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河床演变是指河床形态在水流、泥沙作用下的变化过程。文中对河床近期演变状况、河床演变对国民经济各部门的影响、河床演变成因分析进行了论述。
River bed evolution refers to the river bed form in the water, sediment changes under the action. In this paper, the recent evolution of the riverbed, the evolution of riverbed on the impact of various sectors of the national economy, river bed evolution causes analysis are discussed.