安固里淖流域地下水水化学特征及控制因素 |
摘要点击 1043 全文点击 91 投稿时间:2024-05-20 修订日期:2024-08-08 |
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中文关键词 安固里淖 水化学特征 离子来源 控制因素 地下水 |
英文关键词 Angulinao chemical characteristics ion source controlling factors groundwater |
DOI 10.13227/j.hjkx.20250610 |
作者 | 单位 | E-mail | 马雪梅 | 河北省高校生态环境地质应用技术研发中心, 石家庄 050031 中国地质调查局水文地质环境地质调查中心, 天津 300304 中国地质调查局地下水勘查与开发工程技术研究中心, 天津 300304 | 247523354@qq.com | 李伟 | 中国地质调查局水文地质环境地质调查中心, 天津 300304 中国地质调查局地下水勘查与开发工程技术研究中心, 天津 300304 | | 邓启军 | 中国地质调查局水文地质环境地质调查中心, 天津 300304 中国地质调查局地下水勘查与开发工程技术研究中心, 天津 300304 | | 郑一迪 | 中国地质调查局水文地质环境地质调查中心, 天津 300304 中国地质调查局地下水勘查与开发工程技术研究中心, 天津 300304 | | 马学军 | 中国地质调查局水文地质环境地质调查中心, 天津 300304 中国地质调查局地下水勘查与开发工程技术研究中心, 天津 300304 | | 龚磊 | 河北省高校生态环境地质应用技术研发中心, 石家庄 050031 中国地质调查局水文地质环境地质调查中心, 天津 300304 中国地质调查局地下水勘查与开发工程技术研究中心, 天津 300304 | | 何锦 | 中国地质调查局水文地质环境地质调查中心, 天津 300304 中国地质调查局地下水勘查与开发工程技术研究中心, 天津 300304 | hejing007105@126.com |
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中文摘要 |
为研究安固里淖流域第四系孔隙水(简称“第四系地下水”)、玄武岩孔裂隙水及其混合地下水(简称“玄武岩地下水”)和其他基岩裂隙水(含砂砾岩、碎屑岩、花岗岩裂隙水及其混合水等,简称“其他基岩地下水”)水化学特征及控制因素,采集含地表水、雨水和不同种类地下水等样品175组,综合运用数理统计、Piper三线图、Gibbs图、离子比值及因子分析等方法对研究区不同种类地下水水化学特征及主要控制因素进行了分析与讨论. 结果表明,研究区地下水整体呈弱碱性,3种地下水类型中ρ(TDS)均值由大到小为:929.7 mg·L-1(其他基岩孔裂隙水)>863.4 mg·L-1(第四系孔隙水)>657.4 mg·L-1(玄武岩孔裂隙水),且玄武岩地下水中Na+、Cl-、NO3-、F-等的质量浓度也均较其他种类地下水低. 玄武岩地下水和第四系地下水水化学类型以HCO3-Ca·Mg型为主,其他基岩地下水以HCO3-Ca·Mg型和Cl·SO4-Ca·Mg型为主;研究区地下水水化学演化过程主要受岩石风化、蒸发浓缩、阳离子交换等作用以及人类活动的综合影响. 3种地下水在主要离子来源方面差异性不大:硅酸盐岩矿物风化溶解对3种地下水水质影响最大,碳酸盐岩和蒸发盐岩也为地下水物质组成提供部分来源;研究区地下水水化学特征有两个主控因子:溶滤和蒸发浓缩作用因子以及人类活动影响和原生地质环境因子,二者对第四系地下水、玄武岩地下水和其他基岩地下水累计贡献率分别为81.32%、84.83%和77.39%. 首控因子对地下水水质影响最大,且对3种地下水类型影响程度相近,次要因子对玄武岩地下水影响更为显著. 最后基于水化学特征分析结果对当地地下水资源开发和作物种植提出了建议. |
英文摘要 |
To study the hydrochemical characteristics and controlling factors of groundwater from the quaternary aquifer, basalt aquifer, and other bedrock aquifer in the Angulinao Basin, 175 water samples from groundwater, surface water, and rain were collected. Comprehensive methods such as mathematical statistics, Piper trilinear diagram, Gibbs plot, ion ratio, and factor analysis were used to analyze and explore the hydrochemical characteristics and controlling factors of the groundwater in the study area. The results showed that the groundwater was characterized by a generally low alkalinity, with average TDS values of the three types of groundwater, from highest to lowest, shown as follows: 929.7 mg·L-1 (other bedrock groundwater) > 863.4 mg·L-1 (quaternary groundwater) > 657.4 mg·L-1 (basalt groundwater). Additionally, the contents of Na+, Cl-, NO3-, and F- were lower in basalt groundwater than in other types of groundwater. The hydrochemical types of basalt groundwater and quaternary groundwater were mainly HCO3-Ca·Mg type, while the other bedrock groundwaters were HCO3-Ca·Mg and Cl·SO4-Ca·Mg type. The chemical evolution of groundwater was primarily influenced by a combination of factors, including rock weathering, evaporation, crystallization, cation exchange, and human activities in the study area. There was little difference in the main ion sources of the three types of groundwater; weathering and dissolution of silicate minerals had the greatest influence on the quality of the groundwater, while carbonate and evaporite rocks also provided part of the source of groundwater composition. The principal control factors were leaching and concentration processes as well as the impact of human activities and inherent geological factor, whose cumulative contribution rates were 81.32%, 84.83%, and 77.39% separately for the quaternary aquifer, basalt aquifer, and other bedrock aquifer, respectively. Finally, suggestions on the exploitation of groundwater resources and crop cultivation were put forward based on the analysis of hydrochemical characteristics. |