张家界市水土流失遥感调查与监测

Remote Sensing Investigation and Monitoring of Soil Erosion in Zhangjiajie City

以1975年MSS、2000年TM/ETM和2007年SPOT 5共3个时相卫星遥感数据为主要数据源,利用遥感图像处理和信息提取技术,结合土地利用和地形图等资料,提取张家界市水土流失状况信息,分析近32 a水土流失动态变化特征和规律,并提出治理水土流失措施的建议。

Taking satellite remote sensing data obtained in three different periods, i. e. , MSS （1975）, TM （2000） and SPOT -5 （2007） , as the main data, and using the technology of remote sensing image processing and information extraction, the authors extracted the soil erosion information of Zhangjiajie City in three different periods and analyzed characteristics and regularity of the dynamic changes from 1975 to 2007. In addition, some suggestions concerning the measures for harnessing soil erosion are put forward in this paper.