关键词: 土地覆被变化, GlobeLand30, 清江流域, 长江上游流域

Abstract: With the construction and electricity generation of hydropower stations in the upper Yangtze River and the Qingjiang River basins, the basins become important sensitive areas. In this paper, 30m-resolution imagine land cover data of GlobeLand30 in 2000 and 2010 developed by National Geomatics Center of China in 2014 were used to analyze the spatial distribution pattern, change rate, regional differences and change cause of main land types in the upper Yangtze River and the Qingjiang River basins between 2000 and 2010. It is discovered that, in general, the change rates of cropland and forest areas in the upper Yangtze River and the Qingjiang River basins are low with -0.09%,0.31% respectively; the change rates of glaciers and permanent snow, artificial land surface, wetlands and water bodies are higher, about -7.25%，22.9%，10.60%，2.87% respectively. The analysis objectively reflects the impact of climate warming, urban expansion, hydropower station construction, etc. on the upper Yangtze River and the Qingjiang River basins and the study results can provide basis for basin investigation, ecological assessment.

Key words: land cover change, GlobeLand30, Qingjiang River Basin, upper Yangtze River Basin