globalchange  > 过去全球变化的重建
DOI: 10.1016/j.jhydrol.2019.02.059
WOS记录号: WOS:000467891900017
论文题名:
Temperature-associated changes in groundwater quality
作者: Riedel, Thomas
通讯作者: Riedel, Thomas
刊名: JOURNAL OF HYDROLOGY
ISSN: 0022-1694
EISSN: 1879-2707
出版年: 2019
卷: 572, 页码:206-212
语种: 英语
英文关键词: Groundwater ; Water quality ; Groundwater ecology ; Climate change ; Geochemistry ; Soil biogeochemistry
WOS关键词: THERMAL-ENERGY STORAGE ; CLIMATE-CHANGE ; WATER ; AQUIFER ; SOIL ; DEPENDENCE ; IMPACTS ; CARBON ; CALIFORNIA ; DISCHARGE
WOS学科分类: Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向: Engineering ; Geology ; Water Resources
英文摘要:

Climate change and urbanization are currently leading to a warming of the subsurface worldwide with yet unforeseen consequences for groundwater quality. The temperature-sensitivity of chemical and biological processes suggests that small temperature changes driven by current warming should have a detectable effect on the ecology of aquifers and the composition of groundwater itself, but field observations covering temperatures that are environmentally relevant are sparse. The analysis of a large data set provides field-scale evidence that, within the naturally occurring temperature range between 5 and 20 degrees C, temperature affects the quality of groundwater. A difference in temperature of + 1 K is linked to a 4% decline in oxygen saturation and a pH drop of 0.02 due to the accumulation of carbon dioxide. Further, warmer groundwater shows signs of enhanced mineral weathering and higher concentrations of drinking water-relevant elements such as manganese. The observed trends in groundwater quality are consistent with a temperature-associated intensification of microbial metabolic rates and enhanced organic matter mineralization at warmer temperatures either within the aquifers or in the overlying soils. A times series analysis reveals that soil and groundwater temperatures in the studied area have been increasing at a rate of 0.1-0.4 K per decade -comparable to recent global warming- driving subtle, but distinct changes in groundwater pH and oxygen concentrations. The results confirm, that certain but central aspects of groundwater quality (pH, O-2, pCO(2), Mn, DOC) change due to warming, which may increase the costs for purification when drinking water is produced from groundwater resources and may turn some aquifers uninhabitable for groundwater biota.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/137287
Appears in Collections:过去全球变化的重建

Files in This Item:

There are no files associated with this item.


作者单位: IWW Water Ctr, Moritzstr 26, D-45476 Mulheim, Germany

Recommended Citation:
Riedel, Thomas. Temperature-associated changes in groundwater quality[J]. JOURNAL OF HYDROLOGY,2019-01-01,572:206-212
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Riedel, Thomas]'s Articles
百度学术
Similar articles in Baidu Scholar
[Riedel, Thomas]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Riedel, Thomas]‘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.