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以济南西部冲积平原孔隙水和岩溶水为研究对象，采用 Gibbs 图解法、饱和指数法、离子比值法、钠吸附比值法、离子相关性分析法、因子分析法等研究方法对水化学数据进行深度分析，旨在摸清济南西部冲积平原岩溶水和孔隙水的水文地球化学过程。结果显示: 济南西部冲积平原孔隙水和岩溶水水文地球化学过程主要受水岩相互作用和人类活动控制，既存在联系，也存在差异。孔隙水和岩溶水水化学类型以 HCO3-Ca 为主，孔隙水离子空间分布离散性大于岩溶水。根据 Gibbs 图，孔隙水与岩溶水的水化学成分的形成主要受岩石风化控制，孔隙水还受到一定的蒸发浓缩作用。饱和指数、离子比例系数图和离子相关性分析显示，Ca2+、Mg2+和 HCO3~-大多来自于方解石和白云石的溶解，蒸发岩的溶解对 Na+和 Cl~-、Ca2+和 SO42-有贡献，Cl~-、SO42-、NO3~-和 Ca2+存在人类活动造成的外源输入。因子分析显示孔隙水水化学组分受到岩溶水补给和人类活动的双重影响; 岩溶水水化学组分主要受水岩相互作用控制，同时也受到一定的人类活动影响。目前济南西部孔隙水受人类活动影响较大，而岩溶水水化学组分主要受水岩作用控制。济南西部是济南市重要的水源地，今后应该重视对研究区地下水环境质量的监测和保护。
Abstract：In this study,the interstitial water and karst water of western Jinan are taken as the research objects to analyze the water chemistry data by using ion correlation analysis,factor analysis,saturation index,ion ratio,Gibbs diagram,sodium adsorption ratio and other research methods,aiming to understand the hydrogeochemical process of karst water and interstitial water in Jinan area. The results show that the hydrogeochemical processes of interstitial water and karst water in the west of Jinan are obviously affected by water-rock interaction and human activities,and there are connections and differences between the interstitial water and karst water. The chemical types of interstitial water and karst water are mainly HCO3-Ca,and the ion spatial distribution of interstitial water is more discrete than karst water. According to Gibbs diagram,the formation of hydrochemical composition of interstitial water and karst water is mainly controlled by rock weathering,and interstitial water is also subject to evaporation and concentration. According to ion correlation analysis,saturation index and ion ratio,the main ions Ca2+,Mg2+and HCO3~-mostly come from the dissolution of calcite and dolomite,and the dissolution of evaporite also contribute to Na+,Cl~-,Ca2+and SO42-,parts of Cl~-,SO42-and NO3~-are derived from exogenous inputs caused by human activities. Factor analysis shows that the interstitial water's chemical composition is offected by both karst water supply and humer activily. The chemical composition of karst water is mainly contrdled by the water nxk interaction,but also affected by human activity. At present,karst water in the west of Jinan is greatly affected by human activity,while the hydrochemical composition of lava water is mainly controdled by water-rock interaction. The west of Jinan is an important water source of Jinan,to we should pay attention to the monitoring and protection of grourdwater environmental quality.
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基本信息:
DOI：10.13928/j.cnki.wrahe.2022.03.005
中图分类号:P641.3
引用信息:
[1]贾超,王丛,刘森,等.济南西部冲积平原地下水水文地球化学特征研究[J],2022,53(03):49-60.DOI:10.13928/j.cnki.wrahe.2022.03.005.
基金信息:
河海大学水文水资源与水利工程科学国家重点实验室“一带一路”水与可持续发展科技基金面上基金(201992011);; 山东大学基本科研业务费资助项目(人才引进与培养类专项)(62420079614087)