水土保持学报2013，Vol.27Issue(4)：53-57,5.
黄土坡面细沟侵蚀发育阶段的影响因素及其效应分析
Influencing Factors and Effect Analysis of Rill Erosion in Different Evolution Stages on Loess Slope
摘要
Abstract
Simulated rainfall experiment under different rainfall intensity,slope gradient and slope length,rill erosion process was conducted to divide the evolution stage and the influencing factors and its effect werestudied.The experimental results indicated that:The rill evolution processes were divided into four states,surface erosion,prototype of the rill,evolution of the rill and adjustment of the rill.The average sediment concentration would be bigger with the increase of slope gradient in the surface erosion stage.Compared with slope gradient,rainfall intensity had significant positive effects on the erosion rate.The proportion of sediment yield accounting for total erosion was maximum in the evolution stage of rill.There was a linear relationship between total erosion and the biggest erosion for 15 minutes in the evolution stage of rill.关键词
细沟侵蚀/发育阶段/含沙量/侵蚀速率Key words
rill erosion/ evolution stages/ sediment concentration/ erosion rate分类
农业科技引用本文复制引用
刘俊体,孙莉英,张学培,蔡强国..黄土坡面细沟侵蚀发育阶段的影响因素及其效应分析[J].水土保持学报,2013,27(4):53-57,5.基金项目
国家自然科学基金项目"坡面水蚀动力与细沟发育形态的相互作用机制及其影响因素"(41271304) （41271304）
"黄土坡面细沟侵蚀发育过程影响因素研究"项目(K318009902-1315) （K318009902-1315）
"东北典型黑土区坡耕地水土保持措施对地表径流及其侵蚀的调控和机理研究"项目(41001165) （41001165）
