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贾鲁河生态补水对地下水环境影响的机理研究

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为了研究生态补水对地下水环境的影响,开展了生态补水、地下水与含水介质的水岩相互作用模拟实验,探究了不同含水介质、不同比例补水主要的变化规律及机理.结果显示:对于同一含水介质,生态补水所占比例越高,混合液中K+、Na+、Ca2+、HCO3-浓度越低.水岩相互作用过程中Na+、Cl-、HCO3-、SO42-浓度的增加主要来自岩盐、石膏、方解石和白云石的溶解,反应过程中还发生了阳离子交替吸附作用.与纯水组相比,生态补水改变了原有的地下水化学组分,改善了区域水环境.南水北调水已成为郑州供水的主要水源,解决了郑州市的严重缺水问题,对保障贾鲁河流域生活供水、工农业生产的发展和生态环境保护起到了重要作用.
Study on Mechanism of Ecological Replenishment on Groundwater Environment in Jialu River
In order to study the impact of ecological water replenishment on groundwater environment,the water-rock interaction simulation experiment of ecological water replenishment,groundwater and water-bearing medium was carried out,which explored the change rule and mechanism of the main water-chemical components of different water-bearing medium and different proportions of water replenishment.The results showed that the higher the proportion of ecological water replenishment,the lower the concentration of K+,Na+,Ca2+ and HCO3-in the mixed solution.The increase of Na+,Cl-,HCO3-,SO42-concentrations in the water-rock interaction is mainly due to the dissolution of rock salt,gypsum,calcite and dolomite,and the cation alternating adsorption occurs during the reaction.Compared with pure water group,ecologi-cal replenishment changes the original groundwater chemical composition and improves the regional water environment.The South-to-North Water Diversion Project has become the main source of water supply in Zhengzhou,which solved the serious water shortage problem there,and played an important role in ensuring the domestic water supply,the devel-opment of industrial and agricultural production and the protection of ecological environment in Jialu River basin.

Ecological water resplenishmentJialu RiverWater-chemical componentsGroundwater

张艺潆、严天岗、屈吉鸿

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华北水利水电大学地球科学与工程学院,河南 郑州 450046

河南省水利勘测设计研究有限公司,河南 郑州 450016

黄河流域水资源高效利用省部共建协同创新中心,河南 郑州 450046

生态补水 贾鲁河 水化学组分 地下水

2024

山东水利
山东省水利科学研究院

山东水利

影响因子:0.098
ISSN:1009-6159
年,卷(期):2024.(2)
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