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《Pure and Applied Geophysics》2005,162(12):2577-2581

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The construction and operation of reservoirs can bring many benefits to the society, such as irrigation, flood control, navigation, power generation, recreation, and environmental benefits. As soon as a reservoir is completed and starts storing water, part or most of the sediment transport processes in a river is interrupted. Most of the incoming sediments are trapped in the reservoir, forming delta with back water affecting a long distance upstream. Reservoir sedimentation can reduce the reservoir's volume needed for flood control, irrigation, water supply, power generation, navigation, etc. As sediments approaching hydraulic structures, the operation of structures can be adversely affected or render useless. If no action is taken to remediate the sedimentation problems, a reservoir may lose its original design functions, and may pose a safety concern.  相似文献   

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