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Spatiotemporal change patterns of urban lakes in China’s major cities between 1990 and 2015

International Journal of Digital Earth 2018年第11期11卷 1085-1102页

作者： Cong Xie Xin Huang Leiguang Wang Xing Fang Wenzhi Liao State Key Laboratory of Information Engineering in Surveying Mapping and Remote Sensing(LIESMARS)Wuhan UniversityWuhanPeople’s Republic of China School of Remote Sensing and Information Engineering Wuhan UniversityWuhanPeople’s Republic of China School of Forestry Southwest Forestry UniversityKunmingPeople’s Republic of China School of Geodesy and Geomatics Wuhan UniversityWuhanPeople’s Republic of China Department of Telecommunications and Information Processing Ghent UniversityGhentBelgium State Key Laboratory of Remote Sensing Science Institute of Remote Sensing and Digital EarthChinese Academy of SciencesBeijingPeople’s Republic of China

China has experienced unprecedented urbanization in the past decades,resulting in dramatic changes in the physical,limnological,and hydrological characteristics of lakes in urban ***,the spatiotemporal dynamics in distribution and abundance of urban lakes in China remain poorly ***,we characterized the spatiotemporal change patterns of urban lakes in China’s major cities between 1990 and 2015 using remote-sensing data and landscape *** results showed that the urban lake landscape patterns have experienced drastic changes over the past 25 *** total surface area of the urban lakes has decreased by 17,620.02 ha,a decrease of 24.22%,with a significant increase in the landscape fragmentation and a reduction in shape *** defined three lake-shrinkage types and found that vanishment was the most common lake-shrinkage pattern,followed by edge-shrinkage and tunneling in terms of lake ***,we also found that urban sprawl was the dominant driver of the lake shrinkage,accounting for 67.89%of the total area loss,and the transition from lakes to cropland was also an important factor(19.86%).This study has potential for providing critical baseline information for government decision-making in lake resources management and urban landscape design.

关键词： Urban expansion lake changes landscape pattern human activities

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