Study on the Spatial-Temporal Evolution and Influencing Factors of the Synergistic Efficiency of Reducing Pollution and Carbon in Beijing-Tianjin-Hebei and Surrounding Areas

Study on the Spatial-Temporal Evolution and Influencing Factors of the Synergistic Efficiency of Reducing Pollution and Carbon in Beijing-Tianjin-Hebei and Surrounding Areas | 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 Article Study on the Spatial-Temporal Evolution and Influencing Factors of the Synergistic Efficiency of Reducing Pollution and Carbon in Beijing-Tianjin-Hebei and Surrounding Areas Zilun Lin This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7311354/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 Under the background of "double carbon '', it is of great practical significance to study the spa-tial-temporal evolution of the synergistic effect of reducing pollution and carbon in Bei-jing-Tianjin-Hebei and surrounding areas and its influencing factors, to promote the green transi-tion and realize the overall goal of the coordinated development of pollution reduction and carbon reduction. Based on"2 + 36" urban panel data from 2007–2022, the entropy weight method and cou-pling coordination model were used to evaluate the synergistic effects of pollution reduction and carbon reduction, and spatial autocorrelation analysis and kernel density method were applied to analyze the spatio-temporal evolution characteristics and coupling coordination of carbon and pollutant emissions, respectively. Using the spatial Dubin model, the factors affecting urban pollu-tion and carbon reduction, and the level of spatial spillover are discussed. The results show that (1) the "2 + 36" cities' pollutant emissions increase continuously, while carbon emissions rise slowly and then rapidly fall respectively. The synergistic effects of pollution and carbon reduction show a trend of continuous decline. (2) The degree of synergy "2 + 36" shows a trend of continuous decline, and since 2012, it has shown a “general decline and local rise", with significant spatial heterogeneity. (3) From 2007 to 2022, industrial structure, the input of science and technology, and the level of con-sumption of residents were the key factors in promoting the coordinated development of local pollution reduction and carbon reduction, and the spatial spillover effect was even more noticeable. The negative impacts of productivity level, green technologies, economic size, and urbanization rate on regional synergies in pollution reduction and carbon reduction are gradually strengthening. In the context of economic transformation, urbanization, and consumption polarization, it was nec-essary to optimize exchanges and cooperation, refine policy initiatives, and work together to im-prove environmental governance. Beijing-Tianjin-Hebei and surrounding areas synergistic effect of pollution and carbon reduction spatial-temporal evolution spatial Dubin model Full Text Additional Declarations No competing interests reported. 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. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-7311354","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":497970019,"identity":"0f4c3784-31cc-411d-8829-1dd7dcd6b5a0","order_by":0,"name":"Zilun Lin","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAyklEQVRIiWNgGAWjYBACNoaDjQ8+VNjIyfM3HyBOCx/j4WbDGWfSjA1nHEsgTosc8/E2Yd62w4kNB3IMiHQY28E2Bp4zh40ZG858vPGGwU5Ot4GQFp6DbQ8kKtLl2Jl7N1vOYUg2NjtASIvEwXYDgzPWQFvObpPmYTiQuI2gFvmHbRKJbcwgvzwjUgvDwTaJg23OIC1sRGtpNmyABLKx5RwDIvwi33D84eM/kKh8eONNhZ0cQS0oQIKHyKhB1kKqjlEwCkbBKBgRAAAJvkkL5aZfNQAAAABJRU5ErkJggg==","orcid":"","institution":"","correspondingAuthor":true,"prefix":"","firstName":"Zilun","middleName":"","lastName":"Lin","suffix":""}],"badges":[],"createdAt":"2025-08-06 15:38:15","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-7311354/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-7311354/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":89235832,"identity":"d6276ece-c3b3-41ab-ab95-da664702a5f7","added_by":"auto","created_at":"2025-08-17 15:31:46","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":916465,"visible":true,"origin":"","legend":"","description":"","filename":"StudyontheSpatialTemporalEvolutionandInfluencingFactorsoftheSynergisticEfficiencyofReducingPollutionandCarboninBeijingTianjinHebeiandSurroundingAreas.pdf","url":"https://assets-eu.researchsquare.com/files/rs-7311354/v1_covered_2ec25f59-5b70-4123-aaf0-33880f851905.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Study on the Spatial-Temporal Evolution and Influencing Factors of the Synergistic Efficiency of Reducing Pollution and Carbon in Beijing-Tianjin-Hebei and Surrounding Areas","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":true,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"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":"Beijing-Tianjin-Hebei and surrounding areas, synergistic effect of pollution and carbon reduction, spatial-temporal evolution, spatial Dubin model","lastPublishedDoi":"10.21203/rs.3.rs-7311354/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7311354/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eUnder the background of \"double carbon '', it is of great practical significance to study the spa-tial-temporal evolution of the synergistic effect of reducing pollution and carbon in Bei-jing-Tianjin-Hebei and surrounding areas and its influencing factors, to promote the green transi-tion and realize the overall goal of the coordinated development of pollution reduction and carbon reduction. Based on\"2\u0026thinsp;+\u0026thinsp;36\" urban panel data from 2007\u0026ndash;2022, the entropy weight method and cou-pling coordination model were used to evaluate the synergistic effects of pollution reduction and carbon reduction, and spatial autocorrelation analysis and kernel density method were applied to analyze the spatio-temporal evolution characteristics and coupling coordination of carbon and pollutant emissions, respectively. Using the spatial Dubin model, the factors affecting urban pollu-tion and carbon reduction, and the level of spatial spillover are discussed. The results show that (1) the \"2\u0026thinsp;+\u0026thinsp;36\" cities' pollutant emissions increase continuously, while carbon emissions rise slowly and then rapidly fall respectively. The synergistic effects of pollution and carbon reduction show a trend of continuous decline. (2) The degree of synergy \"2\u0026thinsp;+\u0026thinsp;36\" shows a trend of continuous decline, and since 2012, it has shown a \u0026ldquo;general decline and local rise\", with significant spatial heterogeneity. (3) From 2007 to 2022, industrial structure, the input of science and technology, and the level of con-sumption of residents were the key factors in promoting the coordinated development of local pollution reduction and carbon reduction, and the spatial spillover effect was even more noticeable. The negative impacts of productivity level, green technologies, economic size, and urbanization rate on regional synergies in pollution reduction and carbon reduction are gradually strengthening. In the context of economic transformation, urbanization, and consumption polarization, it was nec-essary to optimize exchanges and cooperation, refine policy initiatives, and work together to im-prove environmental governance.\u003c/p\u003e","manuscriptTitle":"Study on the Spatial-Temporal Evolution and Influencing Factors of the Synergistic Efficiency of Reducing Pollution and Carbon in Beijing-Tianjin-Hebei and Surrounding Areas","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-08-13 09:41:18","doi":"10.21203/rs.3.rs-7311354/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":"db3f0e14-2f68-499a-b0c8-f3da0e2ea620","owner":[],"postedDate":"August 13th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2025-08-17T15:23:39+00:00","versionOfRecord":[],"versionCreatedAt":"2025-08-13 09:41:18","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7311354","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7311354","identity":"rs-7311354","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}