Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin

Mediterranean basins face significant water scarcity which demands examining long-term data to prospect their trends in water availability and quality. This study focuses on The Onyar River (Inner Catalan basins, NE Spain), to explore its historical streamflow changes, the influencing climatic and l...

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Authors: Córdoba-Ariza, Paula Gabriela, Batalla, Ramon J., Sabater, Sergi, Mas-Pla, Josep
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/24525
Online Access:http://hdl.handle.net/10256/24525
Access Level:Open access
Keyword:Onyar (Catalunya : Curs d'aigua)
Onyar (Catalonia : River)
Cabal (Hidrologia) -- Catalunya -- Onyar (Curs d'aigua)
Streamflow -- Catalonia -- Onyar (River)
Aigua -- Qualitat -- Catalunya -- Onyar (Curs d'aigua)
Water quality -- Catalonia -- Onyar (River)
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repository_id_str
spelling Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basinCórdoba-Ariza, Paula GabrielaBatalla, Ramon J.Sabater, SergiMas-Pla, JosepOnyar (Catalunya : Curs d'aigua)Onyar (Catalonia : River)Cabal (Hidrologia) -- Catalunya -- Onyar (Curs d'aigua)Streamflow -- Catalonia -- Onyar (River)Aigua -- Qualitat -- Catalunya -- Onyar (Curs d'aigua)Water quality -- Catalonia -- Onyar (River)Mediterranean basins face significant water scarcity which demands examining long-term data to prospect their trends in water availability and quality. This study focuses on The Onyar River (Inner Catalan basins, NE Spain), to explore its historical streamflow changes, the influencing climatic and land-use factors, and the consequential impacts on water quality. We analyse key hydro-climatic variables streamflow, precipitation, temperature, and evapotranspiration (both PET and AET) across a 60-year span (1960 -2020) and their relationship with recent stream water chemistry data (2007-2020). We compare these patterns to the changes in land use, and to the variations in water demand according to urban use, livestock, and crop production estimates. Our findings highlight a consistent decline in streamflow, most pronounced over the last two decades, accompanied by an increase in PET, and a probable decrease in groundwater recharge. Notably, these changes co-occurred with higher concentrations of river water ammonium and nitrate. We attribute these patterns to changes in land use such as afforestation and intensive fertilization, as well as increased groundwater withdrawal, particularly during irrigation seasons. Additional factors include growing urban water demand and the discharges of treated wastewater back into the river system. This study offers a comprehensive overview of the declining water quantity and quality in the Onyar River, attributing these trends to an interplay of climatic and anthropogenic factors. The findings underscore the need for integrated water resource management strategies to mitigate the implications of these changesAsociación Ibérica de Limnología2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/24525© Limnética, 2024, vol. 43, núm. 2, p. 333-352Articles publicats (D-CCAA)Córdoba-Ariza, Paula Gabriela Batalla, Ramon J. Sabater, Sergi Mas-Pla, Josep 2024 Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin Limnética 43 2reponame: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/10.23818/limn.43.22info:eu-repo/semantics/altIdentifier/issn/0213-8409info:eu-repo/semantics/altIdentifier/eissn/1989-1806Tots els drets reservatsinfo:eu-repo/semantics/openAccessoai:recercat.cat:10256/245252026-05-29T05:05:01Z
dc.title.none.fl_str_mv Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
title Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
spellingShingle Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
Córdoba-Ariza, Paula Gabriela
Onyar (Catalunya : Curs d'aigua)
Onyar (Catalonia : River)
Cabal (Hidrologia) -- Catalunya -- Onyar (Curs d'aigua)
Streamflow -- Catalonia -- Onyar (River)
Aigua -- Qualitat -- Catalunya -- Onyar (Curs d'aigua)
Water quality -- Catalonia -- Onyar (River)
title_short Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
title_full Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
title_fullStr Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
title_full_unstemmed Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
title_sort Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin
dc.creator.none.fl_str_mv Córdoba-Ariza, Paula Gabriela
Batalla, Ramon J.
Sabater, Sergi
Mas-Pla, Josep
author Córdoba-Ariza, Paula Gabriela
author_facet Córdoba-Ariza, Paula Gabriela
Batalla, Ramon J.
Sabater, Sergi
Mas-Pla, Josep
author_role author
author2 Batalla, Ramon J.
Sabater, Sergi
Mas-Pla, Josep
author2_role author
author
author
dc.subject.none.fl_str_mv Onyar (Catalunya : Curs d'aigua)
Onyar (Catalonia : River)
Cabal (Hidrologia) -- Catalunya -- Onyar (Curs d'aigua)
Streamflow -- Catalonia -- Onyar (River)
Aigua -- Qualitat -- Catalunya -- Onyar (Curs d'aigua)
Water quality -- Catalonia -- Onyar (River)
topic Onyar (Catalunya : Curs d'aigua)
Onyar (Catalonia : River)
Cabal (Hidrologia) -- Catalunya -- Onyar (Curs d'aigua)
Streamflow -- Catalonia -- Onyar (River)
Aigua -- Qualitat -- Catalunya -- Onyar (Curs d'aigua)
Water quality -- Catalonia -- Onyar (River)
description Mediterranean basins face significant water scarcity which demands examining long-term data to prospect their trends in water availability and quality. This study focuses on The Onyar River (Inner Catalan basins, NE Spain), to explore its historical streamflow changes, the influencing climatic and land-use factors, and the consequential impacts on water quality. We analyse key hydro-climatic variables streamflow, precipitation, temperature, and evapotranspiration (both PET and AET) across a 60-year span (1960 -2020) and their relationship with recent stream water chemistry data (2007-2020). We compare these patterns to the changes in land use, and to the variations in water demand according to urban use, livestock, and crop production estimates. Our findings highlight a consistent decline in streamflow, most pronounced over the last two decades, accompanied by an increase in PET, and a probable decrease in groundwater recharge. Notably, these changes co-occurred with higher concentrations of river water ammonium and nitrate. We attribute these patterns to changes in land use such as afforestation and intensive fertilization, as well as increased groundwater withdrawal, particularly during irrigation seasons. Additional factors include growing urban water demand and the discharges of treated wastewater back into the river system. This study offers a comprehensive overview of the declining water quantity and quality in the Onyar River, attributing these trends to an interplay of climatic and anthropogenic factors. The findings underscore the need for integrated water resource management strategies to mitigate the implications of these changes
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/24525
url http://hdl.handle.net/10256/24525
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.23818/limn.43.22
info:eu-repo/semantics/altIdentifier/issn/0213-8409
info:eu-repo/semantics/altIdentifier/eissn/1989-1806
dc.rights.none.fl_str_mv Tots els drets reservats
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Tots els drets reservats
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Asociación Ibérica de Limnología
publisher.none.fl_str_mv Asociación Ibérica de Limnología
dc.source.none.fl_str_mv © Limnética, 2024, vol. 43, núm. 2, p. 333-352
Articles publicats (D-CCAA)
Córdoba-Ariza, Paula Gabriela Batalla, Ramon J. Sabater, Sergi Mas-Pla, Josep 2024 Disclosing the effects of climate, land use, and water demand as drivers of hydrological trends in a Mediterranean river basin Limnética 43 2
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_ 1869413529751126016
score 15,812429

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