Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh

Salt marshes are important ecosystems for carbon sequestration. However, while studies of atmospheric carbon exchange fluxes have broadly been performed in tidal salt marshes, they are scarce in non-tidal salt marshes. In this study we measured, throughout 1 year, instantaneous net carbon dioxide (C...

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Autores: Carrasco Barea, Lorena, Verdaguer Murlà, Dolors, Gispert i Negrell, Maria Assumpta, Quintana Pou, Xavier, Bourhis, Hélène
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2025
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositório:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10256/28100
Acesso em linha:http://hdl.handle.net/10256/28100
Access Level:Acceso aberto
Palavra-chave:Aiguamolls -- Catalunya -- Baix Empordà
Marshes -- Catalonia -- Baix Empordà
Cicle del carboni -- Catalunya -- Baix Empordà
Carbon cycle (Biogeochemistry) -- Catalonia -- Baix Empordà
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spelling Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marshCarrasco Barea, LorenaVerdaguer Murlà, DolorsGispert i Negrell, Maria AssumptaQuintana Pou, XavierBourhis, HélèneAiguamolls -- Catalunya -- Baix EmpordàMarshes -- Catalonia -- Baix EmpordàCicle del carboni -- Catalunya -- Baix EmpordàCarbon cycle (Biogeochemistry) -- Catalonia -- Baix EmpordàSalt marshes are important ecosystems for carbon sequestration. However, while studies of atmospheric carbon exchange fluxes have broadly been performed in tidal salt marshes, they are scarce in non-tidal salt marshes. In this study we measured, throughout 1 year, instantaneous net carbon dioxide (CO2) exchange rates from four halophytes which are dominant species of their corresponding habitat (Sarcocornia fruticosa in a halophilous scrub, Halimione portulacoides and Elytrigia atherica in a salt meadow, and Salicornia patula in a glasswort sward) of a Mediterranean non-tidal salt marsh. Soil CO2 and methane (CH4) fluxes from these habitats were also measured. E. atherica, a perennial herbaceous species, showed the highest photosynthetic rates during the entire year, but S. patula, an annual succulent herb, also had remarkable photosynthetic rates in summer. Interestingly, the woody fraction of the two perennial shrubs, S. fruticosa and H. portulacoides, showed CO2 uptake during most of the daily measurements. Regarding the studied habitats, the halophilous scrub and the salt meadow showed higher soil CO2 emissions than the glasswort sward, and the overall emissions were higher than those reported for tidal salt marshes. Both soil absorption and emission of CH4 were detected. In particular, CH4 emissions were remarkably high, similar to those found in low-salinity marshes and, in general, higher than those reported for salt marshes with a high water table salinity. Soil mineralization quotients of the halophilous scrub and the salt meadow were lower than those measured at the glasswort sward, suggesting a higher soil carbon sequestration potential of the first two habitatsThis research has been supported by the Life+ Program of the European Commission (Life Pletera; grant no. LIFE13NAT/ES/001001). Lorena Carrasco-Barea held a PhD grant (grant no. IFUdG2015) from the University of Girona13Copernicus Publications2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionpeer-reviewedapplication/pdfhttp://hdl.handle.net/10256/28100Biogeosciences, 2025, vol. 22, núm. 1, p. 289-304Articles publicats (D-EQATA)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/semantics/altIdentifier/doi/10.5194/bg-22-289-2025info:eu-repo/semantics/altIdentifier/issn/1726-4170info:eu-repo/semantics/altIdentifier/eissn/1726-4189Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:10256/281002026-05-29T05:05:01Z
dc.title.none.fl_str_mv Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
title Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
spellingShingle Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
Carrasco Barea, Lorena
Aiguamolls -- Catalunya -- Baix Empordà
Marshes -- Catalonia -- Baix Empordà
Cicle del carboni -- Catalunya -- Baix Empordà
Carbon cycle (Biogeochemistry) -- Catalonia -- Baix Empordà
title_short Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
title_full Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
title_fullStr Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
title_full_unstemmed Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
title_sort Seasonal carbon fluxes from vegetation and soil in a Mediterranean non-tidal salt marsh
dc.creator.none.fl_str_mv Carrasco Barea, Lorena
Verdaguer Murlà, Dolors
Gispert i Negrell, Maria Assumpta
Quintana Pou, Xavier
Bourhis, Hélène
author Carrasco Barea, Lorena
author_facet Carrasco Barea, Lorena
Verdaguer Murlà, Dolors
Gispert i Negrell, Maria Assumpta
Quintana Pou, Xavier
Bourhis, Hélène
author_role author
author2 Verdaguer Murlà, Dolors
Gispert i Negrell, Maria Assumpta
Quintana Pou, Xavier
Bourhis, Hélène
author2_role author
author
author
author
dc.subject.none.fl_str_mv Aiguamolls -- Catalunya -- Baix Empordà
Marshes -- Catalonia -- Baix Empordà
Cicle del carboni -- Catalunya -- Baix Empordà
Carbon cycle (Biogeochemistry) -- Catalonia -- Baix Empordà
topic Aiguamolls -- Catalunya -- Baix Empordà
Marshes -- Catalonia -- Baix Empordà
Cicle del carboni -- Catalunya -- Baix Empordà
Carbon cycle (Biogeochemistry) -- Catalonia -- Baix Empordà
description Salt marshes are important ecosystems for carbon sequestration. However, while studies of atmospheric carbon exchange fluxes have broadly been performed in tidal salt marshes, they are scarce in non-tidal salt marshes. In this study we measured, throughout 1 year, instantaneous net carbon dioxide (CO2) exchange rates from four halophytes which are dominant species of their corresponding habitat (Sarcocornia fruticosa in a halophilous scrub, Halimione portulacoides and Elytrigia atherica in a salt meadow, and Salicornia patula in a glasswort sward) of a Mediterranean non-tidal salt marsh. Soil CO2 and methane (CH4) fluxes from these habitats were also measured. E. atherica, a perennial herbaceous species, showed the highest photosynthetic rates during the entire year, but S. patula, an annual succulent herb, also had remarkable photosynthetic rates in summer. Interestingly, the woody fraction of the two perennial shrubs, S. fruticosa and H. portulacoides, showed CO2 uptake during most of the daily measurements. Regarding the studied habitats, the halophilous scrub and the salt meadow showed higher soil CO2 emissions than the glasswort sward, and the overall emissions were higher than those reported for tidal salt marshes. Both soil absorption and emission of CH4 were detected. In particular, CH4 emissions were remarkably high, similar to those found in low-salinity marshes and, in general, higher than those reported for salt marshes with a high water table salinity. Soil mineralization quotients of the halophilous scrub and the salt meadow were lower than those measured at the glasswort sward, suggesting a higher soil carbon sequestration potential of the first two habitats
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
peer-reviewed
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10256/28100
url http://hdl.handle.net/10256/28100
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-22-289-2025
info:eu-repo/semantics/altIdentifier/issn/1726-4170
info:eu-repo/semantics/altIdentifier/eissn/1726-4189
dc.rights.none.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
dc.source.none.fl_str_mv Biogeosciences, 2025, vol. 22, núm. 1, p. 289-304
Articles publicats (D-EQATA)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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