干旱区生态环境知识资源中心(Arid): Water table variations in the hyperarid Atacama Desert: Role of the increasing groundwater extraction in the pampa del tamarugal (Northern Chile)

Arid

DOI	10.1016/j.jaridenv.2019.05.007
	Water table variations in the hyperarid Atacama Desert: Role of the increasing groundwater extraction in the pampa del tamarugal (Northern Chile)
	Viguier, Benoit 1,2; Jourde, Herve 3; Leonardi, Veronique 3; Daniele, Linda 1,2; Batiot-Guilhe, Christelle 3; Favreau, Guillaume 3,4; De Montety, Veronique 3
通讯作者	Viguier, Benoit
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2019
卷号	168 页码:9-16
英文摘要	In the hyperarid Atacama Desert (Northern Chile), the economic and social development is supported using fossil groundwater. The groundwater extraction (GWE) has significantly increased over the last 30 years, reaching similar to 4.2 m(3).s(-1) in 2018 (+1890%) at the Pampa del Tamarugal Aquifer (PTA). But opposite assumptions lead to uncertainties concerning the role of the increasing anthropogenic pressures and the ephemeral recharge events in the water table (WT) variations. This paper analyzes: (i) the long-term groundwater levels changes between the late 1950s (post Saltpeter Work) and the early 2010s, and (ii) the short-term response of groundwater levels, based on the analysis of the 1998-2018 WT time series at 10 observation boreholes. Results indicate that the WT variations in space and time are strongly related to the anthropogenic pressure changes. Since the late 1950s, the WT is declining in the major part of the PTA. Nevertheless, local reduction of GWE together with ephemeral recharge events in alluvial fans allowed local WT rises. But after a large GWE increase (+114%) between 2004 and 2006, all observation boreholes highlight a general WT decline (-9.8 +/- 5.8 cm.yr(-1)). Over the years, anthropogenic pressures became the dominant factor of the WT variations and led to overuse the aquifer.
英文关键词	Arid areas Water table Groundwater resource Overexploitation Pampa del Tamarugal Aquifer
类型	Article
语种	英语
国家	Chile ; France
收录类别	SCI-E
WOS记录号	WOS:000472696100002
WOS关键词	PROSOPIS-TAMARUGO ; ALLUVIAL-FAN ; RECHARGE ; AQUIFER ; FLOW ; OVEREXPLOITATION ; INFILTRATION ; HYDROLOGY ; TARAPACA ; BASIN
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	French National Research Institute for Sustainable Development
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216765
作者单位	1.Univ Chile, Fac Ciencias Fis & Matemat, Ctr Excelencia Geotermia Los Andes CEGA, Santiago, Chile; 2.Univ Chile, Fac Ciencias Fis & Matemat, Dept Geol, Santiago, Chile; 3.Univ Montpellier, CNRS, IRD, HydroSci Montpellier HSM, Montpellier, France; 4.Univ Grenoble Alpes, CNRS, IRD, IGE, Grenoble, France
推荐引用方式 GB/T 7714	Viguier, Benoit,Jourde, Herve,Leonardi, Veronique,et al. Water table variations in the hyperarid Atacama Desert: Role of the increasing groundwater extraction in the pampa del tamarugal (Northern Chile)[J]. French National Research Institute for Sustainable Development,2019,168:9-16.
APA	Viguier, Benoit.,Jourde, Herve.,Leonardi, Veronique.,Daniele, Linda.,Batiot-Guilhe, Christelle.,...&De Montety, Veronique.(2019).Water table variations in the hyperarid Atacama Desert: Role of the increasing groundwater extraction in the pampa del tamarugal (Northern Chile).JOURNAL OF ARID ENVIRONMENTS,168,9-16.
MLA	Viguier, Benoit,et al."Water table variations in the hyperarid Atacama Desert: Role of the increasing groundwater extraction in the pampa del tamarugal (Northern Chile)".JOURNAL OF ARID ENVIRONMENTS 168(2019):9-16.