沿海地区井盐水资源评价及其合理开发利用——以兴城现代渔业园区为例

Research on Evaluation and Rational Exploitation and Utilization of the Salt Well Water Resources in Coastal Areas——A Case Study of Xingcheng Modern Fishery Garden

井盐水,即低浓度地下卤水,是沿海地区长期海水倒灌所形成,主要分布于渤海湾、辽东湾等砾砂质沿岸地区。以利用井盐水资源进行工厂化水产养殖的兴城现代渔业园区为例,采用地下水数值模拟技术,对园区井盐水进行评价。结果表明,园区井盐水处于负均衡状态。针对园区大量开采井盐水所引发的海水入侵、水质恶化等环境问题,提出加强水资源的循环利用、修建拦潮坝等工程措施、建立井盐水的动态变化监测网等开发利用对策。

The salt well water, also called underground brine with the low concentration ,is caused by the seawater intrusion in coastal areas, and mainly distributes in the rudaceous or arenaceous shore plain of the Bohai bay and Liaodong bay and so on. Taking the Xingcheng modern fishery garden as case study area where the salt well water resources have been developed for local aquiculture in factories, the evaluation result of the salt well water resources with groundwater flow numerical simulation suggests that the groundwater balance is in the negative state. At the same time, some suggestions and tactics, which include strengthen the cyclic utilization of water resources, constructing engineering measures such as tidal barrage, building the dynamic monitoring net of the salt well water, will be of significance for the rational exploitation and utilization of the salt well water to avoid these environmental problems, such as seawater intrusion, drinking water quality deterioration.