.63%, 27.56% and 15.60% respectively, The overall distribution pattern of suitability is \" high in the east and southwest, South-Northeast Low \", Suitable areas are mainly Xijian Street, unsuitable areas are mainly Shiji Town, In the future, the village construction land will still be mainly expanded by Xijian Street to Shahe Town and Zhulong Town; (3) The eastern high-suitable area adopts the rural urbanization mode and optimizes the layout in a \"group\" style, The central low suitable area adopts the mode of \"teng village and land reduction\" and continuously improves the level of intensive land use, In the southwest, it is suitable for villages to form a \"central village\" layout mode based on location and economic development. Taking the adjustment of the quantity, scale, and spatial layout of village construction land in the urban and rural fringe as the main context and implementing the optimization simulation of village construction land under the mode of \"linking man and land together\", to provide theoretical exploration and technical support for the overall layout of urban and rural construction land and the delineation and implementation of \"three districts and three lines\" in village planning.\u003c/p\u003e","manuscriptTitle":"Evaluation and Optimization Simulation of Land Suitability for Village Construction in the Urban Rural Integration Zone - Empirical Test Based on 49 Administrative Villages in Chuzhou City, China","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-12-31 03:45:18","doi":"10.21203/rs.3.rs-4994781/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2024-11-11T04:30:45+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-11-07T08:31:22+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-11-04T08:34:14+00:00","index":"hide","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2024-11-02T19:35:11+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"24202223195891909598383167482729805716","date":"2024-10-25T23:25:30+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"27163270146448634665241297530468791769","date":"2024-10-22T03:59:57+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"293462826967145348258558455624818019803","date":"2024-10-21T17:13:02+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-10-07T14:36:05+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-10-07T14:23:29+00:00","index":"","fulltext":""},{"type":"editorInvited","content":"","date":"2024-09-11T03:24:34+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-09-09T09:49:04+00:00","index":"","fulltext":""},{"type":"submitted","content":"Scientific Reports","date":"2024-08-29T05:23:08+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"scientific-reports","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"scirep","sideBox":"Learn more about [Scientific Reports](http://www.nature.com/srep/)","snPcode":"","submissionUrl":"","title":"Scientific Reports","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Scientific Reports","inReviewEnabled":true,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"de24a994-7c3d-4b74-b059-bd45241d0b2e","owner":[],"postedDate":"December 31st, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[{"id":40065875,"name":"Biological sciences/Ecology/Ecological modelling"},{"id":40065876,"name":"Biological sciences/Ecology/Ecosystem ecology"},{"id":40065877,"name":"Biological sciences/Ecology/Ecosystem services"}],"tags":[],"updatedAt":"2025-04-28T16:00:49+00:00","versionOfRecord":{"articleIdentity":"rs-4994781","link":"https://doi.org/10.1038/s41598-025-87034-3","journal":{"identity":"scientific-reports","isVorOnly":false,"title":"Scientific Reports"},"publishedOn":"2025-04-26 15:57:20","publishedOnDateReadable":"April 26th, 2025"},"versionCreatedAt":"2024-12-31 03:45:18","video":"","vorDoi":"10.1038/s41598-025-87034-3","vorDoiUrl":"https://doi.org/10.1038/s41598-025-87034-3","workflowStages":[]},"version":"v1","identity":"rs-4994781","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4994781","identity":"rs-4994781","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}