Based on the experiment of glass flume and the experiment of runoff scouring, the runoff velocity distribution on slope and the critical condition of rill erosion were researched.
通过玻璃水槽试验和径流冲刷试验，研究了坡面径流的流速分布和坡面细沟侵蚀发生的临界条件。
2
The scouring mechanism of each pattern is probed in the light of turbulent boundary layer and velocity of mass transport.