sediment erosion and deposition

基本解释

In the confluent area, flow pattern is tangled, the changes of sediment erosion and deposition are big, and the condition of navigation is complex.
河流交汇口区域水流紊乱，泥沙冲淤变化大，通航条件极其复杂。
The whole process of water and sediment in watershed consist of water generation and concentration, sediment erosion, transportation and deposition.
全流域的水沙过程包括降雨产流、汇流的全过程，以及泥沙侵蚀、输移、沉积的不同运动形态。
As a result of in arid, semi-arid climatic zone, soil erosion and sediment deposition in Iran are very serious and have become one of main problems influencing national development.
伊朗地处干旱、半干旱气候带，土壤侵蚀严重，河流泥沙问题突出，已成为影响该国经济社会发展的主要环境问题之一。