前坪水库工程对下游河道水文水资源影响分析

Impact analysis of Qianping Reservoir on water regime of downstream river courses

前坪水库工程是北汝河上游一座大型枢纽控制工程。为研究工程建成后对下游水文水资源的影响,从河道水文情势进行分析,并对水库建成后下游河道洪水流量变化情况进行研究,认为前坪水库建成后,改善了流域水资源时程的分配,使洪水资源化,增加了枯水期北汝河河道下泄水量,解决了下游河段断流的问题,对下游河道安全度汛、水资源利用等将产生积极影响。

Qianping Reservoir is a large-scale regulation project in the upper reaches of the Beiru River.In order to understand the impact of the reservoir after its completion,the paper analyzes water regime,as well as changes of flood flow at the downstream river.It is concluded that the completion of Qianping Reservoir can improve the temporal distribution of water in the basin,make full utilization of floodwater,increase water discharge in the dry season,and alleviate dry-up of the Beiru River at the downstream.The positive impact of the project includes flood control and water supply.