干旱区生态环境知识资源中心(Arid): Isotopic characterisation and dating of groundwater recharge mechanisms in crystalline fractured aquifers: example of the semi-arid Banabuiu watershed (Brazil)

Arid

DOI	10.1080/10256016.2020.1797275
	Isotopic characterisation and dating of groundwater recharge mechanisms in crystalline fractured aquifers: example of the semi-arid Banabuiu watershed (Brazil)
	Kreis, Marjorie; Taupin, Jean-Denis; Patris, Nicolas; Martins, Eduardo S. P. R.
通讯作者	Kreis, M
来源期刊	ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES
ISSN	1025-6016
EISSN	1477-2639
出版年	2020
卷号	56 期号:5-7 页码:418-430
英文摘要	Sustainable groundwater management implies a good knowledge of recharge processes, especially in areas with water deficit, like the semi-arid region of Banabuiu watershed (Ceara State, Northeast of Brazil). In this zone, phreatic aquifers consist of Precambrian crystalline fractured reservoirs characterised by a high spatial anisotropy, both in terms of hydrodynamics and water quality. This study implemented a multi-tracer approach (O-18,H-2,C-14,H-3, CFC, SF6), combined with hydrodynamic data (i.e. groundwater levels) to identify the groundwater recharge origin and the recharge mechanisms, and to estimate the groundwater residence time. At the basin scale, hydrodynamic data and local observations indicated the high reactivity of aquifers to precipitation and suggested that infiltration processes occur mostly through preferential infiltration zones. Stable isotope data showed a major contribution of evaporated surface water in the recharge process from many artificial or natural ponds. Groundwater residence time determination highlighted the spatio-temporal heterogeneity of flow path organisation within aquifers, with variable contributions between fast vertical flow (present-day end-member; 15-85 %) and a slower horizontal flow (old end-member <1960), underlining the vulnerability of aquifers to present-day environmental stress or pollution.
英文关键词	Age dating Brazil carbon-14 crystalline aquifers groundwater recharge hydrogen-2 hydrogen-3 isotope hydrology multitracer approach oxygen-18 semi-arid stable isotopes
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000555208600001
WOS关键词	PRECIPITATION
WOS类目	Chemistry, Inorganic & Nuclear ; Environmental Sciences
WOS研究方向	Chemistry ; 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/2XILL650/325373
作者单位	[Kreis, Marjorie; Taupin, Jean-Denis; Patris, Nicolas] Univ Montpellier, CNRS, HSM, IRD, Montpellier, France; [Kreis, Marjorie] Univ Fed Ceara, Dept Hydraul & Environm Engn, Fortaleza, Ceara, Brazil; [Martins, Eduardo S. P. R.] FUNCEME, Fortaleza, Ceara, Brazil
推荐引用方式 GB/T 7714	Kreis, Marjorie,Taupin, Jean-Denis,Patris, Nicolas,et al. Isotopic characterisation and dating of groundwater recharge mechanisms in crystalline fractured aquifers: example of the semi-arid Banabuiu watershed (Brazil)[J]. French National Research Institute for Sustainable Development,2020,56(5-7):418-430.
APA	Kreis, Marjorie,Taupin, Jean-Denis,Patris, Nicolas,&Martins, Eduardo S. P. R..(2020).Isotopic characterisation and dating of groundwater recharge mechanisms in crystalline fractured aquifers: example of the semi-arid Banabuiu watershed (Brazil).ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES,56(5-7),418-430.
MLA	Kreis, Marjorie,et al."Isotopic characterisation and dating of groundwater recharge mechanisms in crystalline fractured aquifers: example of the semi-arid Banabuiu watershed (Brazil)".ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 56.5-7(2020):418-430.