Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago

Detalhes bibliográficos
Autor(a) principal: Fonseca, Rita
Data de Publicação: 2014
Outros Autores: Hernandez, Regla, Pinto, Paula, Araújo, António, Pinho, Catarina
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10174/17450
Resumo: Poilão dam reservoir (Cape Verde Archipelago) is in critical conditions, owing the excessive silting up, the high concentration of nitrates and the pronounced anoxia all over the lake. Considering that the most suitable remediation strategy is the removal of the bottom sediments where nutrients are preferentially concentrated, we have done a geochemical study, in order of evaluating their suitability to agricultural use. Analyses indicate that sediments are rich in a few key nutrients, when compared with parent soils. Thus, adding suitable sediments to nearby degraded soils can improve food crops for smallholder farmers living in close proximity to this system.
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spelling Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde ArchipelagoEstudo geoquímico para reabilitação de uma albufeira pouco profunda e anóxica, em terrenos vulcânicos e clima semi-árido, no Arquipélago de Cabo VerdeAnóxiaAssoreamentoDesertificaçãoSedimentos de barragemUso agrícolaPoilão dam reservoir (Cape Verde Archipelago) is in critical conditions, owing the excessive silting up, the high concentration of nitrates and the pronounced anoxia all over the lake. Considering that the most suitable remediation strategy is the removal of the bottom sediments where nutrients are preferentially concentrated, we have done a geochemical study, in order of evaluating their suitability to agricultural use. Analyses indicate that sediments are rich in a few key nutrients, when compared with parent soils. Thus, adding suitable sediments to nearby degraded soils can improve food crops for smallholder farmers living in close proximity to this system.Comunicações Geológicas2016-02-22T10:57:51Z2016-02-222014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/17450http://hdl.handle.net/10174/17450porFonseca, R.; Hernandez, R.; Pinto, A. P.; Araújo, A. e Pinho, C. (2014). Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago, Comunicações Geológicas, 101, Especial II, pp. 997-1000http://www.lneg.pt/download/9697/83_3073_ART_CG14_ESPECIAL_II.pdfrfonseca@uevora.ptndapp@uevora.ptaaraujo@uevora.ptnd250ISSN: 0873-948X; e-ISSN: 1647-581XFonseca, RitaHernandez, ReglaPinto, PaulaAraújo, AntónioPinho, Catarinainfo: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:RCAAP2023-08-08T04:18:19ZPortal AgregadorONG
dc.title.none.fl_str_mv Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
Estudo geoquímico para reabilitação de uma albufeira pouco profunda e anóxica, em terrenos vulcânicos e clima semi-árido, no Arquipélago de Cabo Verde
title Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
spellingShingle Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
Fonseca, Rita
Anóxia
Assoreamento
Desertificação
Sedimentos de barragem
Uso agrícola
title_short Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
title_full Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
title_fullStr Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
title_full_unstemmed Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
title_sort Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago
author Fonseca, Rita
author_facet Fonseca, Rita
Hernandez, Regla
Pinto, Paula
Araújo, António
Pinho, Catarina
author_role author
author2 Hernandez, Regla
Pinto, Paula
Araújo, António
Pinho, Catarina
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Fonseca, Rita
Hernandez, Regla
Pinto, Paula
Araújo, António
Pinho, Catarina
dc.subject.por.fl_str_mv Anóxia
Assoreamento
Desertificação
Sedimentos de barragem
Uso agrícola
topic Anóxia
Assoreamento
Desertificação
Sedimentos de barragem
Uso agrícola
description Poilão dam reservoir (Cape Verde Archipelago) is in critical conditions, owing the excessive silting up, the high concentration of nitrates and the pronounced anoxia all over the lake. Considering that the most suitable remediation strategy is the removal of the bottom sediments where nutrients are preferentially concentrated, we have done a geochemical study, in order of evaluating their suitability to agricultural use. Analyses indicate that sediments are rich in a few key nutrients, when compared with parent soils. Thus, adding suitable sediments to nearby degraded soils can improve food crops for smallholder farmers living in close proximity to this system.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-01T00:00:00Z
2016-02-22T10:57:51Z
2016-02-22
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/10174/17450
http://hdl.handle.net/10174/17450
url http://hdl.handle.net/10174/17450
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Fonseca, R.; Hernandez, R.; Pinto, A. P.; Araújo, A. e Pinho, C. (2014). Geochemical study of the rehabilitation of a shallow anoxic reservoir, in volcanic terrains, under semi-arid climate, in Cape Verde Archipelago, Comunicações Geológicas, 101, Especial II, pp. 997-1000
http://www.lneg.pt/download/9697/83_3073_ART_CG14_ESPECIAL_II.pdf
rfonseca@uevora.pt
nd
app@uevora.pt
aaraujo@uevora.pt
nd
250
ISSN: 0873-948X; e-ISSN: 1647-581X
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Comunicações Geológicas
publisher.none.fl_str_mv Comunicações Geológicas
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
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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
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