中国水土保持科学2013，Vol.11Issue(1)：17-24,8.
流域侵蚀控制度的概念与计算方法——以王茂沟流域为例
Concept and calculation methods of erosion control degree: A case study of the Wangmaogou Watershed
摘要
Abstract
In this paper, the erosion control degree was defined as the ratio of the minimum possible soil erosion modulus and actual soil erosion modulus. The minimum possible soil erosion modulus was 2 573 t/(km2·a) ) under soil and water conservation measures in Wangmaogou Watershed. Based on the land use map in 2004, the actual soil erosion modulus of Wangmaogou Watershed was 7 413 t/( km2·a). According to the definition of the erosion control degree, the erosion control degree of Wangmaogou Watershed was at a lower level of 0. 35 , due to existed sloping farmland and less forestry area. Therefore, we suggested that erosion control degree should be as the evaluation indicator for the status of soil and water conservation.关键词
水土保持/修正通用土壤流失方程/容许土壤流失量/流域侵蚀控制度/黄土高原Key words
soil and water conservation/ revised universal soil loss equation/ soil loss tolerance/ erosion control degree/ Loess Plateau分类
农业科技引用本文复制引用
高海东,李占斌,李鹏,贾莲莲,宠国伟,徐国策..流域侵蚀控制度的概念与计算方法——以王茂沟流域为例[J].中国水土保持科学,2013,11(1):17-24,8.基金项目
国家重点基础研究发展计划(973计划)"黄河上游沙漠宽谷段风沙水沙过程及调控机理"(2011CB403302) （973计划）
国家自然科学基金"黄土区退耕生态系统植被根系行为特征与土壤水资源响应"(41271290) （41271290）
