globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2943
论文题名:
Global aquifers dominated by fossil groundwaters but wells vulnerable to modern contamination
作者: Jasechko S.; Perrone D.; Befus K.M.; Bayani Cardenas M.; Ferguson G.; Gleeson T.; Luijendijk E.; McDonnell J.J.; Taylor R.G.; Wada Y.; Kirchner J.W.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2017
卷: 10, 期:6
起始页码: 425
结束页码: 429
语种: 英语
Scopus关键词: aquifer ; carbon isotope ; fossil ; groundwater ; groundwater pollution ; infiltration ; isotopic analysis ; tritium ; vulnerability ; water quality ; water resource
英文摘要: The vulnerability of groundwater to contamination is closely related to its age. Groundwaters that infiltrated prior to the Holocene have been documented in many aquifers and are widely assumed to be unaffected by modern contamination. However, the global prevalence of these â - fossil' groundwaters and their vulnerability to modern-era pollutants remain unclear. Here we analyse groundwater carbon isotope data (12C, 13C, 14C) from 6,455 wells around the globe. We show that fossil groundwaters comprise a large share (42-85%) of total aquifer storage in the upper 1 km of the crust, and the majority of waters pumped from wells deeper than 250 m. However, half of the wells in our study that are dominated by fossil groundwater also contain detectable levels of tritium, indicating the presence of much younger, decadal-age waters and suggesting that contemporary contaminants may be able to reach deep wells that tap fossil aquifers. We conclude that water quality risk should be considered along with sustainable use when managing fossil groundwater resources. © 2017 Macmillan Publishers Limited, part of Springer Nature.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/105773
Appears in Collections:气候减缓与适应
科学计划与规划

Files in This Item:

There are no files associated with this item.


作者单位: Department of Geography, University of Calgary, Calgary, AB, Canada; Water in the West, Stanford University, Stanford, CA, United States; Department of Civil and Environmental Engineering, Stanford University, Stanford, CA, United States; Department of Civil and Architectural Engineering, University of Wyoming, Laramie, WY, United States; Department of Geological Sciences, University of Texas at Austin, Austin, TX, United States; Department of Civil and Geological Engineering, University of Saskatchewan, Saskatoon, SK, Canada; Department of Civil Engineering, School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada; Geoscience Centre, University of Göttingen, Göttingen, Germany; Global Institute ForWater Security, School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK, Canada; School of Geosciences, University of Aberdeen, Aberdeen, United Kingdom; Department for Forest Engineering, Resources and Management, Oregon State University, Corvallis, OR, United States; Department of Geography, University College London, London, United Kingdom; International Institute for Applied Systems Analysis, Schlossplatz 1, Laxenburg, Austria; Department of Physical Geography, Utrecht University, Utrecht, Netherlands; Department of Environmental System Sciences, ETH Zürich, Universitätstrasse 16, Zürich, Switzerland; Swiss Federal Research Institute WSL, Birmensdorf, Switzerland; Department of Earth and Planetary Science, University of California, Berkeley, CA, United States

Recommended Citation:
Jasechko S.,Perrone D.,Befus K.M.,et al. Global aquifers dominated by fossil groundwaters but wells vulnerable to modern contamination[J]. Nature Geoscience,2017-01-01,10(6)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Jasechko S.]'s Articles
[Perrone D.]'s Articles
[Befus K.M.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Jasechko S.]'s Articles
[Perrone D.]'s Articles
[Befus K.M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Jasechko S.]‘s Articles
[Perrone D.]‘s Articles
[Befus K.M.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.