Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)

Non-point agricultural pollution is a major concern in groundwater management. To investigate nitrate input to the subsurface through groundwater recharge, thirteen natural springs were sampled. Discharge, electrical conductivity (EC), nitrate concentration, pH value and water temperature were monit...

Descripción completa

Detalles Bibliográficos
Autores: Boy Roura, Mercè, Menció i Domingo, Anna, Mas-Pla, Josep
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/11539
Acceso en línea:http://hdl.handle.net/10256/11539
Access Level:acceso embargado
Palabra clave:Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Nitrats -- Aspectes ambientals
Nitrates -- Environmental aspects
id ES_68e331ee2a5d264bccca6210c32c7c5b
oai_identifier_str oai:recercat.cat:10256/11539
network_acronym_str ES
network_name_str España
repository_id_str
spelling Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)Boy Roura, MercèMenció i Domingo, AnnaMas-Pla, JosepAigües subterrànies -- ContaminacióGroundwater -- PollutionNitrats -- Aspectes ambientalsNitrates -- Environmental aspectsNon-point agricultural pollution is a major concern in groundwater management. To investigate nitrate input to the subsurface through groundwater recharge, thirteen natural springs were sampled. Discharge, electrical conductivity (EC), nitrate concentration, pH value and water temperature were monitored every two weeks from January 2010 till February 2011 at selected springs in the Osona region (NE Spain). Two extensive hydrochemical analyses were also conducted at the beginning and at the end of the survey. Springs are classified in four groups describing their hydrological response, based on discharge, EC and nitrate data. Geostatistical analysis provides an additional insight into the discharge and nitrate temporal pattern. Even though discharge and EC can be related to specific hydrogeological behaviours, nitrate content shows uniform values in most of the springs with only a minor influence from external factors such as rainfall events, fertilisation regimes and geological traits. Such evenness of outflow might be attributed to a homogenisation of the subsurface processes that determine nitrate infiltration after decades of intensive fertilisation using pig manure. Accumulated nitrate mass load and variograms confirm this result. Assuming that spring data are representative of nitrate leaching towards the underlying aquifer, nitrate content of infiltrating recharge in shallow aquifers should therefore show a steady value over time with only small fluctuations due to natural processes. Nevertheless, temporal fluctuations in nitrate content in aquifers could be also attributed to flow regime alterations due to human groundwater withdrawalThis study has been financed by the Spanish Government's CGL2011-29975-C04-04 project, by the Catalan Government's 2008ACOM00041 project, and by the local authorities of the Consell Comarcal d'OsonaElsevierMinisterio de Ciencia e Innovación (Espanya)info2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10256/11539© Science of the Total Environment, 2013, vol. 452–453, p. 433–445Articles publicats (D-CCAA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.scitotenv.2013.02.065info:eu-repo/semantics/altIdentifier/issn/0048-9697info:eu-repo/grantAgreement/MICINN//CGL2011-29975-C04-04Tots els drets reservatsinfo:eu-repo/semantics/embargoedAccessoai:recercat.cat:10256/115392026-05-29T05:05:01Z
dc.title.none.fl_str_mv Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
title Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
spellingShingle Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
Boy Roura, Mercè
Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Nitrats -- Aspectes ambientals
Nitrates -- Environmental aspects
title_short Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
title_full Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
title_fullStr Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
title_full_unstemmed Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
title_sort Temporal analysis of spring water data to assess nitrate inputs to groundwater in an agricultural area (Osona, NE Spain)
dc.creator.none.fl_str_mv Boy Roura, Mercè
Menció i Domingo, Anna
Mas-Pla, Josep
author Boy Roura, Mercè
author_facet Boy Roura, Mercè
Menció i Domingo, Anna
Mas-Pla, Josep
author_role author
author2 Menció i Domingo, Anna
Mas-Pla, Josep
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (Espanya)
dc.subject.none.fl_str_mv Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Nitrats -- Aspectes ambientals
Nitrates -- Environmental aspects
topic Aigües subterrànies -- Contaminació
Groundwater -- Pollution
Nitrats -- Aspectes ambientals
Nitrates -- Environmental aspects
description Non-point agricultural pollution is a major concern in groundwater management. To investigate nitrate input to the subsurface through groundwater recharge, thirteen natural springs were sampled. Discharge, electrical conductivity (EC), nitrate concentration, pH value and water temperature were monitored every two weeks from January 2010 till February 2011 at selected springs in the Osona region (NE Spain). Two extensive hydrochemical analyses were also conducted at the beginning and at the end of the survey. Springs are classified in four groups describing their hydrological response, based on discharge, EC and nitrate data. Geostatistical analysis provides an additional insight into the discharge and nitrate temporal pattern. Even though discharge and EC can be related to specific hydrogeological behaviours, nitrate content shows uniform values in most of the springs with only a minor influence from external factors such as rainfall events, fertilisation regimes and geological traits. Such evenness of outflow might be attributed to a homogenisation of the subsurface processes that determine nitrate infiltration after decades of intensive fertilisation using pig manure. Accumulated nitrate mass load and variograms confirm this result. Assuming that spring data are representative of nitrate leaching towards the underlying aquifer, nitrate content of infiltrating recharge in shallow aquifers should therefore show a steady value over time with only small fluctuations due to natural processes. Nevertheless, temporal fluctuations in nitrate content in aquifers could be also attributed to flow regime alterations due to human groundwater withdrawal
publishDate 2013
dc.date.none.fl_str_mv 2013
info
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/11539
url http://hdl.handle.net/10256/11539
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/doi:10.1016/j.scitotenv.2013.02.065
info:eu-repo/semantics/altIdentifier/issn/0048-9697
info:eu-repo/grantAgreement/MICINN//CGL2011-29975-C04-04
dc.rights.none.fl_str_mv Tots els drets reservats
info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv Tots els drets reservats
eu_rights_str_mv embargoedAccess
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 © Science of the Total Environment, 2013, vol. 452–453, p. 433–445
Articles publicats (D-CCAA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869409992050737152
score 15.81155

Similares en LA Referencia