Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)

Detalhes bibliográficos
Autor(a) principal: Afonso, Maria José
Data de Publicação: 2020
Outros Autores: Freitas, Liliana, Marques, José Manuel, Carreira, Paula M., Pereira, Alcides J.S.C., Rocha, Fernando, Chaminé, Helder I.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.22/18639
Resumo: Groundwater in fissured rocks is one of the most important reserves of available fresh water, and urbanization applies an extremely complex pressure which puts this natural resource at risk. Two-thirds of Portugal is composed of fissured aquifers. In this context, the Porto urban region is the second biggest metropolitan area in mainland Portugal. In this study, a multidisciplinary approach was developed, using hydrogeological GIS-based mapping and modeling, combining hydrogeochemical, isotopic, and hydrodynamical data. In addition, an urban infiltration potential index (IPI-Urban) was outlined with the combination of several thematic layers. Hydrogeochemical signatures are mainly Cl-Na to Cl-SO4-Na, being dependent on the geographic proximity of this region to the ocean, and on anthropogenic and agricultural contamination processes, namely fertilizers, sewage, as well as animal and human wastes. Isotopic signatures characterize a meteoric origin for groundwater, with shallow flow paths and short residence times. Pumping tests revealed a semi- to confined system, with low long-term well capacities (<1 L/s), low transmissivities (<4 m2/day), and low storage coefficients (<10−2). The IPI-Urban index showed a low groundwater infiltration potential, which was enhanced by urban hydraulic and sanitation features. This study assessed the major hydrogeological processes and their dynamics, therefore, contributing to a better knowledge of sustainable urban groundwater systems in fractured media
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spelling Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)Urban groundwaterHydrogeochemistryHydrodynamicsIPI-UrbanNW PortugalGroundwater in fissured rocks is one of the most important reserves of available fresh water, and urbanization applies an extremely complex pressure which puts this natural resource at risk. Two-thirds of Portugal is composed of fissured aquifers. In this context, the Porto urban region is the second biggest metropolitan area in mainland Portugal. In this study, a multidisciplinary approach was developed, using hydrogeological GIS-based mapping and modeling, combining hydrogeochemical, isotopic, and hydrodynamical data. In addition, an urban infiltration potential index (IPI-Urban) was outlined with the combination of several thematic layers. Hydrogeochemical signatures are mainly Cl-Na to Cl-SO4-Na, being dependent on the geographic proximity of this region to the ocean, and on anthropogenic and agricultural contamination processes, namely fertilizers, sewage, as well as animal and human wastes. Isotopic signatures characterize a meteoric origin for groundwater, with shallow flow paths and short residence times. Pumping tests revealed a semi- to confined system, with low long-term well capacities (<1 L/s), low transmissivities (<4 m2/day), and low storage coefficients (<10−2). The IPI-Urban index showed a low groundwater infiltration potential, which was enhanced by urban hydraulic and sanitation features. This study assessed the major hydrogeological processes and their dynamics, therefore, contributing to a better knowledge of sustainable urban groundwater systems in fractured mediaThis work was partially financed by FEDER-EU COMPETE Funds and the Portuguese Foundation for the Science and Technology, FCT (UID/GEO/04035/2020, UID/Multi/00611/2020, and GroundUrban project POCI/CTE-GEX/59081/2004), and by the Labcarga|ISEP re-equipment program (IPP-ISEP|PAD’2007/08). The research was also funded by a doctoral scholarship from the Portuguese Foundation for Science and Technology (FCT) to L. Freitas (SFRH/BD/117927/2016). P.M. Carreira acknowledges the FCT support through the FCT-UIDB/04349/2020 project and J.M. Marques recognizes the FCT support through the UID/ECI/04028/2020 project.MDPIRepositório Científico do Instituto Politécnico do PortoAfonso, Maria JoséFreitas, LilianaMarques, José ManuelCarreira, Paula M.Pereira, Alcides J.S.C.Rocha, FernandoChaminé, Helder I.2021-10-01T10:12:55Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/18639eng10.3390/w12102797info: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:RCAAP2023-03-13T13:10:45Zoai:recipp.ipp.pt:10400.22/18639Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:38:11.372129Repositório 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 Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
title Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
spellingShingle Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
Afonso, Maria José
Urban groundwater
Hydrogeochemistry
Hydrodynamics
IPI-Urban
NW Portugal
title_short Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
title_full Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
title_fullStr Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
title_full_unstemmed Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
title_sort Urban Groundwater Processes and Anthropogenic Interactions (Porto Region, NW Portugal)
author Afonso, Maria José
author_facet Afonso, Maria José
Freitas, Liliana
Marques, José Manuel
Carreira, Paula M.
Pereira, Alcides J.S.C.
Rocha, Fernando
Chaminé, Helder I.
author_role author
author2 Freitas, Liliana
Marques, José Manuel
Carreira, Paula M.
Pereira, Alcides J.S.C.
Rocha, Fernando
Chaminé, Helder I.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório Científico do Instituto Politécnico do Porto
dc.contributor.author.fl_str_mv Afonso, Maria José
Freitas, Liliana
Marques, José Manuel
Carreira, Paula M.
Pereira, Alcides J.S.C.
Rocha, Fernando
Chaminé, Helder I.
dc.subject.por.fl_str_mv Urban groundwater
Hydrogeochemistry
Hydrodynamics
IPI-Urban
NW Portugal
topic Urban groundwater
Hydrogeochemistry
Hydrodynamics
IPI-Urban
NW Portugal
description Groundwater in fissured rocks is one of the most important reserves of available fresh water, and urbanization applies an extremely complex pressure which puts this natural resource at risk. Two-thirds of Portugal is composed of fissured aquifers. In this context, the Porto urban region is the second biggest metropolitan area in mainland Portugal. In this study, a multidisciplinary approach was developed, using hydrogeological GIS-based mapping and modeling, combining hydrogeochemical, isotopic, and hydrodynamical data. In addition, an urban infiltration potential index (IPI-Urban) was outlined with the combination of several thematic layers. Hydrogeochemical signatures are mainly Cl-Na to Cl-SO4-Na, being dependent on the geographic proximity of this region to the ocean, and on anthropogenic and agricultural contamination processes, namely fertilizers, sewage, as well as animal and human wastes. Isotopic signatures characterize a meteoric origin for groundwater, with shallow flow paths and short residence times. Pumping tests revealed a semi- to confined system, with low long-term well capacities (<1 L/s), low transmissivities (<4 m2/day), and low storage coefficients (<10−2). The IPI-Urban index showed a low groundwater infiltration potential, which was enhanced by urban hydraulic and sanitation features. This study assessed the major hydrogeological processes and their dynamics, therefore, contributing to a better knowledge of sustainable urban groundwater systems in fractured media
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-01-01T00:00:00Z
2021-10-01T10:12:55Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.22/18639
url http://hdl.handle.net/10400.22/18639
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.3390/w12102797
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instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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