Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments

Detalhes bibliográficos
Autor(a) principal: Serpa, D.
Data de Publicação: 2015
Outros Autores: Nunes, J.P., Santos, J., Sampaio, E., Jacinto, R., Veiga, S., Lima, J.C., Moreira, M., Corte-Real, J., Keizer, J.J., Abrantes, N.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/16706
https://doi.org/10.1016/j.scitotenv.2015.08.033
Resumo: The impacts of climate and land use changes on streamflow and sediment export were evaluated for a humid (São Lourenço) and a dry (Guadalupe) Mediterranean catchment, using the SWAT model. SWAT was able to produce viable streamflow and sediment export simulations for both catchments, which provided a baseline for investigating climate and land use changes under the A1B and B1 emission scenarios for 2071–2100. Compared to the baseline scenario (1971–2000), climate change scenarios showed a decrease in annual rainfall for both catchments (humid: − 12%; dry: − 8%), together with strong increases in rainfall during winter. Land use changes were derived from a socio-economic storyline in which traditional agriculture is replaced by more profitable land uses (i.e. corn and commercial forestry at the humid site; sunflower at the dry site). Climate change projections showed a decrease in streamflow for both catchments, whereas sediment export decreased only for the São Lourenço catchment. Land use changes resulted in an increase in streamflow, but the erosive response differed between catchments. The combination of climate and land use change scenarios led to a reduction in streamflow for both catchments, suggesting a domain of the climatic response. As for sediments, contrasting results were observed for the humid (A1B: − 29%; B1: − 22%) and dry catchment (A1B: + 222%; B1: + 5%), which is mainly due to differences in the present-day and forecasted vegetation types. The results highlight the importance of climate-induced land-use change impacts, which could be similar to or more severe than the direct impacts of climate change alone.
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spelling Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchmentsHydrologyErosionMediterraneanClimate changeLand use changeThe impacts of climate and land use changes on streamflow and sediment export were evaluated for a humid (São Lourenço) and a dry (Guadalupe) Mediterranean catchment, using the SWAT model. SWAT was able to produce viable streamflow and sediment export simulations for both catchments, which provided a baseline for investigating climate and land use changes under the A1B and B1 emission scenarios for 2071–2100. Compared to the baseline scenario (1971–2000), climate change scenarios showed a decrease in annual rainfall for both catchments (humid: − 12%; dry: − 8%), together with strong increases in rainfall during winter. Land use changes were derived from a socio-economic storyline in which traditional agriculture is replaced by more profitable land uses (i.e. corn and commercial forestry at the humid site; sunflower at the dry site). Climate change projections showed a decrease in streamflow for both catchments, whereas sediment export decreased only for the São Lourenço catchment. Land use changes resulted in an increase in streamflow, but the erosive response differed between catchments. The combination of climate and land use change scenarios led to a reduction in streamflow for both catchments, suggesting a domain of the climatic response. As for sediments, contrasting results were observed for the humid (A1B: − 29%; B1: − 22%) and dry catchment (A1B: + 222%; B1: + 5%), which is mainly due to differences in the present-day and forecasted vegetation types. The results highlight the importance of climate-induced land-use change impacts, which could be similar to or more severe than the direct impacts of climate change alone.Elsevier2016-01-18T17:54:25Z2016-01-182015-12-15T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/16706http://hdl.handle.net/10174/16706https://doi.org/10.1016/j.scitotenv.2015.08.033porD. Serpa, J.P. Nunes, , , J. Santos, E. Sampaio, R. Jacinto, S. Veiga, J.C. Lima, M. Moreira, J. Corte-Real, J.J. Keizer, N. Abrantes, (2015), Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments, Science of The Total Environment, Volume 538: 64–77, doi:10.1016/j.scitotenv.2015.08.033,64-77http://www.sciencedirect.com/science/article/pii/S0048969715305386538dalila.serpa@ua.ptjpcn@ua.ptjuliana.santos@uni-jena.deems@uevora.ptjacinto.rita@gmail.comveigasandro@gmail.comjcl@uevora.ptmmvmv@uevora.ptjmcr@uevora.ptjjkeizer@ua.ptnjabrantes@ua.pt247Serpa, D.Nunes, J.P.Santos, J.Sampaio, E.Jacinto, R.Veiga, S.Lima, J.C.Moreira, M.Corte-Real, J.Keizer, J.J.Abrantes, N.info: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:RCAAP2024-01-03T19:03:49Zoai:dspace.uevora.pt:10174/16706Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:09:04.154360Repositório 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 Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
title Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
spellingShingle Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
Serpa, D.
