Identifying Groundwater Recharge Sites through Environmental Stable Isotopes in an Alluvial Aquifer

Gonzalez-Trinidad, Julián; Pacheco-Guerrero, Anuard; Júnez-Ferreira, Hugo Enrique; Bautista-Capetillo, Carlos; Hernández-Antonio, Arturo

doi:10.3390/w9080569

Cited by 33 publications

(32 citation statements)

References 32 publications

(39 reference statements)

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“…Therefore, oxygen and hydrogen isotopes (δ 18 O and δ 2 H) can be used to determine the origin and path of groundwater and surface waters. In this regard, a similar systematic isotopic fractionation in stable hydrogen and oxygen occurs because their behaviour in the hydrologic cycle is similar [11]. This common behaviour leads to covariance between stable hydrogen and oxygen isotopic concentrations [11] defined by Craig [12] as the Global Meteoric Water Line (GMWL) relation.…”

Section: Introductionmentioning

confidence: 92%

“…In this regard, a similar systematic isotopic fractionation in stable hydrogen and oxygen occurs because their behaviour in the hydrologic cycle is similar [11]. This common behaviour leads to covariance between stable hydrogen and oxygen isotopic concentrations [11] defined by Craig [12] as the Global Meteoric Water Line (GMWL) relation. With the aim of determining groundwater recharge, residence times and water flow paths of oxygen-18 and deuterium have been extensively applied in catchment studies [13].…”

Section: Introductionmentioning

confidence: 92%

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Karst Spring Recharge Areas and Discharge Relationship by Oxygen-18 and Deuterium Isotopes Analyses: A Case Study in Southern Latium Region, Italy

et al. 2020

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Karst aquifer recharge areas are usually difficult to identify because of the complexity of these aquifers’ characteristics. On the other hand, their identification is very important in the aim of protecting the groundwater resources that these aquifers host. Regarding this topic, this paper presents an approach aimed at identifying karst aquifer recharge areas by the application of oxygen-18 and deuterium isotopes composition of groundwater coupled with hydrological features. Oxygen-18 and deuterium isotope composition of Capodacqua di Spigno Spring, in the South of the Latium Region, has been applied with rainfall and discharge values related to the feeding aquifer of this spring. As δ18O and δ2H values of groundwater samples are natural tracers of the recharge area’s elevation, we propose a model, based on the distribution of the basin surfaces involved as recharge areas, in relation to elevations. The model estimates, for any discharge value, the percentage of the topographic area involved in the aquifer recharge. The setting up of this simulated distribution is supported by a Weibull cumulative probability function. The results show that the measured discharges increase as larger areas with lower elevations are involved in the recharge process.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 92%

Karst Spring Recharge Areas and Discharge Relationship by Oxygen-18 and Deuterium Isotopes Analyses: A Case Study in Southern Latium Region, Italy

et al. 2020

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“…The main goal of this research was to evaluate groundwater-surface water interaction in the area of the Zagreb aquifer and to quantify the role of precipitation and the Sava River on the recharge of the aquifer. For this purpose, water stable isotopes (δ 18 O and δ 2 H) from surface water, groundwater, and precipitation were used. Stable isotopes of hydrogen ( 1 H and 2 H) and oxygen ( 16 O and 18 O) are conservative and can be used as tracers in different types of hydrological research [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

“…For this purpose, water stable isotopes (δ 18 O and δ 2 H) from surface water, groundwater, and precipitation were used. Stable isotopes of hydrogen ( 1 H and 2 H) and oxygen ( 16 O and 18 O) are conservative and can be used as tracers in different types of hydrological research [14][15][16][17][18][19][20]. Two-and three-component mixing models were used to quantify different recharge sources together with soil characteristics and hydrogeological properties of the saturated and unsaturated zones.…”

Section: Introductionmentioning

confidence: 99%

Using Water Stable Isotopes for Identifying Groundwater Recharge Sources of the Unconfined Alluvial Zagreb Aquifer (Croatia)

