Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://repositorio-aberto.up.pt/handle/10216/82506 |
Resumo: | This study evaluates climate change potential impacts on irrigated agriculture in the Guadiana river basin,in the south of Portugal, by running long-term soil water balance simulations using the ISAREG modeland taking into consideration the maximum potential yield. The ISAREG simulations were focused in aset of the most locally representative crops to assess the evolution of net and total water requirements,considering a monthly time step for two 30-year future periods,(20112040) and (20412070). Referenceevapotranspiration was estimated using the temperature-based HargreavesSamani equation, and thesimulations were performed using, as inputs, a combination of five climate change scenarios built usingthe Ensemble-Delta technique fromCMIP3 climateprojectionsdatasets to setdifferent alternative climatechange bracketing conditions for rainfall and air temperature.Water balance outputs for different climatescenarios were combined with four agricultural scenarios allowing for the estimation of total irrigationrequirements.A general increase in crop irrigation requirements was estimated, mainly for those crops as maize, pasture,and orchards that are already big irrigation water consumers. Crops as olive groves and vineyards,well adapted to the Mediterranean conditions, show less sensitivity to climate change. The combinedresults of crop irrigation requirements for climate change and agricultural scenarios allow for the expectationof sustainability for the agricultural scenarios A and C, essentially defined by the complete use ofthe irrigation network and systems currently being. |
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Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal)Ciências da engenharia e tecnologiasEngineering and technologyThis study evaluates climate change potential impacts on irrigated agriculture in the Guadiana river basin,in the south of Portugal, by running long-term soil water balance simulations using the ISAREG modeland taking into consideration the maximum potential yield. The ISAREG simulations were focused in aset of the most locally representative crops to assess the evolution of net and total water requirements,considering a monthly time step for two 30-year future periods,(20112040) and (20412070). Referenceevapotranspiration was estimated using the temperature-based HargreavesSamani equation, and thesimulations were performed using, as inputs, a combination of five climate change scenarios built usingthe Ensemble-Delta technique fromCMIP3 climateprojectionsdatasets to setdifferent alternative climatechange bracketing conditions for rainfall and air temperature.Water balance outputs for different climatescenarios were combined with four agricultural scenarios allowing for the estimation of total irrigationrequirements.A general increase in crop irrigation requirements was estimated, mainly for those crops as maize, pasture,and orchards that are already big irrigation water consumers. Crops as olive groves and vineyards,well adapted to the Mediterranean conditions, show less sensitivity to climate change. The combinedresults of crop irrigation requirements for climate change and agricultural scenarios allow for the expectationof sustainability for the agricultural scenarios A and C, essentially defined by the complete use ofthe irrigation network and systems currently being.20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://repositorio-aberto.up.pt/handle/10216/82506eng0378-377410.1016/j.agwat.2014.12.012Pedro ValverdeRicardo SerralheiroMário de CarvalhoRodrigo MaiaBruno OliveiraVanessa Ramosinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T14:03:45Zoai:repositorio-aberto.up.pt:10216/82506Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:53:47.891265Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) |
title |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) |
spellingShingle |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) Pedro Valverde Ciências da engenharia e tecnologias Engineering and technology |
title_short |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) |
title_full |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) |
title_fullStr |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) |
title_full_unstemmed |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) |
title_sort |
Climate change impacts on irrigated agriculture in the Guadiana river basin (Portugal) |
author |
Pedro Valverde |
author_facet |
Pedro Valverde Ricardo Serralheiro Mário de Carvalho Rodrigo Maia Bruno Oliveira Vanessa Ramos |
author_role |
author |
author2 |
Ricardo Serralheiro Mário de Carvalho Rodrigo Maia Bruno Oliveira Vanessa Ramos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pedro Valverde Ricardo Serralheiro Mário de Carvalho Rodrigo Maia Bruno Oliveira Vanessa Ramos |
dc.subject.por.fl_str_mv |
Ciências da engenharia e tecnologias Engineering and technology |
topic |
Ciências da engenharia e tecnologias Engineering and technology |
description |
This study evaluates climate change potential impacts on irrigated agriculture in the Guadiana river basin,in the south of Portugal, by running long-term soil water balance simulations using the ISAREG modeland taking into consideration the maximum potential yield. The ISAREG simulations were focused in aset of the most locally representative crops to assess the evolution of net and total water requirements,considering a monthly time step for two 30-year future periods,(20112040) and (20412070). Referenceevapotranspiration was estimated using the temperature-based HargreavesSamani equation, and thesimulations were performed using, as inputs, a combination of five climate change scenarios built usingthe Ensemble-Delta technique fromCMIP3 climateprojectionsdatasets to setdifferent alternative climatechange bracketing conditions for rainfall and air temperature.Water balance outputs for different climatescenarios were combined with four agricultural scenarios allowing for the estimation of total irrigationrequirements.A general increase in crop irrigation requirements was estimated, mainly for those crops as maize, pasture,and orchards that are already big irrigation water consumers. Crops as olive groves and vineyards,well adapted to the Mediterranean conditions, show less sensitivity to climate change. The combinedresults of crop irrigation requirements for climate change and agricultural scenarios allow for the expectationof sustainability for the agricultural scenarios A and C, essentially defined by the complete use ofthe irrigation network and systems currently being. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://repositorio-aberto.up.pt/handle/10216/82506 |
url |
https://repositorio-aberto.up.pt/handle/10216/82506 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0378-3774 10.1016/j.agwat.2014.12.012 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799135858364776448 |