PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/23016 |
Resumo: | Southern Portugal is a semi-arid region, characterized by an irregular spatio-temporal distribution of the precipitation that directly influences the superficial runoff. This variability, together with the occurrence of more or less extended periods of drought, often leads to situations of water stress, negatively affecting freshwater ecosystems. Human activities, particularly those associated with land use, have further aggravated this situation. Medium- small temporary streams are especially affected, as these systems are reduced to isolated pools during dry periods, where the aquatic biota persists until the following wet season. Moreover, the effect of dryness can be seriously amplified in the future, considering the foreseen climate change scenarios. Therefore, the main goal of this study was to define regions of hydroclimatic intermittence in southern Portugal based on the pattern of precipitation intermittency. Long time series of precipitation data were collected from 9 meteorological stations covering the south of Portugal region. Data analysis involved the selection of metrics and the development of intermittence indices, based on the precipitation patterns for control and future periods. Regions of hydroclimatic intermittence were displayed in a GIS environment, allowing the evaluation/classification of the persistence level of southern Portuguese streams and rivers for present and future periods. The relationships between the persistence level of streams and the long term viability of freshwater biota are discussed. The definition of regions of hydroclimatic intermittence can be a useful tool for water management in Mediterranean intermittent rivers. |
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PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERSPrecipitationIntermittencyPortugalMediterranean riversSouthern Portugal is a semi-arid region, characterized by an irregular spatio-temporal distribution of the precipitation that directly influences the superficial runoff. This variability, together with the occurrence of more or less extended periods of drought, often leads to situations of water stress, negatively affecting freshwater ecosystems. Human activities, particularly those associated with land use, have further aggravated this situation. Medium- small temporary streams are especially affected, as these systems are reduced to isolated pools during dry periods, where the aquatic biota persists until the following wet season. Moreover, the effect of dryness can be seriously amplified in the future, considering the foreseen climate change scenarios. Therefore, the main goal of this study was to define regions of hydroclimatic intermittence in southern Portugal based on the pattern of precipitation intermittency. Long time series of precipitation data were collected from 9 meteorological stations covering the south of Portugal region. Data analysis involved the selection of metrics and the development of intermittence indices, based on the precipitation patterns for control and future periods. Regions of hydroclimatic intermittence were displayed in a GIS environment, allowing the evaluation/classification of the persistence level of southern Portuguese streams and rivers for present and future periods. The relationships between the persistence level of streams and the long term viability of freshwater biota are discussed. The definition of regions of hydroclimatic intermittence can be a useful tool for water management in Mediterranean intermittent rivers.10th Symposium for European Freshwater Sciences2018-03-19T10:35:03Z2018-03-192017-01-09T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/23016http://hdl.handle.net/10174/23016porMatono P, Ilhéu M, Bugalho L, Batista T, Corte-Real J. 2017. Patterns of precipitation intermittency in southern Portugal: implication for the conservation and management of Mediterranean intermittent rivers. Poster Presentation. Proceedings of the 10th Symposium for European Freshwater Sciences, 2-7 July, Olomuc, Czech Republic. p470DPAOPaula Mapmatono@uevora.ptmilheu@uevora.ptndmtfb@uevora.ptnd253Matono, PaulaIlhéu, MariaBugalho, L.Batista, TeresaCorte-Real, Joãoinfo: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:RCAAP2024-01-03T19:14:30Zoai:dspace.uevora.pt:10174/23016Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:13:48.609264Repositório 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 |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS |
title |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS |
spellingShingle |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS Matono, Paula Precipitation Intermittency Portugal Mediterranean rivers |
title_short |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS |
title_full |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS |
title_fullStr |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS |
title_full_unstemmed |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS |
title_sort |
PATTERNS OF PRECIPITATION INTERMITTENCY IN SOUTHERN PORTUGAL: IMPLICATION FOR THE CONSERVATION AND MANAGEMENT OF MEDITERRANEAN INTERMITTENT RIVERS |
author |
Matono, Paula |
author_facet |
Matono, Paula Ilhéu, Maria Bugalho, L. Batista, Teresa Corte-Real, João |
author_role |
author |
author2 |
Ilhéu, Maria Bugalho, L. Batista, Teresa Corte-Real, João |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Matono, Paula Ilhéu, Maria Bugalho, L. Batista, Teresa Corte-Real, João |
dc.subject.por.fl_str_mv |
Precipitation Intermittency Portugal Mediterranean rivers |
topic |
Precipitation Intermittency Portugal Mediterranean rivers |
description |
Southern Portugal is a semi-arid region, characterized by an irregular spatio-temporal distribution of the precipitation that directly influences the superficial runoff. This variability, together with the occurrence of more or less extended periods of drought, often leads to situations of water stress, negatively affecting freshwater ecosystems. Human activities, particularly those associated with land use, have further aggravated this situation. Medium- small temporary streams are especially affected, as these systems are reduced to isolated pools during dry periods, where the aquatic biota persists until the following wet season. Moreover, the effect of dryness can be seriously amplified in the future, considering the foreseen climate change scenarios. Therefore, the main goal of this study was to define regions of hydroclimatic intermittence in southern Portugal based on the pattern of precipitation intermittency. Long time series of precipitation data were collected from 9 meteorological stations covering the south of Portugal region. Data analysis involved the selection of metrics and the development of intermittence indices, based on the precipitation patterns for control and future periods. Regions of hydroclimatic intermittence were displayed in a GIS environment, allowing the evaluation/classification of the persistence level of southern Portuguese streams and rivers for present and future periods. The relationships between the persistence level of streams and the long term viability of freshwater biota are discussed. The definition of regions of hydroclimatic intermittence can be a useful tool for water management in Mediterranean intermittent rivers. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-09T00:00:00Z 2018-03-19T10:35:03Z 2018-03-19 |
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/10174/23016 http://hdl.handle.net/10174/23016 |
url |
http://hdl.handle.net/10174/23016 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Matono P, Ilhéu M, Bugalho L, Batista T, Corte-Real J. 2017. Patterns of precipitation intermittency in southern Portugal: implication for the conservation and management of Mediterranean intermittent rivers. Poster Presentation. Proceedings of the 10th Symposium for European Freshwater Sciences, 2-7 July, Olomuc, Czech Republic. p470 DPAO Paula Mapmatono@uevora.pt milheu@uevora.pt nd mtfb@uevora.pt nd 253 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
10th Symposium for European Freshwater Sciences |
publisher.none.fl_str_mv |
10th Symposium for European Freshwater Sciences |
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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1799136620183552000 |