开发建设新增土壤流失后评估方法研究  

Study on New Post Evaluation Method for Soil and Water Loss

作　　者：蔺明华[1] 薛小丁[1] 马宁[2] 

机构地区：[1]黄河水利委员会晋陕蒙接壤地区水土保持监督局,陕西榆林719000 [2]黄河水利委员会黄河上中游管理局,陕西西安710021

出　　处：《人民黄河》2006年第2期57-58,60,共3页Yellow River

基　　金：水利部水利技术开发基金资助项目

摘　　要：以天然降雨、人工降雨、放水冲刷等试验研究成果为基础,结合典型区域开发建设新增土壤流失分析的研究成果,以降雨侵蚀力、土壤抗冲性和地面坡度为主要因子,建立了用年降雨资料和次降雨资料计算土壤侵蚀模数的数学模型和开发建设新增土壤流失量的计算方法。所建模型和方法不仅适用于典型研究区域,而且也适用于黄河中游地区。The paper establishes a mathematical model for calculating soil erosion modulus and a method for calculating new soil loss by using annual rainfall data and individual rainfall data,taking the outcomes of tests and study of natural rainfall,artificial rainfall and washout as a basis,rainfall erosion force,soil resistance to erosion and ground slope as main factors and combining with the study on new soil loss in typical regional development and construction.The model and method are not only applicable to typical study regions,but also to the middle reaches area of the Yellow River.

关 键 词：开发建设 降雨侵蚀力 土壤抗冲性 新增土壤流失 后评估方法 

分 类 号：S157.1[农业科学—土壤学]