Impacts of Reclaimed River-Water Recharge on Groundwater of a Multi-Layered Aquifer System: Combining Hydrochemical Analysis and End-Member Mixing Approaches
文献类型：期刊论文
| 作者 | Zhao, Zhanfeng1; Song, Xianfang1; Yang, Lihu1; Wang, Shuyuan2 |
| 刊名 | WATER
 |
| 出版日期 | 2025-08-31 |
| 卷号 | 17期号:17页码:2575 |
| 关键词 | multi-layered aquifer system managed aquifer recharge reclaimed water hydrochemical analysis end-member mixing analysis |
| DOI | 10.3390/w17172575 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | A managed aquifer recharge (MAR) project utilizing reclaimed water has been operated for over 10 years in northeastern Beijing, China, with the goal of restoring the long-dried Chaobai River and replenishing the region's depleted groundwater resources. To ensure the safe implementation of the project, we quantitatively assessed the impact of river water recharge on the multi-layered groundwater system by investigating the hydrochemical compositions of the reclaimed water, river water, and groundwater. Results show that river water is characterized by higher concentrations of Na+, Cl-, and SO42- than found in groundwater, and that river water recharge has altered the groundwater types in the 30 m-depth unconfined layer, changing them from Ca-Mg-HCO3 and Ca-HCO3 types to Na-Ca-HCO3-Cl and Ca-Mg-Na-HCO3 types. End-member mixing analyses of river water samples indicate that three end-members are needed to represent the seasonal and spatial variations in river water. A five-end-member mixing model is then developed to quantify fractions of river water (fR) in different aquifer layers. The estimated fR values vary from 18.4% to 100%, with an average of 67.6% in the 30 m-depth layer, while fR values in the 80 m-depth confined layer are mainly below 30%, with an average of 13.3%, which corresponds well to the known site geology. Overall, combining hydrochemical analysis with the end-member mixing approach is useful for assessing the impact of river recharge on groundwater. This study also highlights the need for high-resolution characterization of subsurface heterogeneity in MAR sites. |
| URL标识 | 查看原文 |
| WOS关键词 | WASTE-WATER ; COASTAL AQUIFER ; CHAOBAI RIVER ; DELTA AQUIFER ; INFILTRATION ; COMPONENTS ; EVOLUTION ; DYNAMICS ; QUALITY ; RATIOS |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001569544500001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/216131]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Zhao, Zhanfeng; Song, Xianfang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; 2.Inner Mongolia Coal Geol Explorat Grp 472 Co Ltd, Tongliao 028000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Zhanfeng,Song, Xianfang,Yang, Lihu,et al. Impacts of Reclaimed River-Water Recharge on Groundwater of a Multi-Layered Aquifer System: Combining Hydrochemical Analysis and End-Member Mixing Approaches[J]. WATER,2025,17(17):2575. |
| APA | Zhao, Zhanfeng,Song, Xianfang,Yang, Lihu,&Wang, Shuyuan.(2025).Impacts of Reclaimed River-Water Recharge on Groundwater of a Multi-Layered Aquifer System: Combining Hydrochemical Analysis and End-Member Mixing Approaches.WATER,17(17),2575. |
| MLA | Zhao, Zhanfeng,et al."Impacts of Reclaimed River-Water Recharge on Groundwater of a Multi-Layered Aquifer System: Combining Hydrochemical Analysis and End-Member Mixing Approaches".WATER 17.17(2025):2575. |
入库方式： OAI收割
来源：地理科学与资源研究所
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