Rill erosion is one of the most important soil erosion processes on loess slope.It is of great significance to reveal the mechanism of soil erosion and sediment yield processes and control soil loss on hill slope by studying the variation processes of flow sediment concentration of rill.The simulation experiment on using combinatorial flume under rainfall condition indoors were done to investigate the changing process of flowing sediment concentration of rill on Loess Plateau slope.Results showed that:(1) C...