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DOI | 10.1073/pnas.1614941114 |
Enhanced groundwater recharge rates and altered recharge sensitivity to climate variability through subsurface heterogeneity | |
Hartmann, Andreas1,2; Gleeson, Tom3,4; Wada, Yoshihide5,6,7,8; Wagener, Thorsten2,9 | |
2017-03-14 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:11页码:2842-2847 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; England; Canada; Austria; USA; Netherlands |
英文摘要 | Our environment is heterogeneous. In hydrological sciences, the heterogeneity of subsurface properties, such as hydraulic conductivities or porosities, exerts an important control on water balance. This notably includes groundwater recharge, which is an important variable for efficient and sustainable groundwater resources management. Current large-scale hydrological models do not adequately consider this subsurface heterogeneity. Here we show that regions with strong subsurface heterogeneity have enhanced present and future recharge rates due to a different sensitivity of recharge to climate variability compared with regions with homogeneous subsurface properties. Our study domain comprises the carbonate rock regions of Europe, Northern Africa, and the Middle East, which cover similar to 25% of the total land area. We compare the simulations of two large-scale hydrological models, one of them accounting for subsurface heterogeneity. Carbonate rock regions strongly exhibit "karstification," which is known to produce particularly strong subsurface heterogeneity. Aquifers from these regions contribute up to half of the drinking water supply for some European countries. Our results suggest that water management for these regions cannot rely on most of the presently available projections of groundwater recharge because spatially variable storages and spatial concentration of recharge result in actual recharge rates that are up to four times larger for present conditions and changes up to five times larger for potential future conditions than previously estimated. These differences in recharge rates for strongly heterogeneous regions suggest a need for groundwater management strategies that are adapted to the fast transit of water from the surface to the aquifers. |
英文关键词 | groundwater recharge subsurface heterogeneity water resources climate variability climate change |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396094200035 |
WOS关键词 | SOUTHERN SPAIN ; KARST AQUIFERS ; ISI-MIP ; WATER ; MODEL ; RESOURCES ; RUNOFF ; EUROPE ; PROJECTIONS ; STRATEGIES |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204677 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Freiburg, Inst Earth & Environm Sci, D-79098 Freiburg, Germany; 2.Univ Bristol, Dept Civil Engn, Bristol BS8 1TR, Avon, England; 3.Univ Victoria, Dept Civil Engn, Victoria, BC V8W 2Y2, Canada; 4.Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8W 2Y2, Canada; 5.Int Inst Appl Syst Anal, A-2361 Laxenburg, Austria; 6.NASA, Goddard Inst Space Studies, New York, NY 10025 USA; 7.Columbia Univ, Ctr Climate Syst Res, New York, NY 10025 USA; 8.Univ Utrecht, Dept Phys Geog, NL-3584 CS Utrecht, Netherlands; 9.Univ Bristol, Cabot Inst, Bristol BS8 1TR, Avon, England |
推荐引用方式 GB/T 7714 | Hartmann, Andreas,Gleeson, Tom,Wada, Yoshihide,et al. Enhanced groundwater recharge rates and altered recharge sensitivity to climate variability through subsurface heterogeneity[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(11):2842-2847. |
APA | Hartmann, Andreas,Gleeson, Tom,Wada, Yoshihide,&Wagener, Thorsten.(2017).Enhanced groundwater recharge rates and altered recharge sensitivity to climate variability through subsurface heterogeneity.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(11),2842-2847. |
MLA | Hartmann, Andreas,et al."Enhanced groundwater recharge rates and altered recharge sensitivity to climate variability through subsurface heterogeneity".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.11(2017):2842-2847. |
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