急陡坡土壤侵蚀试验研究  

Research of Soil Erosion on Very Steep Slope

作　　者：李凤英[1] 何小武[1] 肖青亮[1] 刘和平[2] 

机构地区：[1]江西农业大学国土资源与环境学院,南昌330045 [2]北京师范大学地学与遥感科学学院,北京100875

出　　处：《水土保持学报》2009年第6期38-40,44,共4页Journal of Soil and Water Conservation

基　　金：国家自然科学基金项目(40771130)

摘　　要：随着各项开发建设项目的大力开展,人为地产生了大量>25°的急陡坡坡面,造成严重的土壤侵蚀。采用人工模拟降雨方法,进行了急陡坡对土壤侵蚀影响的试验研究。研究结果表明:随着坡度的增加,降雨产流的径流总量和流速随之减少;坡面的降雨侵蚀形式由径流侵蚀为主向击溅侵蚀为主转变,从而导致土壤侵蚀量的波动变化趋势。Along with the vigorously development of construction projects,a large number of very steep slopes （25°） are produced by human beings,on which resulting in serious soil erosion. The effects of very steep slope on soil erosion were studied by rainfall simulator. The results showed that runoff and flow velocity decreased with increasing slope gradient;the main form of soil erosion,which determines the amount of soil loss,changed from runoff erosion to splash erosion with increasing slope gradient.

关 键 词：急陡坡 坡度 土壤侵蚀 

分 类 号：S157.1[农业科学—土壤学]