摘要
拟在金沟河流域修建红山水库,主要的工程任务为抵御洪水、为农作物灌水、为工业生产供水,并兼顾到发电。文章分析了红山水库建成蓄水后对库区水环境的影响,研究表明:红山水库建设运行后将拦蓄部分汛末洪水和冬闲水用于补充灌溉,山口处下泄水量减少,金沟河渠首引水量增加,解决了灌区缺水问题,渠首断面下泄水量减少,导致下游区域地下水补量减少;工程运行后,在正常蓄水位时,库区水域面积增加了6.47倍,在水库初期蓄水期内坝址以下河段,河道水量比天然状况有较大幅度减小;水库建成后,出库水质略有改善,但由于金沟河渠首断面下泄水量减小,水体自净能力下降,河段水质无明显改善。
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.
作者
周彦青
ZHOU Yanqing(Xinjiang Jingou River Basin Management Bureau,Shawan 832100,China)
出处
《河南水利与南水北调》
2023年第12期31-32,共2页
Henan Water Resources & South-to-North Water Diversion
关键词
金沟河流域
红山水库
区域水资源
Jingou River Basin
Hongshan Reservoir
regional water resources
