Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)

19 p.

Detalles Bibliográficos
Autores: Hornero Díaz, Jorge Enrique, Ortega, Lucia, Manzano Arellano, Marisol
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::a4b5734450b9348aa528b04ee39114e3
Acceso en línea:http://hdl.handle.net/10261/430096
https://api.elsevier.com/content/abstract/scopus_id/105023123260
Access Level:acceso abierto
Palabra clave:Water management
Groundwater-river interaction
Hydrochemistry
Isotopes
PCA
Semi-arid regions
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spelling Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)Hornero Díaz, Jorge EnriqueOrtega, LuciaManzano Arellano, MarisolWater managementGroundwater-river interactionHydrochemistryIsotopesPCASemi-arid regions19 p.[EN] Understanding groundwater-surface water interactions is essential for sustainable water management in semi-arid regions, particularly in southern Europe, where water scarcity is increasing. Accurate knowledge of groundwater-river interactions is necessary to developing realistic conceptual models. The study focuses on the Mundo River in southeast Spain and its relationship with the scarcely gauged Alcadozo aquifer, characterized by fractured carbonated formations. To assess flow paths, recharge sources, residence times and groundwater-river interactions, major ions, stable isotopes (δ18O, δ2H), tritium (3H), strontium isotopes (87Sr/86Sr), and radon (222Rn) was measured in 143 groundwater and 24 surface water samples in period 2008–2014. Principal Component Analysis (PCA) was a paramount tool identifying zones of diffuse and concentrated groundwater discharge to the Mundo River. Findings reveal that groundwater discharge occurs primarily concentrated in the central zone while being more diffuse in the eastern and western parts. Hydrochemical facies and 87Sr/86Sr indicate that discharging groundwater in the western part results from water-rock interactions, whereas the central and eastern segments are affected by agricultural influences. Tritium indicates that the discharging groundwater is relatively young and distinguishes between two groups with varying residence times: one representing currently recharged groundwater and the other linked to older groundwater with 1–3 half-life periods. The conceptual model supported by PCA illustrates that the Mundo River is sustained by groundwater contributions from varied flow paths, influenced by precipitation, topography, and rock fractures. The study provides essential insights for future management of water resources in regions with limited groundwater monitoring, especially under climate and land-use pressures.This study is part of the work undertaken under projects REDESAC (CLG2009-12910-C03), funded by the 663 Spanish Ministry of Science and Innovation and ALCAMOD (grant No. 2099), funded by the Geological and Mining Institute of Spain.Peer reviewedElsevierMinisterio de Ciencia e Innovación (España)CSIC - Instituto Geológico y Minero de España (IGME)Hornero Díaz, Jorge Enrique [0000-0003-3913-1748]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/430096https://api.elsevier.com/content/abstract/scopus_id/105023123260reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement///CLG2009-12910-C03https://doi.org/10.1016/j.gsd.2025.101555Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::a4b5734450b9348aa528b04ee39114e32026-05-22T06:33:51Z
dc.title.none.fl_str_mv Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
title Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
spellingShingle Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
Hornero Díaz, Jorge Enrique
Water management
Groundwater-river interaction
Hydrochemistry
Isotopes
PCA
Semi-arid regions
title_short Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
title_full Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
title_fullStr Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
title_full_unstemmed Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
title_sort Elucidating groundwater-surface water interactions in scarcely gauged carbonated systems of semi-arid zones with environmental tracers. The Alcadozo aquifer and Mundo River case (SE Spain)
dc.creator.none.fl_str_mv Hornero Díaz, Jorge Enrique
Ortega, Lucia
Manzano Arellano, Marisol
author Hornero Díaz, Jorge Enrique
author_facet Hornero Díaz, Jorge Enrique
Ortega, Lucia
Manzano Arellano, Marisol
author_role author
author2 Ortega, Lucia
Manzano Arellano, Marisol
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
CSIC - Instituto Geológico y Minero de España (IGME)
Hornero Díaz, Jorge Enrique [0000-0003-3913-1748]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Water management
Groundwater-river interaction
Hydrochemistry
Isotopes
PCA
Semi-arid regions
topic Water management
Groundwater-river interaction
Hydrochemistry
Isotopes
PCA
Semi-arid regions
description 19 p.
publishDate 2025
dc.date.none.fl_str_mv 2025
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/430096
https://api.elsevier.com/content/abstract/scopus_id/105023123260
url http://hdl.handle.net/10261/430096
https://api.elsevier.com/content/abstract/scopus_id/105023123260
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement///CLG2009-12910-C03
https://doi.org/10.1016/j.gsd.2025.101555
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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