Hydrochemical and isotopic characterization of the Region Carbonífera aquifer: An example of hydrogeological systems in the semi-arid climates of northeastern Mexico

Cruz, Ramón Yosvanis Batista; Liotta, Marcello; Batista-Rodríguez, José A.; Zamora, Yalina Montecelos; Kretzschmar, Thomas; Rodríguez, Iliana Margarita de la Garza; Gutiérrez, Luis Eutiquio Canales; Díaz-Martínez, Roberto; Moreno, Jesús Antonio Blanco; Carmenates, Yuri Almaguer; Vega, Antonio Rodríguez; Saucedo, Felipe de Jesús López

doi:10.1016/j.apgeochem.2022.105307

Cited by 2 publications

(1 citation statement)

References 38 publications

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“…Although salinity of groundwater has been reported in temperate regions [7], most reports are issued for arid, semiarid, and coastal areas [4,5,8,13], and these primarily concern their suitability for irrigation [4,14,23]. In recent years, aquifers worldwide have seen an increase in nitrate concentrations and their occurrence traced to an excess of Nfertilizers [12,24].…”

Section: Introductionmentioning

confidence: 99%

Enrichment and Temporal Trends of Groundwater Salinity in Central Mexico

Colmenero-Chacón,

Morales-deAvila,

Gutiérrez

et al. 2023

Hydrology

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Groundwater salinization is a major threat to the water supply in coastal and arid areas, a threat that is expected to worsen by increased groundwater withdrawals and by global warming. Groundwater quality in Central Mexico may be at risk of salinization due to its arid climate and since groundwater is the primary source for drinking and agriculture water. Only a handful of studies on groundwater salinization have been reported for this region, most constrained to a small area and without trend analyses. To determine the extent of salinization, total dissolved solids (TDS), sodium (Na+), nitrate as nitrogen (NO3-N) and sodium adsorption ratio (SAR) are commonly used. Available water quality data for about 200 wells, sampled annually between 2012 and 2021, were used to map the spatial distribution of NO3-N, TDS, Na+, and SAR. Upward trends and Spearman correlation were also determined. The study area was subdivided into three sections to estimate the impact of climate and lithologies on groundwater salinity. The results showed that human activities (agriculture) and dissolution of carbonate and evaporite rocks were major sources of salinity, and evaporation an enriching factor. Temporal trends occurred in only a few (about 7%) wells, primarily in NO3-N. The water quality for irrigation was generally good, (SAR < 10 in 95% of samples); however, eight wells contained water hazardous to soil (TDS > 1750 mg L−1 and SAR > 9). The results detected one aquifer with consistently high concentrations and upward trends and eight lesser impacted aquifers. Identifying the wells with upward trends is important in narrowing down the possible causes of their concentration increase with time and to develop strategies that will infuse sustainability to groundwater management.

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Section: Introductionmentioning

confidence: 99%

Enrichment and Temporal Trends of Groundwater Salinity in Central Mexico

Colmenero-Chacón,

Morales-deAvila,

Gutiérrez

et al. 2023

Hydrology

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Procesos hidrogeoquímicos e isotópicos que controlan la variabilidad química en un sector del acuífero Región Carbonífera, Coahuila

Batista-Cruz,

Montecelos-Zamora,

Batista-Rodríguez

et al. 2024

Tecnol. cienc. agua

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El Acuífero Región Carbonífera es uno de los 28 sistemas hidrogeológicos existentes en el estado de Coahuila, y también de los que más presiones sufre debido a la actividad minera y la sobreexplotación. Este estudio se enmarca en la porción oeste de dicho acuífero, abarcando el Ejido Morelos y la Colonia El Nacimiento, ambos en el municipio Melchor Múzquiz. En dicha área se tomaron muestras en 14 sitios (4 pozos, 6 norias, 2 manantiales y 2 secciones del río Sabinas), con el objetivo de caracterizar desde el punto de vista hidrogeoquímico e isotópico estos cuerpos hídricos y así obtener un modelo conceptual de dicho sector. Los resultados obtenidos muestran la variabilidad química de las aguas muestreadas, clasificándose como aguas de tipo bicarbonatada-cálcica, bicarbonatada-sódica, sulfatada-cálcica y clorurada-sódica, lo cual sugiere la ocurrencia de variados procesos que afectan la calidad del recurso, entre ellos la salinidad. Desde el punto de vista isotópico se propone un origen meteórico para la mayoría de los cuerpos hídricos en estudio, cuya zona de recarga proviene de la sierra de Santa Rosa. Sin embargo, procesos como la evaporación superficial, la disolución de sales, y el intercambio iónico generan variabilidad química y fraccionamiento isotópico, lo que condiciona firmas isotópicas más pesadas, y aguas más enriquecidas y salinas. Estos elementos se representan en un modelo geohidrológico e isotópico conceptual, que integra ambas interpretaciones y muestra la complejidad hidrogeológica de la región en términos de calidad del recurso.

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Hydrochemical and isotopic characterization of the Region Carbonífera aquifer: An example of hydrogeological systems in the semi-arid climates of northeastern Mexico

Cited by 2 publications

References 38 publications

Enrichment and Temporal Trends of Groundwater Salinity in Central Mexico

Enrichment and Temporal Trends of Groundwater Salinity in Central Mexico

Procesos hidrogeoquímicos e isotópicos que controlan la variabilidad química en un sector del acuífero Región Carbonífera, Coahuila

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