采用国产 CBERS 影像为数据源开展陆生生境变化监测研究，文章以三峡大坝下游枝城区域为研究对象，运用最大似然、马氏距离、支持向量机等多宗分类方法，分别获取水、植被、建筑物等主要陆生生境要素，分析了三峡蓄水前后枝城区域陆生生境要素之间的变化关系。实验结果表明：从 2001 年至 2009 年期间枝城区间水体面积变化不大，三峡的初期蓄水对枝城区间的陆生生境变化影响不明显，成果说明国产的 CBERS 影像能够有效应用于获取中等尺度的陆生生境要素，能够有效分析生境要素的变化，为流域环境保护和城市规划研究提供信息支持。

Based on multi-temporal CBERS remotely sensed images of the Zhijiang area of the Yangtze River Basin, this paper obtains terrestrial environmental elements such as water taking, vegetation and structures separately by using Maximum likelihood classifier (MLC), Mahalanobis distance classifier and Support Vector Machine(SVM) ， and makes an analysis of the change relationship between the area's terrestrial environmental elements before and After the impoundment of the Three Gorges Reservoir. The results prove that the CBERS images can be used to gain terrestrial environmental elements in a middle size river basin and their change relations effectively, which would be an useful technical support on the basin 's environment protection and city planning.