水土保持研究2018，Vol.25Issue(3)：11-16,6.
模拟降雨条件下岩溶坡耕地产流产沙特征
Characteristics of Runoff and Sediment on Karst Slopes Under Experiment Conditions of Simulated Rainfall
摘要
Abstract
Simulated rainfall in laboratory was used to study the effects of various rainfall intensities (63 mm/h and 100 mm/h) on the processes of runoff and sediment erosion on slopping lands in karst area under plough.The results are as followings.First,with the same rainfall intensity,the steeper a slope land is,the greater the sediment yield is.Second,with the same slope conditions,the greater the rainfall intensity is,the faster surface runoff and underground pore flow generate water.Third,with the same slope conditions,runoff was interflow based on under different rainfall intensities,and there is the positive correlation between runoff and rainfall intensity.As for the runoff,interflow is the most while the surface flow is the least.The above findings can provide the theory for the revelation on the principle of slope land soil water erosion in southeast karst region and control for the rock desertification.关键词
模拟降雨/坡耕地/产流时间/水文过程/产沙量Key words
simulated rainfall/slope farmland/runoff time/hydrological pathway/sediment yield分类
农业科技引用本文复制引用
方荣杰,朱晓锋,江斌伟,莫华涛..模拟降雨条件下岩溶坡耕地产流产沙特征[J].水土保持研究,2018,25(3):11-16,6.基金项目
国家自然科学基金(41301289,51369009) （41301289,51369009）
国家重点研究计划项(2016YFC0502403) （2016YFC0502403）
广西高等学校高水平创新团队及卓越学者计划项目(002401013001) （002401013001）
