摘要
溯源冲刷在土壤冲刷过程常常扮演着重要的角色 ,为加强推估土壤冲蚀量之精确度 ,对于溯源速度与溯源冲刷量之估算即为主要课题。本研究对于均匀砂以固定流量下进行溯源冲刷实验分析 ,由溯源冲刷形态与演变的观测 ,进而分析溯源速度和溯源冲刷量。结果显示 ,溯源冲刷速度与冲刷量和时间呈 1/ 2指数关系 ,由此结果将可供水利工程规划设计参考用。
Headcutting was noted as being a significant contributor to the soil erosion.Esti-mate of the migration of headcutting and erosion are criterion to assess the soil erosion.This research of laboratory measurements of headcutting migration on uniform sand.The resulting equation for headcutting model in1 /2 power of tis favorably compared with experimental data.
出处
《水土保持研究》
CSCD
1999年第3期120-129,共10页
Research of Soil and Water Conservation
