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Basement Groundwater as a Complementary Resource for Overexploited Stream-Connected Alluvial Aquifers

The use of groundwater from alluvial aquifers largely affects stream discharge by capturing the stream resources. This affects hydrological processes and riparian biodiversity. In this study, complementary water resources are investigated in an effort to ease human pressure on alluvial systems and, eventually, on stream-aquifer relationships. Discharge and hydrochemical data along a 5 km reach of the Tordera River (NE Spain) provide evidence that groundwater fluxes, associated with a regional hydrogeological system related to the basement fracture network, contribute to alluvial recharge and to stream flow. End-member mixing analysis considering upstream discharge, groundwater flows, and human inputs to the stream as major flow sources shows that regional basement groundwater fluxes are responsible for as much as 20 % of the total discharge, which also explains unexpected rises in stream flow. This suggests a possible new approach to local water resources planning, indicating that conjunctive use might actually be feasible

This study was carried out in the context of project CGL2008-06373-C03-03/BTE funded by the Spanish Government (MEC)

info:eu-repo/grantAgreement/MICINN//CGL2008-06373-C03-03/ES/POLUCION DE LAS AGUAS SUBTERRANEAS DE ORIGEN AGRICOLA E INDUSTRIAL: MIGRACION DE CONTAMINANTES, ATENUACION NATURAL E INDUCIDA, Y VULNERABILIDAD/

Springer Verlag

Manager: Ministerio de Educación y Ciencia (Espanya)
Author: Mas-Pla, Josep
Menció i Domingo, Anna
Marsiñach, Albert
Abstract: The use of groundwater from alluvial aquifers largely affects stream discharge by capturing the stream resources. This affects hydrological processes and riparian biodiversity. In this study, complementary water resources are investigated in an effort to ease human pressure on alluvial systems and, eventually, on stream-aquifer relationships. Discharge and hydrochemical data along a 5 km reach of the Tordera River (NE Spain) provide evidence that groundwater fluxes, associated with a regional hydrogeological system related to the basement fracture network, contribute to alluvial recharge and to stream flow. End-member mixing analysis considering upstream discharge, groundwater flows, and human inputs to the stream as major flow sources shows that regional basement groundwater fluxes are responsible for as much as 20 % of the total discharge, which also explains unexpected rises in stream flow. This suggests a possible new approach to local water resources planning, indicating that conjunctive use might actually be feasible
This study was carried out in the context of project CGL2008-06373-C03-03/BTE funded by the Spanish Government (MEC)
Format: application/pdf
Document access: http://hdl.handle.net/10256/12920
Language: eng
Publisher: Springer Verlag
Collection: info:eu-repo/semantics/altIdentifier/doi/10.1007/s11269-012-0186-y
info:eu-repo/semantics/altIdentifier/issn/0920-4741
info:eu-repo/semantics/altIdentifier/eissn/1573-1650
Is part of: info:eu-repo/grantAgreement/MICINN//CGL2008-06373-C03-03/ES/POLUCION DE LAS AGUAS SUBTERRANEAS DE ORIGEN AGRICOLA E INDUSTRIAL: MIGRACION DE CONTAMINANTES, ATENUACION NATURAL E INDUCIDA, Y VULNERABILIDAD/
Rights: Tots els drets reservats
Subject: Recursos hidràulics -- Explotació
Water resources development
Aigües subterrànies -- Escolament
Groundwater flow
Title: Basement Groundwater as a Complementary Resource for Overexploited Stream-Connected Alluvial Aquifers
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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