秦皇岛市海水入侵现状及防治对策研究

海水入侵是一种严重的地质灾害,它可引起机井报废、土壤盐渍化、地下管线腐蚀等一系列生态环境问题。秦皇岛市自20世纪80年代开始,在沿海的石河、汤河、洋河、戴河等入海口以及昌黎县、抚宁县灌区,先后发生了海水入侵现象,且有范围越来越广、程度越来越重的趋势,给当地工农业生产带来了巨大影响。通过分析秦皇岛市海水入侵的原因,提出修建沿海防护工程是治理海水入侵的有效措施,合理开采地下水、节约用水、进行污水和雨水资源化、海水淡化等减少淡水开采或补充地下淡水层是解决海水入侵的根本措施。

Assessment and Control Countermeasures of Seawater Intrusion on Qinhuangdao Region

Seawater intrusion is a serious geological disaster,k which can make a series of ecolog-ical problems, such as wells abandoned, soil salinized, pipeline corrupted. Seawater intrusion oc-curred and developed more and more serious since the 1980s in Qinhuangdao, especially at the estuary of Shi River, Tang River, Yang River and Dai River, also at the irrigated area in Changli and Funing county. The intrusion has brought great influences to the industrial and agricultural production. The conclusion was got that the most effective measure to control seawater intrusion is to build the coastal protection engineering, the basic measure is to restrict the exploit of the fresh-water, to make the sewage and rainfall recycled, the seawater desalinated through analysis on the reason of the seawater intrusion.