Parlov

Kovač

Nakić

et al. 2019

Water

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The main purpose of this study was to understand the interactions between precipitation, surface water, and groundwater in the Zagreb aquifer system using water stable isotopes. The Zagreb aquifer is of the unconfined type and strongly hydraulically connected to the Sava River. As the groundwater is the main source of drinking water for one million inhabitants, it is essential to investigate each detail of the recharge processes of the aquifer to ensure adequate protection of the groundwater. Measuring the content of water stable isotopes in surface waters and groundwater enabled the creation of two- and three-component mixing models based on the isotopic mass balance for the purpose of the quantification of each recharge component. The mixing models gave ambiguous results. Observation wells equally distant from the Sava River did not have the same recharge component ratio. This indicated that there were more factors (in addition to the distance from the river) that were affecting groundwater recharge, and the properties of the unsaturated zone and surface cover data were therefore also taken into consideration. The thickness of the unsaturated zone and the characteristics of different soil types were identified as important factors in the recharge of the Zagreb aquifer. The areas with high thickness of the unsaturated zone and well-permeable soil had a very similar recharge component ratio to the areas with small thickness of the unsaturated zone but low-permeable soil.

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“…Water-isotope tracing is a powerful tool for conceptualizing hydrological-hydrogeological systems [1][2][3], including the characterization of hydrological conditions, flow-system evolution, groundwater-surface-water exchange, groundwater recharge and water-source provenance [4][5][6][7]. The repertoire of isotope tracers continues to grow, offering increasing insight and versatility [8][9][10][11]. As such, isotopes increasingly underpin integrated water resources management (IWRM) [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Water–Isotope Capacity Building and Demonstration in a Developing World Context: Isotopic Baseline and Conceptualization of a Lake Malawi Catchment

Banda¹,

Rivett

Kalin

et al. 2019

Water

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Developing countries such as Malawi require improved access to isotope tracer tools to better characterize and manage water resources threatened by land development, deforestation and climate change. This is the first published study to use an isotope facility developed in Malawi for this purpose, instead of relying upon sample analyses from abroad. Results from this new facility are used to evaluate an important Lake Malawi catchment in the Rift Valley. This work successfully established a stable-isotope baseline, hydrochemical signatures, and system conceptualization against which future policy change and management strategies may be measured. Precipitation isotopic composition was consistent with the Global Meteoric Water Line, but varied, confirming different precipitation systems nationally. Groundwater largely followed a Local Meteoric Water Line, with limited isotopic variation indicating predominant areal groundwater recharge, but with dry-season evaporative enrichment of groundwater near Lake Malawi. Surface-water isotopes widely varied with local precipitation, suggesting the latter accounted for wet-season river flows, but upstream dambo (complex wetlands occupying a shallow, seasonal waterlogged depression) helped sustain dry-season flows. Isotope capacity reinforced water-resource conceptualization and provenance in a hydrologically complex, but not atypical, Rift Valley system, exhibiting a noted complexity of groundwater–surface-water interactions. The latter, critical to integrated water resource management, requires more focused study, to which an expanded array of isotopes will contribute to tracking Sustainable Development Goal 6 targets. This study and future catchment studies should help underpin Malawian water-resource policy implementation on several identified fronts.

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Identifying Groundwater Recharge Sites through Environmental Stable Isotopes in an Alluvial Aquifer

Abstract: The groundwater samples were clustered into four groups. The clustering of the samples led to the finding that streamflows play a significant role in the hydrological balance as a source of local recharge to the aquifer.

Cited by 33 publications

References 32 publications

Karst Spring Recharge Areas and Discharge Relationship by Oxygen-18 and Deuterium Isotopes Analyses: A Case Study in Southern Latium Region, Italy

Karst Spring Recharge Areas and Discharge Relationship by Oxygen-18 and Deuterium Isotopes Analyses: A Case Study in Southern Latium Region, Italy

Using Water Stable Isotopes for Identifying Groundwater Recharge Sources of the Unconfined Alluvial Zagreb Aquifer (Croatia)

Water–Isotope Capacity Building and Demonstration in a Developing World Context: Isotopic Baseline and Conceptualization of a Lake Malawi Catchment

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