基于ArcView的流域河网特征自动提取

在流域水资源管理GIS系统中，常需要进行流域河网水系和流域河网特征的提取，它是水文建模所必需的基础数据。目前常用ArcGIS来完成建模与提取。由于ArcGIS系统庞大复杂。本文提出利用ArcView及其扩展模块Spatial Analyst和水文分析模块Hydrology来完成流域水系其河流网络特征的提取方法，并进行了实验，成功地提取了湘江流域河网水系和流域特征。

Stream network and feature automatically extract based on ArcView

In GIS system of water resources management, it is often necessary for getting the stream network and stream feature, as it is the basic data for hydrological modeling. Currently used ArcGIS to complete modeling and extraction. Since ArcGIS is a large and complex system, this paper presents a method of using ArcView and its extended Spatial Analyst module and hydrological analysis module to extract stream network and feature. An experiment were carried out successfully extracted the Xiangjiang River stream network and featrure.