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Dynamic monitoring on land cover in loess hilly and gully area by the methods of RS and GIS
Authors
刘京
常庆瑞
张晓萍
杨勤科
Publication date
1 January 2003
Publisher
Abstract
应用遥感与GIS相结合的方法 ,对陕北黄土高原地区的数字影像进行人 机交互的屏幕解译 ,得到 1990年、2 0 0 0年的土地利用 /覆盖数字地图 ,以及面积统计结果 .分析表明 ,近 10年来该地区建筑和工交用地逐年扩大 ,耕地面积保持稳定 ,果园面积显著增加 ,人工林地和森林覆盖率有较大幅度提高 ,荒野地占地比重下降 ,区域生态环境质量得到明显改善
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Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources
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oai:ir.iswc.ac.cn/:361005/2065
Last time updated on 21/09/2018