| DOI: | 10.1002/2015GL065798
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| 论文题名: | Groundwater recharge and age-depth profiles of intensively exploited groundwater resources in northwest India |
| 作者: | Lapworth D.J.; MacDonald A.M.; Krishan G.; Rao M.S.; Gooddy D.C.; Darling W.G.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-9261
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| EISSN: | 1944-8992
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| 出版年: | 2015
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| 卷: | 42, 期:18 | | 起始页码: | 7554
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| 结束页码: | 7562
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| 语种: | 英语
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| 英文关键词: | anisotropy
; Groundwater
; over exploitation
; recharge
; tracers
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| Scopus关键词: | Anisotropy
; Aquifers
; Groundwater
; Hydrogeology
; Radioactive tracers
; Recharging (underground waters)
; Sustainable development
; Deep groundwaters
; Environmental tracers
; Ground water recharge
; Groundwater abstraction
; Groundwater residence
; Inter quartile ranges
; Overexploitation
; recharge
; Groundwater resources
; alluvial deposit
; anisotropy
; groundwater
; groundwater abstraction
; groundwater resource
; irrigation system
; recharge
; stable isotope
; Himalayas
; India
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| 英文摘要: | Intensive irrigation in northwest India has led to growing concerns over the sustainability of current and future groundwater abstraction. Environmental tracers and measurements of groundwater residence times can help quantify the renewal processes. Results from 16 paired locations show the interquartile ranges for residence times in shallow alluvial groundwater (8-50-m deep) to be 1-50-years and significantly less than those from deeper groundwater (76-160-m deep) at 40-170-years. The widespread occurrence of modern tracers in deep groundwater (>60% of sites had >10% modern recharge) suggests that there is low regional aquifer anisotropy and that deep aquifers are recharged by a significant component of recent recharge via vertical leakage. Stable isotope and noble gas results at all depths conform to modern meteoric sources and annual average temperatures, with no evidence of significant regional recharge from canal leakage in this study area close to the Himalayas. © 2015 American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84945241990&doi=10.1002%2f2015GL065798&partnerID=40&md5=cd1fdafc393b9d416d1acf8d0c04b3c1
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8877
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | British Geological Survey, Wallingford, United Kingdom
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| Recommended Citation: | |
Lapworth D.J.,MacDonald A.M.,Krishan G.,et al. Groundwater recharge and age-depth profiles of intensively exploited groundwater resources in northwest India[J]. Geophysical Research Letters,2015-01-01,42(18).
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