Abstract
The wetlands of Tibet plateau have typical characteristics of highest elevation, largest area and most concentrated distribution. Tibetan Plateau Lake Group is one of the main five lake groups in China. TM images of 2000 and 2010 are analyzed by ERDAS and ARCGIS. And Landscape Ecology theory is applied to analyze the spatial and dynamic characteristics of Tibetan lake wetlands. The results show: there are 66643 lakes in 2000 and 54655 lakes in 2010, which means there have disappeared 11988 lakes. Xigaze and Lhokas lakes patches presented decrease trend. The lake wetland of Nagri has increased 3.32%.The lake wetland of Lhoka and Xigaze has decreased 7.37% and 3.52%. MPS, MPE, PSCov and PSSD indexes can reflect the lake wetland dynamic changes than other indexes. Tibetan Plateau is very sensitive to global cliamte change, espectially in Nagqu.
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