Eucalyptus Productivity Increase in China Comes From Newly Afforested Plantations

Eucalyptus Productivity Increase in China Comes From Newly Afforested Plantations | 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 Research Eucalyptus Productivity Increase in China Comes From Newly Afforested Plantations Wei Chen, Qihui Zheng, Yongfeng Dang, Tetsuro Sakai This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-81375/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Eucalyptus trees are a major fast-growing species in southern China. The ecological problems associated with constantly developing new Eucalyptus plantations have been the focus of extensive debate. In this study, we used spatial analysis and geostatistical methods along with four continuous national forest resource inventories and meteorological data to analyze dynamic changes in the distribution of Eucalyptus plantations in China. The productivity levels of Eucalyptus plantations were compared at different time periods by measuring annual mean productivity in permanent sample plots to provide baseline data related to the scientific management of Eucalyptus plantations. Results showed that the area of Eucalyptus plantations increased constantly in China from 1998 to 2013, expanding from 60.7 × 10 4 hm 2 in 1998 to more than 445.5 × 10 4 hm 2 in 2013. The productivity of Eucalyptus plantations was positively correlated with temperature and rainfall, but negatively correlated with elevation. However, these changes did not necessarily indicate an improvement in the management quality of Eucalyptus plantations, because they were mainly caused by an increased in the proportion of newly reclaimed areas for Eucalyptus afforestation and the constantly decreasing area of original Eucalyptus plantations, to which sufficient attention must be given. Forestry Eucalyptus forest productivity forest resource inventory geographic distribution China Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-81375","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research","associatedPublications":[],"authors":[{"id":2761012,"identity":"2684878a-5505-4494-b10c-b98482feea14","order_by":0,"name":"Wei Chen","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA30lEQVRIiWNgGAWjYDACCQjJw8/ewGAAZDE2EKtFRrLnMGlaGGwMbiSDGYS18M9uPvaYp8KCx+Dm+wPFPAw2shsOMD97gNeSO8fSjXnOSPBI3k5mMOZhSDPecIDN3ACfFgOJHDPp3DYJHj6IlsOJGw7wsEng15L/TTr3nwQPw83DIC3/idGSwyad2yDBI3CDGaTlAGEtEjfSzKT/HAP6pSfZwHCOQbLxzMNsZni18M9IfiY5o6bOnp/94DODNxV2sn3Hm5/h1YIM2AzAkclMrHqQ2gckKB4Fo2AUjIIRBACJ3T/4wzWuxwAAAABJRU5ErkJggg==","orcid":"https://orcid.org/0000-0003-0303-3978","institution":"Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China","correspondingAuthor":true,"submittingAuthor":false,"prefix":"","firstName":"Wei","middleName":"","lastName":"Chen","suffix":""},{"id":2761013,"identity":"8d68f2d3-ae08-45b1-98f2-774777327a3f","order_by":1,"name":"Qihui Zheng","email":"","orcid":"","institution":"Tianjin University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Qihui","middleName":"","lastName":"Zheng","suffix":""},{"id":2761014,"identity":"fba3c685-4545-4430-b4a7-f4ba279f7b99","order_by":2,"name":"Yongfeng Dang","email":"","orcid":"","institution":"National Forestry and Grassland Administration","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Yongfeng","middleName":"","lastName":"Dang","suffix":""},{"id":2761015,"identity":"bba4deb5-54f4-4301-a4f4-55a150d0d3c3","order_by":3,"name":"Tetsuro Sakai","email":"","orcid":"","institution":"Kyoto University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Tetsuro","middleName":"","lastName":"Sakai","suffix":""}],"badges":[],"createdAt":"2020-09-21 10:39:30","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-81375/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-81375/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":2679924,"identity":"6ac1d843-c6ea-4667-b6b9-88666b511db1","added_by":"auto","created_at":"2020-09-29 13:31:37","extension":"jpg","order_by":1,"title":"Figure 1","display":"","copyAsset":false,"role":"figure","size":23040,"visible":true,"origin":"","legend":"Average of annual mean productivity of Eucalyptus sample plots included in all the four national inventories (5th to 8th)","description":"","filename":"Fig1.JPG","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1/Fig1.JPG"},{"id":2679925,"identity":"ed2c65ec-1889-4994-9a12-e2093a5a0bf9","added_by":"auto","created_at":"2020-09-29 13:31:37","extension":"jpg","order_by":2,"title":"Figure 2","display":"","copyAsset":false,"role":"figure","size":25917,"visible":true,"origin":"","legend":"Frequency distribution of annual mean productivity of Eucalyptus sample plots included in all the four national inventories (5th to 8th)","description":"","filename":"Fig2.JPG","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1/Fig2.JPG"},{"id":2679926,"identity":"14b168db-b54c-4671-a952-49943ad1dfe1","added_by":"auto","created_at":"2020-09-29 13:31:37","extension":"jpg","order_by":3,"title":"Figure 3","display":"","copyAsset":false,"role":"figure","size":126688,"visible":true,"origin":"","legend":"Distribution maps of Eucalyptus productivity obtained by geospatial interpolation\n(a. 1998; b. 2003; c. 2008; d. 2013)\n\nNote: The designations employed and the presentation of the material on this map do not imply the expression of any opinion whatsoever on the part of Research Square concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. This map has been provided by the authors.","description":"","filename":"Fig3.JPG","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1/Fig3.JPG"},{"id":2679927,"identity":"06070c71-db97-4efd-8b42-93414a156652","added_by":"auto","created_at":"2020-09-29 