水土保持及土壤侵蚀动态机制研究现状及存在问题  

Research Status and Existing Problems on Dynamic Mechanism of Soil and Water Conservation and Soil Erosion

作　　者：吴淑芳[1] 吴普特[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨陵712100

出　　处：《水土保持研究》2010年第2期37-40,共4页Research of Soil and Water Conservation

基　　金：教育部重点项目"黄土区基于CA模型的坡面径流动态模拟与水沙效应研究(109149)"

摘　　要：简要回顾了目前我国水土保持研究存在的问题,提出了以"地表径流调控"为主的水土保持技术措施和基于水动力学特性的侵蚀产沙机理研究方向和研究意义。系统总结了以"地表径流调控"为主的水土保持措施和减流减沙效应指标以及土壤侵蚀过程机理研究现状,探讨了径流调控及坡面流侵蚀动力过程中存在的主要问题以及亟待开展的研究。In this paper, problems currently existing in soil and water conservation researches in China were briefly reviewed, and meanwhile, soil and water conservation technical measures with ＇runoff regulation＇ as a main method and erosion sediment yield mechanism based on hydrodynamic characteristics and also re- search direction and significance were proposed. A systematic summary of soil and water conservation measures with ＇runoff regulation＇ as a main method, indexes for runoff and sediment reduction effects and mechanism of soil erosion process as well as a discussion of main problems existing in dynamic process of runoff regulation and overland flow erosion and research of urgent need were made.

关 键 词：径流调控 水土保持 土壤侵蚀 水动力学特性 

分 类 号：S157.1[农业科学—土壤学]