土壤侵蚀的3个基本动力学过程  

Three Basic Dynamics Processes of Soil Erosion

作　　者：刘青泉[1] 安翼[1] 

机构地区：[1]中国科学院力学研究所,北京100080

出　　处：《科技导报》2007年第14期28-37,共10页Science & Technology Review

基　　金：国家自然科学重点基金项目(10332050)

摘　　要：简要介绍了土壤侵蚀的基本特征,将土壤侵蚀过程概括为3个基本的动力学过程,即降雨导致的坡面产流过程、表面流对土壤颗粒的剥蚀过程,以及表面流的汇集和输沙过程。进一步对3个基本过程的基本内容和涉及的科学问题进行了分析和概括,并由此讨论了土壤侵蚀动力学研究的发展趋势。This paper simply introduced the basic characteristics of soil erosion on hillslopes, and summarized the three basic dynamics processes of soil erosion, including the process of runoff generation caused by rainfall, the process of sediment yield on hillslope by overland flow, and the process of runoff concentration and sediment transport on watersheds. Furthermore, the basic issues and key academic problems related to the three basic dynamics processes are analyzed summarily, and also the future trends of soil erosion dynamics are briefly discussed.

关 键 词：坡面流 土壤侵蚀 坡面流汇集 泥沙输移 动力学过程 

分 类 号：S157.1[农业科学—土壤学]