基于DEM的水土流失型非点源污染估算  

Estimation on the Soil Erosion Type Non- point Pollution based on the DEM

作　　者：陈邦雄[1] 

机构地区：[1]广东省水利电力勘测设计研究院,广东广州510635

出　　处：《亚热带水土保持》2014年第4期18-22,26,共6页Subtropical Soil and Water Conservation

摘　　要：水土流失既是一种非点源污染形式,同时又是其他非点源污染物流失的载体。本文以大亚湾流域为例,利用数字高程模型(DEM)获取基础资料,通过类比国内外的相关研究成果而获得的输出系数模型参数,采用输出系数模型法估算水土流失型非点源污染负荷,探讨快速评估大尺度水土流失型非点源污染负荷的方法。Soil erosion is not only the non- point pollution form but also the carrier of other non- point pollutant losses. Taking the Daya Bay watershed as the example,the basic materials were gained by using the Digital Elevation Model（ DEM）. Based on the analogy of the related research findings at home and abroad,it was discussed the rapid appraisal method to the large scale soil erosion type non- point pollution load to get of the parameters of export coefficient model for the estimation of the soil erosion type non- point pollution load.

关 键 词：水土流失 非点源 数字高程模型(DEM) 输出系数模型 

分 类 号：S154.3[农业科学—土壤学]