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黄河下游(河南段)潜水水文地球化学特征及补给来源识别

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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191～8 169 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HCO3-Ca·Mg·Na、HCO3-Mg·Ca型;研究区阳离子主要以Mg2+和Ca2+为主、阴离子以HCO3-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Ca2+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.
Hydrogeochemical characteristics and recharge source identification of phreatic water in the lower reaches of the Yellow River(Henan section)
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 8 169 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 HCO3-Ca·Mg·Na and HCO3-Mg·Ca.The cations in the study area are mainly Mg2+and Ca2+,and the anions are mainly HCO3.In the study area,strong cation exchange occurs,with Ca2+in solution exchan-ging 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 oxy-gen 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.

phreatic waterhydrogeochemical characteristicindentificaiton of recharge sourcehydrogen and oxygen isotopethe lower reaches of the Yellow River

潘登、王帅、郭红、王琳、李屹田

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河南省自然资源监测和国土整治院,河南郑州 450016

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

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

郑州市多要素城市地质调查项目2019年中央水污染防治基金项目中国地质调查局地质调查基金项目

202102B豫财环资[2020]3号WT2023048B

2024

10.13578/j.cnki.issn.1671-1556.20230382

安全与环境工程
中国地质大学

安全与环境工程

CSTPCD北大核心
影响因子：1.03
ISSN：1671-1556
年,卷(期)：2024.31(4)
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