植物根系提高土壤抗侵蚀性机理研究  

Mechanism of Plant Roots Improving Resistance of Soil to Concentrated Flow Erosion

作　　者：刘定辉[1] 李勇[1] 

机构地区：[1]中国农业科学院农业环境与可持续发展研究所

出　　处：《水土保持学报》2003年第3期34-37,117,共5页Journal of Soil and Water Conservation

基　　金：国家自然科学基金项目(40071054和90202005)资助

摘　　要：介绍了近10年来植物根系提高土壤抗侵蚀性机理研究进展。植物根系稳定表土层结构、提高土壤入渗性能和抗剪强度、增强土壤抗冲性的有效性机理是植被抵抗径流侵蚀动态过程及土壤侵蚀预报研究亟待加强的关键科学问题。This paper reviewed the research progress of plant roots on improving the resistance of soil to concentrated flow erosion over the last decade. The importance of plant roots in stabilizing soil structure, increasing soil permeability, and intensifying the resistance of soil to concentrated flow water is increasingly being recognized. However, few studies have been conducted according to the effectiveness of root systems of different of woody, shrubs and grasses species in reducing concentrated flow erosion on the larger scales. The further research in this respect is urgently needed for prediction and control of concentrated flow erosion associated with safely, economic, and environmental management strategies. 

关 键 词：植物根系 土壤抗侵蚀性 作用机理 表土层结构 土壤入渗性 抗剪强度 土壤侵蚀 

分 类 号：S157.433[农业科学—土壤学]