长江科学院院报2018，Vol.35Issue(1)：47-51,5.DOI:10.11988/ckyyb.20161043
新型水溶性聚氨酯对紫色土坡面产流产沙的影响
Impact of New Water-soluble Polyurethane on Runoff and Sediment Yield on Purple Soil Slope
摘要
Abstract
In the purpose of investigating the effect of treating soil erosion of purple soil slope by new water-soluble polyurethane (W-OH),we analyzed the impact of W-OH of 5％ concentration on the processes of infiltration,runoff and erosion of purple soil slope under different rainfall intensities through indoor artificial rainfall experiment.We found that W-OH could remarkably enhance the erosion resistance of soil and reduce sediment yield on slope surface.Under test conditions of three different rainfall intensity (42,72,and 112mm/h),the sediment yield on W-OH treated group declined by 89.40％-97.43％,and sediment transport rate by 86.67％-97.45％ despite that runoff increased by 0.12-2.03 times compared with the control group.Under heavy rainfall(72 and 112 mm/h),the erodibility of W-OH treated soil reduced by 96.80％-97.41％.The conclusions offer theoretical basis and application guidance for the protection of purple soil slope.关键词
W-OH/紫色土/下渗/产流产沙/人工模拟降雨Key words
W-OH/purple soil/infiltration/runoff and sediment yield/artificial simulated rainfall分类
农业科技引用本文复制引用
朱秀迪,丁文峰,张冠华,李清溪,王强..新型水溶性聚氨酯对紫色土坡面产流产沙的影响[J].长江科学院院报,2018,35(1):47-51,5.基金项目
国家自然科学基金项目(41271303,40901135) （41271303,40901135）
水利部技术示范项目(SF-201601) （SF-201601）
