北海市海水养殖区海水入侵特征及对地下水的影响——以南流江三角洲平原为例  

The Characteristics of Seawater Intrusion at Nanliu River Delta in Beihai City and Its Effect on Groundwater

作　　者：常艳娥[1,2] 黎广钊[1,2] 

机构地区：[1]广西大学,广西南宁530005 [2]广西红树林研究中心,广西北海536000

出　　处：《安徽农业科学》2011年第18期11057-11060,共4页Journal of Anhui Agricultural Sciences

摘　　要：在北海市合浦县南流江三角洲平原海水养殖区中,自海岸向陆延伸,按距海远近选择7个不同地点人工水井的地下水采样点,采集地下水进行化学特征分析研究。结果表明,该研究区地下水受海水污染严重,必需引起注意和防范;在自然和人为因素影响下,该研究区的海水入侵特点为:水平方向上,距离海岸近的水井地下水氯离子含量高,距离海岸远的水井地下水氯离子含量低;垂直方向上,地下水的分布特点则表现为上淡下咸的趋势;具有明显的季节性变化特点。In aquaculture area of Nanliu River Delta in Hepu District of Beihai City, according to the distance from the sea, 7 different under- ground water sampling points of artificial well were selected, and underground water was collected, chemical features were analyzed and studied. The results indicated that it was very serious of the impact of the sea water intrusion to ecological environment on vegetables base at Nanliu River, and should be attracted attention and prevent. Based on the effects of the natural and human factors, there were three features of the seawater in- trusion at Nanliu River, first, at the lever direction, the more closer from the sea, the higher the chloride content was; the father away from the sea, the lower the chloride content ; second, in vertical direction, the distribution of the groundwater showed a trend of the salt under the light ; third, the ~roundwater had a significant seasonal chanzes.

关 键 词：地下水 海水入侵 监测 北海市 

分 类 号：X832[环境科学与工程—环境工程]