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Reliability of recharge rates estimated from groundwater age with a simplified analytical approach

文献类型：期刊论文

作者Dong, Yanhui4,5,6; Xie, Yueqing2,3; Zhang, Jun1; Love, Andrew J.2; Dai, Xin3
刊名HYDROLOGICAL PROCESSES
出版日期2021-05-01
卷号35期号:5页码:11
关键词groundwater age simplified analytical approach spatial groundwater recharge
ISSN号0885-6087
DOI10.1002/hyp.14160
英文摘要Groundwater age is often used to estimate groundwater recharge through a simplified analytical approach. This estimated recharge is thought to be representative of the mean recharge between the point of entry and the sampling point. However, given the complexity in actual recharge, whether the mean recharge is reasonable is still unclear. This study examined the validity of the method to estimate long-term average groundwater recharge and the possibility of obtaining reasonable spatial recharge pattern. We first validated our model in producing reasonable age distributions using a constant flux boundary condition. We then generated different flow fields and age patterns by using various spatially varying flux boundary conditions with different magnitudes and wavelengths. Groundwater recharge was estimated and analysed afterwards using the method at the spatial scale. We illustrated the main findings with a field example in the end. Our results suggest that we can estimate long-term average groundwater recharge with 10% error in many parts of an aquifer. The size of these areas decreases with the increase in both the amplitude and the wavelength. The chance of obtaining a reasonable groundwater recharge is higher if an age sample is collected from the middle of an aquifer and at downstream areas. Our study also indicates that the method can also be used to estimate local groundwater recharge if age samples are collected close to the water table. However, care must be taken to determine groundwater age regardless of conditions.
WOS关键词SPATIAL VARIABILITY ; WATER ; AQUIFERS ; C-14 ; FLOW ; GEOCHEMISTRY ; BASIN ; TIME
资助项目Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences[KLSG201704] ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey[KLGEAS201601]
WOS研究方向Water Resources
语种英语
WOS记录号WOS:000655496700007
出版者WILEY
资助机构Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Science Foundation of Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey ; Key Laboratory for Groundwater and Ecology in Arid and Semi-Arid Areas, Xi'an Center of China Geological Survey
源URL[http://ir.iggcas.ac.cn/handle/132A11/102004]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Zhang, Jun
作者单位1.CGS, Key Lab Groundwater & Ecol Arid & Semiarid Areas, Xian Ctr Geol Survey, Xian, Peoples R China
2.Flinders Univ S Australia, Coll Sci & Engn, Natl Ctr Groundwater Res & Training, Adelaide, SA, Australia
3.Nanjing Univ, Sch Earth Sci & Engn, Key Lab Surficial Geochem, Minist Educ, Nanjing, Peoples R China
4.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
5.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Dong, Yanhui,Xie, Yueqing,Zhang, Jun,et al. Reliability of recharge rates estimated from groundwater age with a simplified analytical approach[J]. HYDROLOGICAL PROCESSES,2021,35(5):11.
APA Dong, Yanhui,Xie, Yueqing,Zhang, Jun,Love, Andrew J.,&Dai, Xin.(2021).Reliability of recharge rates estimated from groundwater age with a simplified analytical approach.HYDROLOGICAL PROCESSES,35(5),11.
MLA Dong, Yanhui,et al."Reliability of recharge rates estimated from groundwater age with a simplified analytical approach".HYDROLOGICAL PROCESSES 35.5(2021):11.

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来源：地质与地球物理研究所

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