摘要
金沙江下游是长江流域生态环境脆弱的地区之一,也是长江最大的泥沙产沙区。为准确了解金沙江下游的生态环境现状,运用"3S"技术,即遥感(RS)、地理信息系统(GIS)、全球卫星定位系统(GPS),采用影像正射校正、数据融合、影像信息提取等技术方法,对金沙江下游生态环境开展遥感监测,并在此基础上建设完成了金沙江下游生态环境GIS系统,为本区生态环境建设规划提供了决策依据。
Jinsha River downstream is one of the fragile ecological environmental areas along the Changjiang River and is also the biggest sand production area.In order to understand the ecological environment exactly in Jinsha River downstream,the authors adopt some technologies to develop the remote sensing monitoring,such as ＂3S＂ technology which including remote sensing（RS）,geographic information system（GIS） and global position system（GPS）,orthophotography rectification,data fusion,image information extraction,etc..On this basis,the ecological environment GIS is constructed completely.It provides a basis for making decision about ecological environment construction planning.
出处
《资源环境与工程》
2011年第2期148-151,共4页
Resources Environment & Engineering
关键词
金沙江
生态环境
遥感监测
3S技术
GIS系统
Jinsha River
ecological environment
remote sensing monitoring
3S technology
GIS
