湖泊的数量与面积变化及其丰度和大小分布对区域及全球水资源、生物地球化学循环和气候变化的评估具有重要的意义.本研究利用Landsat数据,对青藏高原过去40年大于1 km2的湖泊数量与面积变化进行了详细的研究.同时,利用Landsat mosaic数据(空间分辨率为14.25 m),对青藏高原2000年面积大于0.001 km2的湖泊进行了详细的调查(图1).结果表明,在1970s,1990,2000和2010年,面积大 It is of great significance for the regional and global water resources, biogeochemical cycles and the assessment of climate change that the quantity and the area of ​​lakes change, their abundance, and size distribution.This study used Landsat data to study the spatial distribution of the Tibetan Plateau over 1 km2 over the past 40 years The number of lakes and the change of the area were studied in detail, and a detailed investigation of the lakes larger than 0.001 km2 in the Qinghai-Tibet Plateau in 2000 was conducted by using the Landsat mosaic data (spatial resolution of 14.25 m) (Figure 1) In the 1970s, 1990, 2000 and 2010, the area was large