气候变化领域集成服务门户(CCPortal): Using hydraulic head; chloride and electrical conductivity data to distinguish between mountain-front and mountain-block recharge to basin aquifers

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DOI	10.5194/hess-22-1629-2018
	Using hydraulic head; chloride and electrical conductivity data to distinguish between mountain-front and mountain-block recharge to basin aquifers
	Bresciani E.; Cranswick R.H.; Banks E.W.; Batlle-Aguilar J.; Cook P.G.; Batelaan O.
发表日期	2018
ISSN	1027-5606
起始页码	1629
结束页码	1648
卷号	22 期号:2
英文摘要	Numerous basin aquifers in arid and semi-arid regions of the world derive a significant portion of their recharge from adjacent mountains. Such recharge can effectively occur through either stream infiltration in the mountain-front zone (mountain-front recharge, MFR) or subsurface flow from the mountain (mountain-block recharge, MBR). While a thorough understanding of recharge mechanisms is critical for conceptualizing and managing groundwater systems, distinguishing between MFR and MBR is difficult. We present an approach that uses hydraulic head, chloride and electrical conductivity (EC) data to distinguish between MFR and MBR. These variables are inexpensive to measure, and may be readily available from hydrogeological databases in many cases. Hydraulic heads can provide information on groundwater flow directions and stream-aquifer interactions, while chloride concentrations and EC values can be used to distinguish between different water sources if these have a distinct signature. Such information can provide evidence for the occurrence or absence of MFR and MBR. This approach is tested through application to the Adelaide Plains basin, South Australia. The recharge mechanisms of this basin have long been debated, in part due to difficulties in understanding the hydraulic role of faults. Both hydraulic head and chloride (equivalently, EC) data consistently suggest that streams are gaining in the adjacent Mount Lofty Ranges and losing when entering the basin. Moreover, the data indicate that not only the Quaternary aquifers but also the deeper Tertiary aquifers are recharged through MFR and not MBR. It is expected that this finding will have a significant impact on the management of water resources in the region. This study demonstrates the relevance of using hydraulic head, chloride and EC data to distinguish between MFR and MBR. © Author(s) 2018.
语种	英语
scopus关键词	Aquifers; Boreholes; Chlorine compounds; Electric conductivity; Groundwater; Groundwater flow; Groundwater resources; Hydrogeology; Landforms; Water management; Water resources; Arid and semi-arid regions; Chloride concentrations; Electrical conductivity; Groundwater flow directions; Groundwater system; Hydrogeological database; Quaternary aquifers; Recharge mechanisms; Recharging (underground waters); aquifer; chloride; database; electrical conductivity; front; groundwater; groundwater flow; hydraulic head; hydrogeology; recharge; stream; subsurface flow; Adelaide; Australia; Mount Lofty Ranges; South Australia
来源期刊	Hydrology and Earth System Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160093
作者单位	Bresciani, E., National Centre for Groundwater Research and Training, School of the Environment, Flinders University, Adelaide, SA 5001, Australia, Korea Institute of Science and Technology, Seoul, 02792, South Korea; Cranswick, R.H., National Centre for Groundwater Research and Training, School of the Environment, Flinders University, Adelaide, SA 5001, Australia, Department of Environment, Water and Natural Resources, Government of South Australia, Adelaide, SA 5000, Australia; Banks, E.W., National Centre for Groundwater Research and Training, School of the Environment, Flinders University, Adelaide, SA 5001, Australia; Batlle-Aguilar, J., National Centre for Groundwater Research and Training, School of the Environment, Flinders University, Adelaide, SA 5001, Australia, Kansas Geological Survey, University of Kansas, Lawrence, KS 66047, United States; Cook, P.G., National Centre for Groundwater Research and Training, School of the Environment, Flinders University, Adelaide, SA 5001, Australia; B...
推荐引用方式 GB/T 7714	Bresciani E.,Cranswick R.H.,Banks E.W.,et al. Using hydraulic head; chloride and electrical conductivity data to distinguish between mountain-front and mountain-block recharge to basin aquifers[J],2018,22(2).
APA	Bresciani E.,Cranswick R.H.,Banks E.W.,Batlle-Aguilar J.,Cook P.G.,&Batelaan O..(2018).Using hydraulic head; chloride and electrical conductivity data to distinguish between mountain-front and mountain-block recharge to basin aquifers.Hydrology and Earth System Sciences,22(2).
MLA	Bresciani E.,et al."Using hydraulic head; chloride and electrical conductivity data to distinguish between mountain-front and mountain-block recharge to basin aquifers".Hydrology and Earth System Sciences 22.2(2018).