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《Geomatics World》 2017-01
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Spatial Distribution and Dynamic Changes of the Land Surface Water in China

SHI Yuchen;WANG Ronghua;Beijing University of Civil Engineering and Architecture, Department of Survey and Urban Spatial Information;Beijing Key Laboratory of Urban Spatial Information Engineering;  
Land surface water is one of the most important resources for human survival, and China is one of the countries with serious water shortage. Therefore, it is very important to understand the spatial distribution and variation of land surface water, and raise the people's consciousness of water conservation. Using the world's first dataset of land cover(Globe Land30) with 30 m spatial resolution in years of 2000 and 2010, this research reclassified and extracted the land surface water in China. Then according to the main watersheds and the iso-precipitation lines, the data of water area and waterarea of each basin and precipitation area are calculated and analyzed. The result showed that the spatial distribution of water resources in China is uneven, and from 2000 to 2010, the surface water area tends to decreased, especially in the Yangtze River basin.
【Fund】: 城市空间信息工程北京市重点实验室开放研究基金(2006202);; 北京建筑大学博士科研启动基金(331613012)资助
【CateGory Index】: P333;P237
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