Abstract:

The growing history, geographical location,as well as the supply of plateau lakes are different,so that lakes have their own characteristics of the distribution and evolution process.The hydrological characteristics of lakes mainly depend on the regional topography and climatic conditions.This article analysed the characteristics of the lakes distribution in the YunnanGuizhou Plateau and the conditions of topography and climate in the lakes of the location based on RS and GIS spatial analysis method.The result showed that lakes in the area are mainly distributed in Sichuan and Yunnan.The number of lakes in two provinces almost equal,and the big and mediumsized lakes are mainly located in central and northwestern of Yunnan;big lakes are mainly distributed between 1000 m and 2000 m elevation,and the lakes area of this region counts for about 8556% of the total lakes area.The precipitation and potential evapotranspiration in lakeregion of Yunnan and Guizhou are generally higher than those in Sichuan.However,the condition of accumulating water in lakeregion of Sichuan is better.Its lakes are mainly distributed in the area where the difference between precipitation and potential evapotranspiration is 50 ~ 200 mm.For most lakes in Yunnan,the precipitation is less than the potential evapotranspiration.