引水补源工程对黛溪河流域地下水补给效果浅析

Analysis of the effect of Water Diversion and Source Supplement Project on groundwater recharge in Daixi River Basin

南水北调是国家级的重大水利工程,调水效果最终依赖于接收调水地区对调水的具体利用,引水补源工程是南水北调工程在邹平市的具体利用。为评价引水补源工程对黛溪河流域地下水的补给效果,在分析邹平市引水补源工程实施后黛溪河流域地下水资源的各个补给项的基础上,采用水均衡法计算各个地下水补给量,确定了黛溪河流域引水补源的总补给量。将总补给量视为本区地下水可开采资源量,将地下水可开采资源量与本区用水所需的地下水开采量相比较,对本区地下水资源可开采潜力进行了评价,论证了引水补源工程可有效缓解区内地下水超采问题。另外,还充分利用年地下水动态和多年地下水位动态变化等监测资料,揭示了引水补源工程对区内地下水的有效补充作用,为区内合理开发利用地下水资源提供了依据。

The South-to-North Water Diversion Project is a major national water conservancy project,but the effect of the water transfer depends on the utilization of water in the receiving areas.Water Diversion and Source Supplement Project is a specific utilization of the South-to-North Water Diversion Project in Zouping City.In order to analyze the effect of Water Diversion and Source Supplement Project on groundwater recharge in Daixi River Basin,the authors adopted the water balance method to calculate the groundwater recharge and total recharge of water diversion sources,based on the analysis of the groundwater recharge items in Daixi River Basin after carrying out this project.The total recharge is regarded as the amount of exploitable groundwater resources.The exploitable potential of groundwater resources in this area is evaluated by the comparison of the amount of exploitable groundwater resources and the actual amount of groundwater exploitation,and the effect of Water Diversion and Source Supplement Project on the over-exploitation of groundwater on the remission area was also demonstrated.Besides,the effective replenishment effect of this project on the groundwater in the study area was also revealed based on the annual groundwater and multi-year groundwater level dynamic monitoring data,which provides some reference for the rational development and utilization of groundwater resources in this region.