Analysis of Reservoir Irrigation Capacity Based on Sediment Deposition
The reservoir storage capacity is mainly restricted by sediment deposition,evaporation and leakage,which are affected by the inflow flood.In order to scientifically determine the irrigation capacity of a reservoir in Fugu County,based on the basic situation of branch ditches and reservoirs,the sedimentation,evaporation and leakage of the reservoir were discussed on the basis of analyzing the inflow flood of the river by using the method of Tieyiyuan,reasoning formula and empirical formula.The results show that the design capacity of the reservoir meets the demand of irrigation water.The current dead water level of the reservoir is 1614 m,and the current capacity is only 860,000 m3.It is necessary to expand the irrigation capacity through the excavation,dredging and leveling of the reservoir area to meet the demand of irrigation water,which can provide scientific basis for flood control irrigation and benefit play of the reservoir.
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