西部山区泥石流对河滩地演变的地质环境效应——以云南省小江为例

Influence of debris flow on flood lands in western mountain area: a case study in Xiaojiang River, Yunnan

河滩地是西部山区的重要土地资源,绝大部分山区河滩地因泥石流而生,又因泥石流的后期作用而可能消亡。以云南省小江为例,指出泥石流对西部山区河滩地形成的正面效应,同时也分析了泥石流对河滩地的淤埋、淹没和冲毁等负面作用,为西部山区河滩地的开发利用和保护提供了依据。

Flood land is one of the major land resources in the western mountain area in China.Positive influences of debris flow on the formation of flood lands and negative influences such as burial,submersion and impulsion were analyzed for the Xiaojiang Basin,Yunnan Provice;Understanding of the double influences is important for cultivating and preserving the flood lands.