岷江中上游流域生态环境的遥感动态监测分析

Dynamic Monitoring of Ecological Environment of Minjiang Upriver by Remote Sensing

在国家 8 63项目 3 0 8课题“西部金睛行动”专题基础上 ,以岷江中上游生态环境遥感综合调查与评价为背景 ,结合林业、水资源等多学科的技术方法 ,探讨如何利用资源卫星遥感图像 ,结合 GIS实施快速、准确、经济的大范围生态环境调查 ,尤其是土地利用 /覆盖情况调查。并对岷江中上游生态环境 10年来的变化情况进行了调查和分析 ,解释了森林、土地、草地等土地利用情况发生变化的原因。通过引入空间信息技术如遥感的监测与系统地分析等 。

This paper describes the using of RS/GIS/GPS techniques in the environmental investigation of Minjiang upriver.With the help of forestry,water resource and agrology techniques and using remote sensing method can be expediently acquired some information such as ecological environment status,and the ecological change situation from 1990 to 2000 in Minjiang upriver is studied.At the end,some spatial analysis is made,the statistic result reveal a change between 1990 and 2000.According to some forestry study,the main reason is discussed to interpret these large differences.Due to the combination of advance techniques and expert's experience,so the result is reliable and reasonable.