摘要
在海水入侵勘查、监测结果的基础上,对该地区海水入侵分布特征及成因进行分析,结果表明:1.滨海地区特殊的沉积环境及大气降水是影响海水入侵的主要因素,农业灌溉、晒盐及鱼塘养殖是加剧滨海地区海水入侵的动力。2.海水入侵程度与地下水位呈异性变化规律;枯水期,海水入侵程度加剧,丰水期,海水入侵程度减缓;随着时间发展,海水入侵整体趋势呈现减缓趋势。3.区域内海水入侵具有一定规律,距离海岸越近的地区,受海水入侵越严重;成陆时间越早,受海水入侵影响越轻。4.地下水质类型由靠近海的C l型经C l-HCO3型或HCO3-C l型再到HCO3型变化。
In this paper , it based on the investigation of seawter intrusion and monitoring results that describes the distribution of seawater intrusion and formation, the results show that： 1. the unique environment of Sedimentary coastal region and precipitation are major factors affecting seawater intrusion, agricultural irrigation, salt production and fish fanning is the increasing power of seawater intrusion in coastal areas. 2. Seawater intrusion and the variation of groundwater level are the opposite sex, in dry season , the degree of seawater intrusion is increasing ; in the wet period , the extent of seawater intrusion is mitigating, the overall trend is mitigation in the sea water intrusion. 3. it has certain rules in seawater instrusion areas, the more away from the sea , the more seriously affected by sea water instrusion ;into the earlier land , the more lighter by seawater instrusion. 4. the quality of groundwater is the Cl type after by Cl - HCO3 type or HCO3 - Cl type to HCO3 type from the sea to land.
出处
《贵阳学院学报（自然科学版）》
2010年第3期26-31,共6页
Journal of Guiyang University：Natural Sciences
基金
908专项海洋地质灾害调查与研究(908-01-ZH2)
海水入侵现状评价及防治对策研究(908-02-03-05)
我国近海海洋基本状况(908-ZC-Ⅱ-05)
关键词
海水入侵
地下水
南通
seawater intrusion
roundwater
NanTong
