摘要
文章选取太湖流域作为研究对象,采用1:25万中比例尺DEM作为基础数据,应用ESR I公司开发的ArcG IS地理信息系统软件进行流域水文特征提取,得到了研究区域水流流向、汇流栅格生成、河网水系、子流域边界等流域特征信息,经与标准河流水系特征对照,认为基于DEM提取的太湖流域水文特征信息是合理的,可作为基础信息,为太湖流域生态环境治理实践及理论研究提供数据支撑。
The paper studies how to use ArcGIS, a Geographic Information System software, to extract hydrological features of Taihu Lake Basin based on 1：250000 scale DEM. With analysis of AreGIS, the hydrological features about Taihu Lake Basin, such as flow direction, stream networks and other catchment properties are collected. Comparing with standard catchment properties, the hydrological features of Taihu Lake Basin extracted from DEM is reasonable, and can be used as basic information for the eco-environmental practice and theoretical research.
出处
《环境科学与管理》
CAS
2009年第5期138-142,共5页
Environmental Science and Management
关键词
DEM
流域水文分析
河网
特征提取
DEM
watershed hydrological analysis
stream network
feature extraction
