How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2022000300801 |
Resumo: | Abstract The case study is located in an agricultural area of alluvial origin, approximately 10 km northeast of Lisbon (Portugal). The area is a peninsula surrounded by River Tejo, its estuary, and by River Sorraia. The peninsula lies 1 to 2 m above sea level, with saline groundwater arising from the estuarine tides. The soil is typically clayey and homogeneous. The future climate projections for the Mediterranean region show a decrease in precipitation, increase in mean temperature, and increase in sea water level. These conditions aggravate the processes leading to salt-affected soils (increased evapotranspiration, decrease in salt leaching during the rainy season, and increase of the groundwater salinity). This work evaluates the influence of climate change on soil salinity and water content in a rainfed spontaneous pasture, using Hydrus-1D. Three climate scenarios, comprising series of 30 years obtained with a regional climate model, were used: reference scenario (referent to 1971-2000), RCP4.5, and RCP 8.5 (both for 2011-2040). The results show an increase in the soil salinity in the RCP scenarios compared to the reference and a decrease in the mean yearly water content of the topsoil. Both effects limit the productivity of the pasture and even compromise the plants’ growth. |
id |
RCAP_5a7cccccc6db1288e0aa61dea7a17bfd |
---|---|
oai_identifier_str |
oai:scielo:S0871-018X2022000300801 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
|
spelling |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwatersoil salinitysoil watersoil modellingclimate change.Abstract The case study is located in an agricultural area of alluvial origin, approximately 10 km northeast of Lisbon (Portugal). The area is a peninsula surrounded by River Tejo, its estuary, and by River Sorraia. The peninsula lies 1 to 2 m above sea level, with saline groundwater arising from the estuarine tides. The soil is typically clayey and homogeneous. The future climate projections for the Mediterranean region show a decrease in precipitation, increase in mean temperature, and increase in sea water level. These conditions aggravate the processes leading to salt-affected soils (increased evapotranspiration, decrease in salt leaching during the rainy season, and increase of the groundwater salinity). This work evaluates the influence of climate change on soil salinity and water content in a rainfed spontaneous pasture, using Hydrus-1D. Three climate scenarios, comprising series of 30 years obtained with a regional climate model, were used: reference scenario (referent to 1971-2000), RCP4.5, and RCP 8.5 (both for 2011-2040). The results show an increase in the soil salinity in the RCP scenarios compared to the reference and a decrease in the mean yearly water content of the topsoil. Both effects limit the productivity of the pasture and even compromise the plants’ growth.Sociedade de Ciências Agrárias de Portugal2022-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2022000300801Revista de Ciências Agrárias v.45 n.4 2022reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2022000300801Paz,A.Castanheira,N.Soares,P. MatosFarzamian,M.Paz,M.C.Gonçalves,M.C.info:eu-repo/semantics/openAccess2023-07-27T12:21:33ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater |
title |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater |
spellingShingle |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater Paz,A. soil salinity soil water soil modelling climate change. |
title_short |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater |
title_full |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater |
title_fullStr |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater |
title_full_unstemmed |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater |
title_sort |
How does climate change affect soil salinity? The case study of a Mediterranean pasture with saline groundwater |
author |
Paz,A. |
author_facet |
Paz,A. Castanheira,N. Soares,P. Matos Farzamian,M. Paz,M.C. Gonçalves,M.C. |
author_role |
author |
author2 |
Castanheira,N. Soares,P. Matos Farzamian,M. Paz,M.C. Gonçalves,M.C. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Paz,A. Castanheira,N. Soares,P. Matos Farzamian,M. Paz,M.C. Gonçalves,M.C. |
dc.subject.por.fl_str_mv |
soil salinity soil water soil modelling climate change. |
topic |
soil salinity soil water soil modelling climate change. |
description |
Abstract The case study is located in an agricultural area of alluvial origin, approximately 10 km northeast of Lisbon (Portugal). The area is a peninsula surrounded by River Tejo, its estuary, and by River Sorraia. The peninsula lies 1 to 2 m above sea level, with saline groundwater arising from the estuarine tides. The soil is typically clayey and homogeneous. The future climate projections for the Mediterranean region show a decrease in precipitation, increase in mean temperature, and increase in sea water level. These conditions aggravate the processes leading to salt-affected soils (increased evapotranspiration, decrease in salt leaching during the rainy season, and increase of the groundwater salinity). This work evaluates the influence of climate change on soil salinity and water content in a rainfed spontaneous pasture, using Hydrus-1D. Three climate scenarios, comprising series of 30 years obtained with a regional climate model, were used: reference scenario (referent to 1971-2000), RCP4.5, and RCP 8.5 (both for 2011-2040). The results show an increase in the soil salinity in the RCP scenarios compared to the reference and a decrease in the mean yearly water content of the topsoil. Both effects limit the productivity of the pasture and even compromise the plants’ growth. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-01 |
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2022000300801 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2022000300801 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0871-018X2022000300801 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade de Ciências Agrárias de Portugal |
publisher.none.fl_str_mv |
Sociedade de Ciências Agrárias de Portugal |
dc.source.none.fl_str_mv |
Revista de Ciências Agrárias v.45 n.4 2022 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 |
|
repository.mail.fl_str_mv |
|
_version_ |
1777304395495505920 |