土壤2016，Vol.48Issue(4)：819-823,5.DOI:10.13758/j.cnki.tr.2016.04.028
模拟降雨条件下植被调控坡面水沙输出过程研究
Study on Runoff and Erosion Process of Vegetation Slope Under Simulated Rainfall Conditions
摘要
Abstract
In this paper, the process of water and sediment output in the slope 10° and slope 20° with rainfall intensity 30 mm/h under three kinds vegetation of trees, shrubs and herb (Broussonetia papyrifera, Vitex negundo, ryegrass) were studied through artificial rainfall simulation experiment. The results showed that the runoffs of runoff processes under all three vegetation covers were increased first and then trended to be stable, while the sediment yields were increased first, decreased secondly and then trended to be stabled, which showed Broussonetia papyrifera, Vitex negundo and ryegrass all had good regulation and control ability in runoff and sediment process. In reducing the runoff and sediment yield, ryegrass had best effect, followed by Broussonetia papyrifera and Vitex negundo. In the regulation of runoff flow velocity, the overall flow rate increased first and then trended stable, and the ability in regulating the runoff rate was in order of ryegrass>Vitex negundo>Broussonetia papyrifera.关键词
模拟降雨/植被/坡面/径流/泥沙Key words
Simulated rainfall/Vegetation/Slope/Runoff/Sediment分类
农业科技引用本文复制引用
侯沛轩,孙佳美,余新晓,李瀚之..模拟降雨条件下植被调控坡面水沙输出过程研究[J].土壤,2016,48(4):819-823,5.基金项目
国家自然科学基金项目(41430747)和国家林业局林业公益性行业科研专项(20130430104)资助。 （41430747）
