Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution

16 páginas, 7 figuras y 4 tablas

Detalles Bibliográficos
Autores: Arauzo, Mercedes, Martínez Bastida, Juan José
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/126831
Acceso en línea:http://hdl.handle.net/10261/126831
Access Level:acceso abierto
Palabra clave:Groundwater
Vulnerability
Nitrate pollution
Nitrate vulnerable zones
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spelling Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollutionArauzo, MercedesMartínez Bastida, Juan JoséGroundwaterVulnerabilityNitrate pollutionNitrate vulnerable zones16 páginas, 7 figuras y 4 tablasThree Tertiary aquifers and one Mesozoic aquifer located in the two neighbouring Autonomous Communities of Madrid and Castilla-La Mancha (central Spain) were selected to study the environmental factors affecting groundwater pollution by nitrate. The majority of the territory was subject to a very high degree of human impact, with it being difficult to identify which potential sources of nitrogen were responsible for the observed cases of groundwater nitrate pollution. The objectives were: (1) to obtain a better understanding of nitrate distribution in the aquifers during a period of 25 years; (2) to determine the relative contribution of several environmental parameters (including land use) that are often used in groundwater vulnerability assessment using principal components analysis (PCA); (3) to make a critical review of the current criteria used for the designation of nitrate vulnerable zones (NVZs; Directive 91/676/EEC) in this territory; and (4) to discuss the concept of groundwater vulnerability to nitrate vs. groundwater nitrate pollution. Contour maps of nitrate contents in the four aquifers from 1985 to 2010 showed a persistent problem of nitrate pollution affecting wide areas of the Tertiary aquifers (subjected to a high risk of anthropogenic impact), whereas the Mesozoic aquifer remained unpolluted (protected by non-polluting land uses). The PCA demonstrated that the main risk of groundwater nitrate pollution stemmed from the interaction between intrinsic vulnerability (related to hydrogeological factors and soil media) and land use; and this, together with groundwater flow, allowed us to explain the possible sources of nitrogen at each sampling point. The current demarcations of NVZs in central Spain reveal a lack of coordination between administrations and poorly defined criteria. Our results show the need to redefine these NVZs by mapping vulnerability to nitrate pollution within this territory based on the environmental factors highlighted by the PCA.This research was funded by the Autonomous Community of Madrid, the European Social Fund (GR/AMB/0745/ 2004) and Spain’s Ministry of Science and Innovation (AGL2011- 29861). The Confederacio´n Hidrográfica del Tajo provided piezometric and hydrochemical data.Peer reviewedSpringer NatureComunidad de MadridMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201520152015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/126831reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s12665-014-3989-8Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1268312026-05-22T06:33:51Z
dc.title.none.fl_str_mv Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
title Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
spellingShingle Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
Arauzo, Mercedes
Groundwater
Vulnerability
Nitrate pollution
Nitrate vulnerable zones
title_short Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
title_full Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
title_fullStr Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
title_full_unstemmed Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
title_sort Environmental factors affecting diffuse nitrate pollution in the major aquifers of central Spain: groundwater vulnerability vs. groundwater pollution
dc.creator.none.fl_str_mv Arauzo, Mercedes
Martínez Bastida, Juan José
author Arauzo, Mercedes
author_facet Arauzo, Mercedes
Martínez Bastida, Juan José
author_role author
author2 Martínez Bastida, Juan José
author2_role author
dc.contributor.none.fl_str_mv Comunidad de Madrid
Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Groundwater
Vulnerability
Nitrate pollution
Nitrate vulnerable zones
topic Groundwater
Vulnerability
Nitrate pollution
Nitrate vulnerable zones
description 16 páginas, 7 figuras y 4 tablas
publishDate 2015
dc.date.none.fl_str_mv 2015
2015
2015
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/10261/126831
url http://hdl.handle.net/10261/126831
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s12665-014-3989-8
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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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score 15,811543

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