植被因子对水土流失的影响  

The Impact of Plant Factor on Water and Soil Erosion

作　　者：刘洋[1] 李春阳[1] 

机构地区：[1]中国科学院成都生物研究所

出　　处：《世界科技研究与发展》2005年第5期89-93,共5页World Sci-Tech R&D

基　　金：国家973项目"西部典型区域森林植被对农业生态环境的调控机理"(项目号:G2002CB111504)。

摘　　要：通过对国内外研究的总结以及植被对水土流失影响机理的分析得出,植被对水土流失有抑制的作用。在对水土流失进行预测和评价的过程中,作为诸多影响因子之一的植被因子,不论是在小尺度的试验研究中还是借助“3S”技术的大尺度研究中都是不可忽视的。大尺度研究所涉及的各种模型中,USLE模型及其各种修正形式是一种被广泛接受和应用的有效工具。The conclusion that plant can retard water and soil erosion is drawn according to analysis upon the correlative studies in the world as well as the mechanism in which plant effects water and soil erosion, As one of the impacting factors, plant factor plays such an essential role that can not be neglected during the anticipation and evaluation of water and soil erosion, both in fine-scale experiments and coarse-scale studies that based on the “3S” techniques. Among many kinds of models that are related to coarse scale, USLE model and its various revisory forms are accepted and applied diffusely.

关 键 词：植被因子 水土流失 尺度 水土流失 植被因子 USLE模型 “3S”技术 影响机理 影响因子 试验研究 有效工具 大尺度 

分 类 号：S157.1[农业科学—土壤学] S812.2[农业科学—农业基础科学]