Knowledge Resource Center for Ecological Environment in Arid Area
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
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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. |
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