Analysis of the Sedimentation of Small Reservoirs in Mountainous Region and the Necessity of Desilting
In the mountainous small watershed,there are a large number of small reservoirs.After a long time operation sedimentation and defects are found in many reservoirs.With the implementation of reservoir reinforcement in recent years,the safety of the defect reservoirs have been basically solved,however the sedimentation still exists.Although the storage capacity of small reservoirs in mountainous areas is not large enough,yet for a small watershed,these small reservoirs could play a key role in flood detention,disasters reduction,and allocation of water resources in the watershed,and are the important part of the healthy development of water environment and water ecology in the small watershed.In the implementation of small watershed management,the functional restoration of small reservoirs should also be stressed in the systematic management of the small watershed.For this purpose,the sedimentation of small reservoirs in mountainous areas and the necessity of reservoir desilting are analyzed in the paper.
small reservoir,small watershed managementsedimentationdesilting
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