长江三峡工程库区水土保持遥感动态监测及 GIS系统开发  

Dynamic Monitoring and GIS System Development for Soil and Water Conser- vation in Three Gorges Project Reservoir Area of Yangtze River

作　　者：周乐群[1] 孙长安[2] 胡甲均[3] 高改萍[1] 胡宗云[1] 杨岚[1] 

机构地区：[1]水利部长江勘测技术研究所 [2]水利部长江水利委员会长江流域水土保持监测中心站 [3]水利部长江水利委员会水土保持局

出　　处：《水土保持通报》2004年第5期49-53,共5页Bulletin of Soil and Water Conservation

摘　　要：长江三峡工程库区人类活动频繁,生态系统脆弱,水土流失较为严重。在三峡工程开工建设7a之后的2000年,运用遥感(RS)、地理信息系统(GIS)、全球卫星定位系统(GPS)、计算机网络技术等高新技术,采用DEM、影像正射校正、多源影像数据融合、多层次信息提取等技术方法,对整个库区20世纪80年代中期、世纪之末两期的土地利用状况、水土流失状况及水土保持治理等进行了全面的动态监测,并在此基础上利用ArcGIS软件平台开发完成。The reservoir area is subject to frequent human activities that are damaging the fragile balance of (ecosystem) dynamics. Remote sensing(RS), a geographical information system(GIS) and global positioning system(GPS) technology, as well as network techniques, have been utilized for the present research. A digital elevation model(DEM) was prepared; adjustment of orthographic reflection for images took place; interfusion of multi-source image data was undertaken; and multi-layer information was extracted. This work enabled comprehensive monitoring of soil and water conservation for the whole reservoir area from the middle 1980s to the late 1990s, and in 2000. Subsequently, the Three Gorges Project(TGP) commenced and has been ongoing for 7 years, and monitoring has included land use status, degree of vegetation cover, water loss and soil erosion(including wash erosion, mass erosion and mechanichal erosion), and their dynamic variations over the 15 year study period. On this basis, the concept of this paper has been developed with the aid of the ArcGIS software platform.

关 键 词：长江三峡工程库区 水土保持 动态监测 GIS系统 开发 

分 类 号：P208[天文地球—地图制图学与地理信息工程]