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近年来,卫星遥感技术被广泛应用于生态监测和地表覆盖调查。本文利用美国的LandSat7的ETM+卫星遥感数据,通过基于像元二分模型的植被覆盖度有效地监测了北京市20世纪90年代开展的重点绿化工程的实施情况,为政府有关部门提供了第一手的项目实施状况反馈信息。
In recent years, satellite remote sensing technology has been widely used in ecological monitoring and surface cover survey. Based on ETM + satellite remote sensing data of Landsat7 in the United States, this paper effectively monitors the implementation of key greening projects in Beijing in the 1990s through the vegetation coverage based on the pixel bipartite model, and provides the first-hand Project implementation status feedback information.