黄河下游(河南段)潜水水文地球化学特征及补给来源识别  

Hydrogeochemical characteristics and recharge source identification of phreatic water in the lower reaches of the Yellow River(Henan section)

作　　者：潘登 王帅 郭红 王琳 李屹田 PAN Deng;WANG Shuai;GUO Hong;WANG Lin;LI Yitian(Institute of Natural Resources Monitoring and Comprehensive Land Improvement of Henan Province,Zhengzhou 450016,China;Key Laboratory of Protection and Restoration of Water and Soil Resources in the Middle and Lower Reaches of the Yellow River Basin,Ministry of Natural Resources,Zhengzhou 450016,China)

机构地区：[1]河南省自然资源监测和国土整治院,河南郑州450016 [2]自然资源部黄河流域中下游水土资源保护与修复重点实验室,河南郑州450016

出　　处：《安全与环境工程》2024年第4期170-180,共11页Safety and Environmental Engineering

基　　金：郑州市多要素城市地质调查项目(202102B);2019年中央水污染防治基金项目(豫财环资[2020]3号);中国地质调查局地质调查基金项目(WT2023048B)。

摘　　要：黄河流域下游地区潜水含水层与地表水体联系密切,其水文地球化学特征及补给来源识别研究对黄河流域地下水合理利用与科学保护有重要意义。本文通过对黄河下游(河南段)潜水样品(共计170组)以及氢氧稳定同位素样品(共计55组)进行数据分析,综合运用数理统计、Piper三线图、离子比值分析、Gibbs图等方法,系统性地分析了研究区潜水的水文地球化学特征及补给来源。研究结果表明:潜水的总溶解固体(TDS)波动性大,其范围为191~8169 mg/L,其中濮阳市、安阳市地区潜水为Ⅴ类水,已无法作为饮用水使用;研究区的主要水化学类型表现为HCO_(3)-Ca·Mg·Na、HCO_(3)^(-)Mg·Ca型;研究区阳离子主要以Mg^(2+)和Ca^(2+)为主、阴离子以HCO_(3)^(-)为主;研究区内潜水发生了强烈的阳离子交替吸附作用,溶液中的Ca^(2+)交换含水介质中的Na^(+);研究区潜水中主要以文石、方解石、白云石等碳酸盐矿物处于过饱和状态至沉淀,石膏发生溶解;黄河下游(河南段)地区的潜水补给来源属于现代大气降水补给;沿潜水含水层的水流动路径上,潜水中的氢氧稳定同位素由于混合效应更为均匀。本研究利用多因素、多方法的手段揭示了黄河下游(河南段)水文地球化学演变过程,为区域内水资源综合利用和管理提供了参考。Phreatic aquifers of the lower reaches of the Yellow River Basin are closely linked to the surface water bodies.Therefore,research on the hydrogeochemical characteristics and identification of recharge sources is of great importance for the rational utilization and scientific protection of groundwater in the Yellow River Basin.This paper systematically analyzed the hydrogeochemical characteristics and recharge sources of the phreatic water in the lower reaches of the Yellow River(Henan section)by collecting and analyzing the chemical ion water samples(170 groups in total)and hydrogen and oxygen isotope samples(55 groups in total),and comprehensively applied the methods of mathematical statistics,Piper trigram,ion ratio analysis and Gibbs chart.The results show that the total dissolved solids(TDS)fluctuate greatly,ranging from 191 to 8169 mg/L,among which the phreatic water in Puyang City and Anyang city is Class V water,which can not be used as drinking water.The main hydrochemical types in the study area are HCO_(3)-Ca·Mg·Na and HCO_(3)-Mg·Ca.The cations in the study area are mainly Mg^(2+)and Ca^(2+),and the anions are mainly HCO_(3)^(-).In the study area,strong cation exchange occurs,with Ca^(2+)in solution exchanging with Na^(+)in aqueous medium in the phreatic water.The carbonate minerals such as aragonite,calcite and dolomite are mainly supersaturated to precipitation,and gypsum is dissolved.The source of phreatic water in the lower reaches of the Yellow River(Henan section)completely belongs to modern atmospheric precipitation recharge.Along the path of groundwater flow in submersible aquifers,the hydrogen and oxygen isotopes in phreatic water are more uniform due to the mixing effect.This study explores and reveals the hydrogeochemical evolution process of the lower reaches of the Yellow River(Henan section)by means of multi-factors and multi-methods,providing reference for the comprehensive utilization and management of water resources in the region.

关 键 词：潜水 水文地球化学特征 补给来源识别 氢氧稳定同位素 黄河下游 

分 类 号：X143[环境科学与工程—环境科学] P641.3[天文地球—地质矿产勘探]