秦皇岛市海水入侵特征

Seawater Intrusion Characteristics in Qinhuangdao

本文在海水入侵勘查、监测成果的基础上,阐述了该区海水入侵现状、分布特征、演化过程和入侵方式。探讨了海水入侵的机理,指出人类活动是海水入侵的诱发因素,超采地下水是海水入侵的根本原因。应用基于GIS的层次分析法进行了危险性评价,从地学角度,提出了海水入侵灾害生态综合防治对策。

This article, based on seawater intrusion reconnaissance and monitoring result, expatiates the present situation of seawater intrusion, distributing characteristics, evolvement process and intrusion fashion, discusses the mechanism of seawater intrusion, points out that human＇s activity induced seawater intrusion, underground water＇s excessive exploiting is the fundamental cause of seawater intrusion. The risk assessment is based on GIS AHP analysis method, and puts forward the zoology integrated control countermeasures of seawater intrusion from the geologic viewpoint.