Tracing stream leakage towards an alluvial aquifer in a mountain basin using environmental isotopes
dc.contributor.author
dc.date.accessioned
2016-10-25T10:38:27Z
dc.date.available
2016-10-25T10:38:27Z
dc.date.issued
2013-05-01
dc.identifier.issn
0883-2927
dc.identifier.uri
dc.description.abstract
Stream-aquifer relationships in mountain basins are of great relevance because they control the water balance and, with it, the amount of resources (whether surface water or ground water) available for ecological and human demands. In this paper, this relationship is studied using environmental isotopes (δ18O and δD) to identify the occurrence of stream recharge in the Arbúcies River basin (NE Spain). Isotopic data from 51 natural springs define the local altitudinal gradient. This function is weighted by the proportional area above each point, given by the hypsometric curve, in order to estimate the isotopic stream water content as the contribution of runoff from incremental elevations. Stream water isotopes from two surveys are compared with hypsometrically averaged isotopic values to check for the appropriateness of this approach. Results show that it is more suitable when subsurface flows from surface formations, such as alluvial deposits, are the main contributors to stream discharge than when it derives from a single rainfall event. The characterization of stream isotope values is used as a key factor in identifying stream leakage to an unconfined alluvial aquifer in the lower reach of the Arbúcies River
dc.description.sponsorship
Its development benefits from research Project CGL-2008-06373-C03-03 and continued under Project CGL-2011-29975-C04-04 of the Spanish Government.
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
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/
info:eu-repo/grantAgreement/MICINN//CGL2011-29975-C04-04/ES/ATENUACION NATURAL E INDUCIDA DE LA CONTAMINACION DE ORIGEN AGRICOLA E INDUSTRIAL EN AGUAS SUBTERRANEAS./
dc.relation.isformatof
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.apgeochem.2012.10.016
dc.relation.ispartof
© Applied Geochemistry, 2013, vol. 32, p. 85-94
dc.relation.ispartofseries
Articles publicats (D-CCAA)
dc.rights
Tots els drets reservats
dc.subject
dc.title
Tracing stream leakage towards an alluvial aquifer in a mountain basin using environmental isotopes
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
017571
dc.contributor.funder
dc.relation.ProjectAcronym