摘要
Abstract
It is proposed to build Hongshan Reservoir in the Jingou River basin.The main engineering tasks are to resist floods,irrigate crops,supply water for industrial production,and take into account the power generation.This paper analyzes the impact of Hongshan Reservoir on the reservoir water environment after it is completed.The results show that:after the construction and operation of Hongshan Reservoir,part of the flood water at the end of the flood season and the idle water in winter are used for supplementary irrigation.The drainage water at the mountain pass is reduced,and the diversion water at the head of the Jingou River is increased,which solves the water shortage problem in the irrigation area.The drainage water at the head of the canal is reduced,resulting in the reduction of groundwater replenishment in the downstream region.After the operation of the project,the water area of the reservoir area increases by 6.47 times at the normal water level.During the initial storage period of the reservoir,the water volume of the river below the dam site decreases significantly compared with the natural condition.After the completion of the reservoir,the water quality of the outlet was slightly improved,but the water quality of the reach was not significantly improved due to the decrease of the discharge from the first section of the Jingou river base and the decline of the self-purification capacity of the water body.关键词
金沟河流域/红山水库/区域水资源Key words
Jingou River Basin/Hongshan Reservoir/regional water resources分类
建筑与水利
