After the peakrunoff rate, sediment concentration decreases and variation amplitude reduces.
峰值径流流量后，含沙量降低，表现为变化幅度小的低含沙量特征。
2
Wetland design can moderate peak flow rate and volume of runoff discharge and sediment deposition during precipitation events.
湿地项目可以缓和雨洪峰值流率及降水过程中的径流排放量和沉淀量。
3
The result shows that the peak of pollutant concentration is ahead of or synchronous with that of runoff, and heavy pollution occurs in initial period of storm runoff.