China's lakes at present:Number,area and spatial distribution

查看全文 作　　者：MA [1]RongHua;YANG [1]GuiShan;DUAN [1]HongTao;JIANG [1]JiaHu;WANG [1]SuMin;FENG [2]XueZhi;LI [3]AiNong;KONG [1]FanXiang;XUE [1]Bin;WU [1]JingLu;LI [1]ShiJie

机构地区：[1]State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;[2]Department of Geographic Information Science, Nanjing University, Nanjing 210093, China;[3]Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China

出　　处：《Science China Earth Sciences》索引2011年第54卷第2期,共7页

基　　金：supported by the National Special Basic Research Project (Gran No. 2006FY110600) 摘　　要：Based on 11004 satellite images from CBERS CCD and Landsat TM/ETM,changes in the spatial characteristics of all lakes in China were determined following pre-established interpretation rules.This dataset was supported by 6843 digital raster images(1:100000 and 1:50000),a countrywide digital vector dataset(1:250000),and historical literature.Comparative data were corrected for seasonal variations using precipitation data.There are presently 2693 natural lakes in China with an area greater than 1.0 km2,excluding reservoirs.These lakes are distributed in 28 provinces,autonomous regions and municipalities and have a total area of 81414.6 km2,accounting for-0.9% of China's total land area.In the past 30 years,the number of newly formed and newly discovered lakes with an area greater than 1.0 km2 is 60 and 131,respectively.Conversely,243 lakes have disappeared in this time period. 关键词：湖泊变化湖泊面积中国空间分布中巴地球资源卫星陆地卫星TM 〇平方技术手册

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China's lakes at present:Number,area and spatial distribution

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