Numerical modeling of changes in groundwater storage and nitrate load in the unconfined aquifer near a river receiving reclaimed water
文献类型：期刊论文
| 作者 | Jiang, Ruixue1,2; Han, Dongmei1,2; Song, Xianfang1,2; Zheng, Fandong3 |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2022-01-21 |
| 页码 | 15 |
| 关键词 | Beijing Reclaimed water Unconfined aquifer Groundwater storage Nitrate loads Numerical model |
| ISSN号 | 0944-1344 |
| DOI | 10.1007/s11356-022-18597-1 |
| 通讯作者 | Han, Dongmei(handm@igsnrr.ac.cn) |
| 英文摘要 | Reclaimed water (RW) has been widely used as an alternative water resource to recharge rivers in mega-city Beijing. At the same time, the RW also recharges the ambient aquifers through riverbank filtration and modifies the subsurface hydrodynamic system and hydrochemical characteristics. To assess the impact of RW recharge on the unconfined groundwater system, we conducted a 3D groundwater flow and solute transport model based on 10 years of sequenced groundwater monitoring data to analyze the changes of the groundwater table, Cl- loads, and NO3-N loads in the shallow aquifer after RW recharge to the river channel. The results show that the groundwater table around the river channel elevated by about 3-4 m quickly after RW recharge from Dec. 2007 to Dec. 2009, and then remained stable due to the continuous RW infiltration. However, the unconfined groundwater storage still declined overall from 2007 to 2014 due to groundwater exploitation. The storage began to recover after groundwater extraction reduction, rising from 3.76 x 10(8) m(3) at the end of 2014 to 3.85 x 10(8) m(3) at the end of 2017. Cl- concentrations varied from 5-75 mg/L before RW recharge to 50-130 mg/L in 2 years (2007-2009), and then remained stable. The zones of the unconfined groundwater quality affected by RW infiltration increased from 11.7 km(2) in 2008 to 26.7 km(2) in 2017. Cl- loads in the zone increased from 1.8 x 10(3 )t in 2008 to 3.8 x 10(3) t in 2017, while NO3-N loads decreased from 29.8 t in 2008 to 11.9 t in 2017 annually. We determined the maximum area of the unconfined groundwater quality affected by RW, and groundwater outside this area not affected by RW recharge keeps its original state. The RW recharge to the river channel in the study area is beneficial to increase the groundwater table and unconfined groundwater storage with lesser environmental impacts. |
| WOS关键词 | ENDOCRINE DISRUPTING CHEMICALS ; WASTE-WATER ; CHAOBAI RIVER ; RECHARGE ; QUALITY ; FIELD ; INFILTRATION ; ATTENUATION ; FILTRATION ; MIGRATION |
| 资助项目 | Beijing Municipal Natural Science Foundation[8212035] ; National Natural Science Foundation of China[41730749] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000745504900026 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | Beijing Municipal Natural Science Foundation ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/169942]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Han, Dongmei |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Beijing Water Sci & Technol Inst, Dept Water Resources, Beijing 100048, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Ruixue,Han, Dongmei,Song, Xianfang,et al. Numerical modeling of changes in groundwater storage and nitrate load in the unconfined aquifer near a river receiving reclaimed water[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2022:15. |
| APA | Jiang, Ruixue,Han, Dongmei,Song, Xianfang,&Zheng, Fandong.(2022).Numerical modeling of changes in groundwater storage and nitrate load in the unconfined aquifer near a river receiving reclaimed water.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,15. |
| MLA | Jiang, Ruixue,et al."Numerical modeling of changes in groundwater storage and nitrate load in the unconfined aquifer near a river receiving reclaimed water".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2022):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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