A new land-use status classification system is developed based on the first land-use status survey of Tibet Autonomous Region (TAR) to be applicable for mapping land-use status in Tibet with different spatial scales of remote sensing data from aerial photograph to orbit satellite. It is a hierarchically based three-level classification system and contains 8 level I, 34 level II, and 12 level III. Land-use status map for the Lhasa area located at central Tibetan Plateau is made based on the color infrared aerial photographs and Landsat Thematic Mapper (TM) using proposed classification system. Results show that in the Lhasa area the grassland covers the largest area extent with 71.48% of total land area, followed by unused land (16.88%) and water body (5.25%). Other land-use types account for less than 4%. Among these, cultivated land is 70021.72 ha., covering 2.37% of total land area, and is distributed in all counties except Damshung County in the north.
KeywordsLand-use status land-use classification system Lhasa area Central Tibetan Plateau
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