基于分层监测的滨海地区地下水水化学特征分析  

Analysis on Hydro-chemical Characteristics of Coastal Groundwater Based on Layered Monitoring

作　　者：管清花[1,2] 题宇洋 吴现爱 陈凤琴 陈学群[1,2] 仇钰婷 GUAN Qinghua;TI Yuyang;WU Xian’ai;CHEN Fengqin;CHEN Xuequn;QIU Yuting(Water Resources Research Institute of Shandong Province,Jinan 250014,Shandong,China;Shandong Province Key Laboratory of Water Resources and Environment,Jinan 250014,Shandong,China;Shandong Survey and Design Institute of Water Conservancy Co.,Ltd.,Jinan 250013,Shandong,China;Jinan Qingyuan Water Group Co.,Ltd.,Jinan 250011,Shandong,China)

机构地区：[1]山东省水利科学研究院,山东济南250014 [2]山东省水资源与水环境重点实验室,山东济南250014 [3]山东省水利勘测设计研究院有限公司,山东济南250013 [4]济南市清源水务集团有限公司,山东济南250011

出　　处：《济南大学学报(自然科学版)》2025年第1期29-37,共9页Journal of University of Jinan(Science and Technology)

基　　金：山东省重点研发计划项目(软科学)(2023RKY06001);山东省自然科学基金项目(ZR2020QE287,ZR2021MD086);山东省重点研发计划(2023CXGC010905)。

摘　　要：为了探讨地下水分层监测技术在研究地下水不同含水层间的水力联系与地下水污染迁移变化中的应用,以滨海地区山东省寿光市为研究区,在垂直海岸线的淡水区—咸淡水过渡带—咸水区布设多层位监测井,对地下水水位、水质开展分层监测;应用Gibbs图、海水比值等离子相关性水文地球化学分析技术,分析地下水的水化学特征及演化规律,探测海水入侵的类型特点。结果表明:寿光市地下水中淡水、微咸水的形成与碳酸盐和硅酸盐的风化有关,咸水的形成与蒸发-结晶有关;Ca^(2+)的来源为石膏风化和白云石的溶解,Na^(+)、K^(+)的来源为硅酸盐风化及人类活动;砂层富集带是海水入侵重要通道,也是地下水的重要含水层,是海水入侵防治的重要目标层位。To explore the application of stratified groundwater monitoring technology in investigating the hydraulic connection among different aquifers,as well as the migration and variation of groundwater pollution,taking the coastal area of Shouguang City,Shandong Province as the research area,multi-layer monitoring wells were set up in the freshwater zone-brackish water transition zone-brackish water zone of the vertical coastline to carry out hierarchical monitoring of groundwater level and water quality.Using Gibbs map and ion correlation hydrogeochemical analysis of seawater ratio,the hydrochemical characteristics and evolution of groundwater were analyzed,and the type characteristics of seawater intrusion were detected.The results show that the formation of fresh water and brackish water in groundwater in Shouguang City is related to the weathering of carbonate and silicate,and the formation of brackish water is related to evaporation and crystallization.The sources of Ca^(2+)are gypsum weathering and dolomite dissolution,while the sources of Na^(+)and K^(+)are silicate weathering and human activities.In addition,the sand enrichment zone is an important channel of seawater intrusion,an important aquifer of groundwater,and an important target horizon for the prevention and control of seawater intrusion.

关 键 词：地下水多层位监测 水文地球化学 海水入侵 水化学特征 

分 类 号：P641.8[天文地球—地质矿产勘探]