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长江流域全图.pdf

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Watersheds of Asia and Oceania AS29 Yangtze Water Resources eAtlas Landcover Classes Forest Shrubland Savanna Grassland Permanent Wetland Cropland / Natural Vegetation Mosaic Urban / Industrial Barren Tundra Rivers Political Boundaries (Intl.) Political Boundaries (Natl.) Water Bodies Land Cover and Use Variables Percent Forest Cover: 6.3 Percent Grassland, Savanna and Shrubland: 28.2 Percent Wetlands: 3.0 Percent Cropland: 47.6 Percent Irrigated Cropland: 7.1 Percent Dryland Area: 2.0 Percent Urban and Industrial Area: 3.0 Percent Loss of Original Forest Cover: 84.9 1 Watersheds of Asia and Oceania AS29 Yangtze Water Resources eAtlas Basin Indicators Basin Area (sq. km): 1,722,193 Average Population Density (people per sq. km): 214 Number of Large Cities (100,000 people): 9 3 Water Supply per Person (1995)(m /year): 2,265 Degree of River Fragmentation: Medium Number of Dams (15m high) in Basin: 63 Number of Dams (150m high) in Basin:
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