Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/29873 https://doi.org/10.3390/w13050707 |
Resumo: | Nowadays, the Mediterranean freshwater systems face the threat of water scarcity, along with multiple other stressors (e.g., organic and inorganic contamination, geomorphological alterations, invasive species), leading to the impairment of their ecosystem services. All these stressors have been speeding up, due to climate variability and land cover/land use changes, turning them into a big challenge for the water management plans. The present study analyses the physicochemical and phytoplankton biomass (chlorophyll-a) dynamics of a large reservoir, in the Mediterranean region (Alqueva reservoir, Southern Portugal), under diverse meteorological conditions and land cover/land use real scenarios (2017 and 2018). The most important stressors were identified and the necessary tools and information for a more effective management plan were provided. Changes in these parameters were further related to the observed variations in the meteorological conditions and in the land cover/land use. The increase in nutrients and ions in the water column, and of potentially toxic metals in the sediment, were more obvious in periods of severe drought. Further, the enhancement of nutrients concentrations, potentially caused by the intensification of agricultural activities, may indicate an increased risk of water eutrophication. The results highlight that a holistic approach is essential for a better water resources management strategy. |
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7160 |
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Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressorsAlqueva reservoirclimate variabilityLand cover/land useswater-sediment dynamicsNowadays, the Mediterranean freshwater systems face the threat of water scarcity, along with multiple other stressors (e.g., organic and inorganic contamination, geomorphological alterations, invasive species), leading to the impairment of their ecosystem services. All these stressors have been speeding up, due to climate variability and land cover/land use changes, turning them into a big challenge for the water management plans. The present study analyses the physicochemical and phytoplankton biomass (chlorophyll-a) dynamics of a large reservoir, in the Mediterranean region (Alqueva reservoir, Southern Portugal), under diverse meteorological conditions and land cover/land use real scenarios (2017 and 2018). The most important stressors were identified and the necessary tools and information for a more effective management plan were provided. Changes in these parameters were further related to the observed variations in the meteorological conditions and in the land cover/land use. The increase in nutrients and ions in the water column, and of potentially toxic metals in the sediment, were more obvious in periods of severe drought. Further, the enhancement of nutrients concentrations, potentially caused by the intensification of agricultural activities, may indicate an increased risk of water eutrophication. The results highlight that a holistic approach is essential for a better water resources management strategy.Water2021-06-08T10:45:59Z2021-06-082020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/29873http://hdl.handle.net/10174/29873https://doi.org/10.3390/w13050707engPalma P., Penha A., Novais M.H., Fialho S., Lima A., Moutinho C., Alvarenga P., Rosado A., Iakunin M., Rodrigues G., Potes M., Costa M. J., Morais, M., Salgado R., 2021 - Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors. Water 2021, 13 (5), 70713ppalma@ipbeja.pthnovais@uevora.ptndndndndarosado@uevora.ptndgrodrigues@uevora.ptmjcosta@uevora.ptmmorais@uevora.ptrsal@uevora.pt221Palma, PatríciaNovais, Maria HelenaFialho, SLima, A.Moutinho, CAlvarenga, PaulaRosado, AnabelaIakunin, MRodrigues, GonçaloCosta, Maria JoãoMorais, ManuelaSalgado, Ruiinfo: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:RCAAP2024-01-03T19:27:09Zoai:dspace.uevora.pt:10174/29873Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:19:22.013511Repositório 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 |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors |
title |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors |
spellingShingle |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors Palma, Patrícia Alqueva reservoir climate variability Land cover/land uses water-sediment dynamics |
title_short |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors |
title_full |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors |
title_fullStr |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors |
title_full_unstemmed |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors |
title_sort |
Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors |
author |
Palma, Patrícia |
author_facet |
Palma, Patrícia Novais, Maria Helena Fialho, S Lima, A. Moutinho, C Alvarenga, Paula Rosado, Anabela Iakunin, M Rodrigues, Gonçalo Costa, Maria João Morais, Manuela Salgado, Rui |
author_role |
author |
author2 |
Novais, Maria Helena Fialho, S Lima, A. Moutinho, C Alvarenga, Paula Rosado, Anabela Iakunin, M Rodrigues, Gonçalo Costa, Maria João Morais, Manuela Salgado, Rui |
author2_role |
author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Palma, Patrícia Novais, Maria Helena Fialho, S Lima, A. Moutinho, C Alvarenga, Paula Rosado, Anabela Iakunin, M Rodrigues, Gonçalo Costa, Maria João Morais, Manuela Salgado, Rui |
dc.subject.por.fl_str_mv |
Alqueva reservoir climate variability Land cover/land uses water-sediment dynamics |
topic |
Alqueva reservoir climate variability Land cover/land uses water-sediment dynamics |
description |
Nowadays, the Mediterranean freshwater systems face the threat of water scarcity, along with multiple other stressors (e.g., organic and inorganic contamination, geomorphological alterations, invasive species), leading to the impairment of their ecosystem services. All these stressors have been speeding up, due to climate variability and land cover/land use changes, turning them into a big challenge for the water management plans. The present study analyses the physicochemical and phytoplankton biomass (chlorophyll-a) dynamics of a large reservoir, in the Mediterranean region (Alqueva reservoir, Southern Portugal), under diverse meteorological conditions and land cover/land use real scenarios (2017 and 2018). The most important stressors were identified and the necessary tools and information for a more effective management plan were provided. Changes in these parameters were further related to the observed variations in the meteorological conditions and in the land cover/land use. The increase in nutrients and ions in the water column, and of potentially toxic metals in the sediment, were more obvious in periods of severe drought. Further, the enhancement of nutrients concentrations, potentially caused by the intensification of agricultural activities, may indicate an increased risk of water eutrophication. The results highlight that a holistic approach is essential for a better water resources management strategy. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01T00:00:00Z 2021-06-08T10:45:59Z 2021-06-08 |
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/10174/29873 http://hdl.handle.net/10174/29873 https://doi.org/10.3390/w13050707 |
url |
http://hdl.handle.net/10174/29873 https://doi.org/10.3390/w13050707 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Palma P., Penha A., Novais M.H., Fialho S., Lima A., Moutinho C., Alvarenga P., Rosado A., Iakunin M., Rodrigues G., Potes M., Costa M. J., Morais, M., Salgado R., 2021 - Water-sediment physicochemical dynamics in a large reservoir in the Mediterranean region under multiple stressors. Water 2021, 13 (5), 707 13 ppalma@ipbeja.pt hnovais@uevora.pt nd nd nd nd arosado@uevora.pt nd grodrigues@uevora.pt mjcosta@uevora.pt mmorais@uevora.pt rsal@uevora.pt 221 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Water |
publisher.none.fl_str_mv |
Water |
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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1799136674814361600 |