Hydrology
Erosion
Mediterranean
Climate change
Land use change
title_short Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
title_full Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
title_fullStr Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
title_full_unstemmed Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
title_sort Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments
author Serpa, D.
author_facet Serpa, D.
Nunes, J.P.
Santos, J.
Sampaio, E.
Jacinto, R.
Veiga, S.
Lima, J.C.
Moreira, M.
Corte-Real, J.
Keizer, J.J.
Abrantes, N.
author_role author
author2 Nunes, J.P.
Santos, J.
Sampaio, E.
Jacinto, R.
Veiga, S.
Lima, J.C.
Moreira, M.
Corte-Real, J.
Keizer, J.J.
Abrantes, N.
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Serpa, D.
Nunes, J.P.
Santos, J.
Sampaio, E.
Jacinto, R.
Veiga, S.
Lima, J.C.
Moreira, M.
Corte-Real, J.
Keizer, J.J.
Abrantes, N.
dc.subject.por.fl_str_mv Hydrology
Erosion
Mediterranean
Climate change
Land use change
topic Hydrology
Erosion
Mediterranean
Climate change
Land use change
description The impacts of climate and land use changes on streamflow and sediment export were evaluated for a humid (São Lourenço) and a dry (Guadalupe) Mediterranean catchment, using the SWAT model. SWAT was able to produce viable streamflow and sediment export simulations for both catchments, which provided a baseline for investigating climate and land use changes under the A1B and B1 emission scenarios for 2071–2100. Compared to the baseline scenario (1971–2000), climate change scenarios showed a decrease in annual rainfall for both catchments (humid: − 12%; dry: − 8%), together with strong increases in rainfall during winter. Land use changes were derived from a socio-economic storyline in which traditional agriculture is replaced by more profitable land uses (i.e. corn and commercial forestry at the humid site; sunflower at the dry site). Climate change projections showed a decrease in streamflow for both catchments, whereas sediment export decreased only for the São Lourenço catchment. Land use changes resulted in an increase in streamflow, but the erosive response differed between catchments. The combination of climate and land use change scenarios led to a reduction in streamflow for both catchments, suggesting a domain of the climatic response. As for sediments, contrasting results were observed for the humid (A1B: − 29%; B1: − 22%) and dry catchment (A1B: + 222%; B1: + 5%), which is mainly due to differences in the present-day and forecasted vegetation types. The results highlight the importance of climate-induced land-use change impacts, which could be similar to or more severe than the direct impacts of climate change alone.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-15T00:00:00Z
2016-01-18T17:54:25Z
2016-01-18
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 http://hdl.handle.net/10174/16706
http://hdl.handle.net/10174/16706
https://doi.org/10.1016/j.scitotenv.2015.08.033
url http://hdl.handle.net/10174/16706
https://doi.org/10.1016/j.scitotenv.2015.08.033
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv D. Serpa, J.P. Nunes, , , J. Santos, E. Sampaio, R. Jacinto, S. Veiga, J.C. Lima, M. Moreira, J. Corte-Real, J.J. Keizer, N. Abrantes, (2015), Impacts of climate and land use changes on the hydrological and erosion processes of two contrasting Mediterranean catchments, Science of The Total Environment, Volume 538: 64–77, doi:10.1016/j.scitotenv.2015.08.033,
64-77
http://www.sciencedirect.com/science/article/pii/S0048969715305386
538
dalila.serpa@ua.pt
jpcn@ua.pt
juliana.santos@uni-jena.de
ems@uevora.pt
jacinto.rita@gmail.com
veigasandro@gmail.com
jcl@uevora.pt
mmvmv@uevora.pt
jmcr@uevora.pt
jjkeizer@ua.pt
njabrantes@ua.pt
247
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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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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