13:31:37","extension":"jpg","order_by":4,"title":"Figure 4","display":"","copyAsset":false,"role":"figure","size":31263,"visible":true,"origin":"","legend":"Area distribution of Eucalyptus plantations at different grades of elevation (graded from low to high elevation), temperature, and rainfall","description":"","filename":"Fig4.JPG","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1/Fig4.JPG"},{"id":2679928,"identity":"d48a8c4e-a29b-4c80-a88a-0e51e0c9f3ac","added_by":"auto","created_at":"2020-09-29 13:31:37","extension":"jpg","order_by":5,"title":"Figure 5","display":"","copyAsset":false,"role":"figure","size":26856,"visible":true,"origin":"","legend":"The area distribution of Eucalyptus and Pinus massoniana in Guangxi Province in different time periods","description":"","filename":"Fig5.JPG","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1/Fig5.JPG"},{"id":2679929,"identity":"f49f908c-1e69-4587-a74e-e864203d28da","added_by":"auto","created_at":"2020-09-29 13:31:38","extension":"jpg","order_by":6,"title":"Figure 6","display":"","copyAsset":false,"role":"figure","size":25404,"visible":true,"origin":"","legend":"The area distribution of Eucalyptus and Pinus massoniana in Guangdong Province in different time periods","description":"","filename":"Fig6.JPG","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1/Fig6.JPG"},{"id":13536233,"identity":"6835d6f4-dd6f-410d-9ec9-d31687b7a5aa","added_by":"auto","created_at":"2021-09-17 01:31:38","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":787022,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscriptsubmissionrevision.pdf","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1_covered.pdf"},{"id":2679930,"identity":"542eade1-e78f-4e4d-b9d7-a7e886a8b6b0","added_by":"auto","created_at":"2020-09-29 13:31:42","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1004884,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscriptsubmissionrevision.pdf","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1_stamped.pdf"},{"id":2679923,"identity":"e68e5f07-c849-4bbb-9d91-6198c382c8ca","added_by":"auto","created_at":"2020-09-29 13:31:37","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":799909,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscriptsubmissionrevision.pdf","url":"https://assets-eu.researchsquare.com/files/rs-81375/v1/Manuscriptsubmissionrevision.pdf"}],"financialInterests":"","formattedTitle":"\u003cp\u003eEucalyptus Productivity Increase in China Comes From Newly Afforested Plantations\u003c/p\u003e","fulltext":[{"header":"Full Text","content":"\u003cp\u003eThis preprint is available for \u003ca href='/article/rs-81375/latest.pdf' target='_blank'\u003edownload as a PDF\u003c/a\u003e.\u003c/p\u003e"}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Eucalyptus, forest productivity, forest resource inventory, geographic distribution, China","lastPublishedDoi":"10.21203/rs.3.rs-81375/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-81375/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003e\u003cem\u003eEucalyptus\u003c/em\u003e trees are a major fast-growing species in southern China. The ecological problems associated with constantly developing new \u003cem\u003eEucalyptus\u003c/em\u003e plantations have been the focus of extensive debate. In this study, we used spatial analysis and geostatistical methods along with four continuous national forest resource inventories and meteorological data to analyze dynamic changes in the distribution of \u003cem\u003eEucalyptus\u003c/em\u003e plantations in China. The productivity levels of \u003cem\u003eEucalyptus\u003c/em\u003e plantations were compared at different time periods by measuring annual mean productivity in permanent sample plots to provide baseline data related to the scientific management of \u003cem\u003eEucalyptus\u003c/em\u003e plantations. Results showed that the area of \u003cem\u003eEucalyptus\u003c/em\u003e plantations increased constantly in China from 1998 to 2013, expanding from 60.7 × 10\u003csup\u003e4\u003c/sup\u003e hm\u003csup\u003e2\u003c/sup\u003e in 1998 to more than 445.5 × 10\u003csup\u003e4\u003c/sup\u003e hm\u003csup\u003e2\u003c/sup\u003e in 2013. The productivity of \u003cem\u003eEucalyptus\u003c/em\u003e plantations was positively correlated with temperature and rainfall, but negatively correlated with elevation. However, these changes did not necessarily indicate an improvement in the management quality of \u003cem\u003eEucalyptus\u003c/em\u003e plantations, because they were mainly caused by an increased in the proportion of newly reclaimed areas for \u003cem\u003eEucalyptus\u003c/em\u003e afforestation and the constantly decreasing area of original \u003cem\u003eEucalyptus\u003c/em\u003e plantations, to which sufficient attention must be given.\u003c/p\u003e","manuscriptTitle":"Eucalyptus Productivity Increase in China Comes From Newly Afforested Plantations","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2020-09-29 13:31:31","doi":"10.21203/rs.3.rs-81375/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"40bd2b47-9fed-4251-a636-d10a58b3d2c2","owner":[],"postedDate":"September 29th, 2020","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":634327,"name":"Forestry"}],"tags":[],"updatedAt":"2020-12-07T22:52:21+00:00","versionOfRecord":[],"versionCreatedAt":"2020-09-29 13:31:31","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-81375","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-81375","identity":"rs-81375","version":["v1"]},"buildId":"rHA-KDH7Qsr4HCuvH75dn","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}