{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,25]],"date-time":"2025-12-25T07:20:19Z","timestamp":1766647219676,"version":"build-2065373602"},"reference-count":55,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2020,4,9]],"date-time":"2020-04-09T00:00:00Z","timestamp":1586390400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Strategic Priority Research Program of Chinese Academy of Sciences","award":["No. XDA19030304"],"award-info":[{"award-number":["No. XDA19030304"]}]},{"DOI":"10.13039\/501100004739","name":"Youth Innovation Promotion Association CAS","doi-asserted-by":"publisher","award":["No. 2017089"],"award-info":[{"award-number":["No. 2017089"]}],"id":[{"id":"10.13039\/501100004739","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"the National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["No. 41571487"],"award-info":[{"award-number":["No. 41571487"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the CRSRI Open Research Program","award":["No. CKWV2016388\/KY"],"award-info":[{"award-number":["No. CKWV2016388\/KY"]}]},{"name":"Sub-projects of the task and strategic pilot science and technology project of the Chinese academy of sciences (category A) : Construction and problem diagnosis analysis of spatial development database in Hubei and Hunan Provinces","award":["No. XDA23100201"],"award-info":[{"award-number":["No. XDA23100201"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJGI"],"abstract":"<jats:p>Current land cover research focuses primarily on spatial changes in land cover and the driving forces behind these changes. Among such forces is the influence of policy, which has proven difficult to measure, and no quantitative research has been conducted. On the basis of previous studies, we took Hubei Province as the research area, using remote sensing (RS) images to extract land cover change data using a single land use dynamic degree and a comprehensive land use dynamic degree to study land cover changes from 2000 to 2015. Then, after introducing the Baidu Index (BDI), we explored its relationship with land cover change and built a tool to quantitatively measure the impact of changes in land cover. The research shows that the key search terms in the BDI are \u2018cultivated land occupation tax\u2019 and \u2018construction land planning permit\u2019, which are closely related to changes in cultivated land and construction land, respectively. Cultivated land and construction land in all regions of Hubei Province are affected by policy measures with the effects of policy decreasing the greater the distance from Wuhan, while Wuhan is the least affected region.<\/jats:p>","DOI":"10.3390\/ijgi9040232","type":"journal-article","created":{"date-parts":[[2020,4,9]],"date-time":"2020-04-09T14:42:03Z","timestamp":1586443323000},"page":"232","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Correlation Studies between Land Cover Change and Baidu Index: A Case Study of Hubei Province"],"prefix":"10.3390","volume":"9","author":[{"given":"Yongqing","family":"Zhao","sequence":"first","affiliation":[{"name":"Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"},{"name":"Department of geological surveying and mapping engineering, Shanxi Institute of Energy, Yuci 030600, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rendong","family":"Li","sequence":"additional","affiliation":[{"name":"Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mingquan","family":"Wu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Remote Sensing Science, Aerospace Information Research Institute, Chinese Academy of Science, Beijing 100101, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"23604","DOI":"10.1038\/srep23604","article-title":"Fine particulate (PM2.5) dynamics during rapid urbanization in Beijing, 1973\u20132013","volume":"6","author":"Han","year":"2016","journal-title":"Sci. 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