摘要
利用遥感图像宏观性强、快速、高效、经济和信息量丰富等优越性 ,对长江上游安宁河流域 1988年和 1999年两个时段的TM卫星图像进行详细解译 ,经野外实地调查 ,利用GIS空间分析功能和植被指数进行综合评价 ,分析对比了十年来生态环境和土壤侵蚀强度的动态变化情况 ,为建设长江上游生态屏障以及安宁河流域生态建设和环境保护提供科学依据。
Detail interpretation of TM satellite image in 1988 and 1999 for the Anning River basin by the use of remote sensing image in combination with field investigation and comprehensive assessment by the use of vegetation index and GIS space analysis as well as analysis of dynamic change in ecologic environment and soil erosion during the past decade provide scientific basis for reconstruction of ecologic barrier in the upper reaches of the Yangtze River and for ecologic environmental protection in the Anning River basin.
出处
《四川地质学报》
2003年第4期220-224,共5页
Acta Geologica Sichuan
