Lakes in Tibetan Plateau Extraction from Remote Sensing and Their Dynamic Changes
青藏高原湖泊遥感信息提取及湖面动态变化趋势研究

The Tibetan Plateau has rich lake resources,which is the main distribution area of salinlakes.The authors extracted all lakes on the Tibetan Plateau from MSS,TM and ETM of Landsat based on RS and GIS.Through a statistical analysis of lake spatial data using ArcGIS,the authors detected the dynamic changes of lakes in the Tibetan Plateau from the 1970’s to 2000 or so in the light of time and space.Meanwhile,some representative large lakes in Qinghai and Tibet were selected to analyze the dynamic changes of every lake based on observed data and existing research results.According to the change types,the lakes in the Tibetan Plateau can be divided into three areas:southwest Tibet is a steady and atrophy area,north Qinghai is an expansion area,and most part of northeast Tibet and north Qinghai is a steady and expansion area.