苏北沿海地区潜水淡化特征及成因分析  

Study on desalination characteristics and origin analysis of phreatic groundwater in coastal area of North Jiangsu

作　　者：陆华[1] 陆徐荣[1] 杨磊[1] 王茂亭[1] 周爱国[1] 

机构地区：[1]江苏省地质调查研究院,江苏南京210018

出　　处：《地质学刊》2010年第3期283-288,共6页Journal of Geology

基　　金：中国地质调查局"江苏平原区地下水污染调查评价"项目(1212010634504)

摘　　要：苏北沿海地区自晚更新世到全新世多次发生海水入侵,造成区内潜水咸化,被咸化的潜水在后期大气降水入渗、地下水开采、农业灌溉、补给地表水等自然条件和人类活动的共同作用下,水质逐步发生了淡化作用。利用苏北沿海地区20世纪80年代和21世纪初的潜水资料,从潜水矿化度、氯化物、总硬度、水化学类型以及水化学三线图等5个方面的分布特征作对比分析,充分证明了区内潜水水质20年来发生的淡化作用。对淡化成因也作了分析。There were many times of marine transgressions since late Pleistocene Epoch to Holocene Epoch in coastal area of North Jiangsu, which inevitably led to the salinization of the phreatic groundwater. Due to combined activities like permeation of precipitation, agricultural irrigation, exploitation of groundwater, surface water supply and human activities, the phreatic groundwater turned to be desalinated. Compared with the available data of the last century, the authors made contrasts on the salinity, chloride, total hardness, chemical types and trilinear diagram, suggesting an obviously desalinated trend in the last two decades.

关 键 词：潜水 淡化 沿海地区 江苏北部 

分 类 号：P641.443[天文地球—地质矿产勘探]