摘要
简要介绍了基于数字高程模型(DEM)自动提取流域特征的原理和方法,并以丹江口水源区治理区1∶5万DEM数据为基础,在Arc Map软件的水文模块(Hydrology)环境下,通过不同阈值参数的对比分析,对提取数字河网水系及流域边界、子流域归并等进行了探索,最后共提取小流域624个。
The paper introduced the principle and method of automatic extraction of watershed features based on DEM. It also explored the extraction of digital river network water system,watershed boundary and sub-basin merging and finally extracted 624 small watersheds based on 1 ∶ 50 000 DEM data of controlled area of Danjiangkou water source area,under the conditions of hydrology environment of ArcM ap software and through the comparative analysis of different threshold parameters.
出处
《中国水土保持》
2018年第5期51-54,共4页
Soil and Water Conservation in China
基金
湖北省水土保持监测站点空间优化布局研究(2012-218-006)
基于水土保持的湖北省平原湖区小流域划分技术研究(HBSLKY201711)
关键词
水土保持
DEM
小流域划分
丹江口水源区治理区
soil and water conservation
DEM
small watershed division
controlled area of Danjiangkou water source area
