Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model

Autores
Merino, Rodrigo Andres; Gassmann, María Isabel; Tonti, Natalia E.; Covi, Mauro; Pérez, Claudio F.; Posse Beaulieu, Gabriela
Año de publicación
2026
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Vegetation Photosynthesis and Respiration Model (VPRM) was driven by outputs from the Weather Research and Forecasting (WRF) model to estimate Net Ecosystem Exchange (NEE) in crop‐ and pasture‐dominated environments of central Argentina. Daily simulations covering 2010–2019 were performed to determine whether these regional ecosystems functioned as net CO₂ sinks or sources. The coupled WRF-VPRM adequately reproduced daily, monthly, and annual NEE variability, with reduced skill under low-light conditions and shortcomings in representing summer–winter double-cropping systems. A pronounced CO₂ uptake occurred during the summer season, followed by sustained emissions throughout the remainder of the year. Annual mean NEE shows a west–east gradient, with stronger CO₂ sinks along the Atlantic coast, near-neutral conditions across central Argentina and net CO₂ sources in the north and along the Andes. Modeled NEE was influenced by soil moisture and air temperature variability, resulting in significant differences between annual carbon budgets. Our results indicate that the study area acted as a net CO₂ sink, with an average uptake of 0.5 g CO₂ m⁻² d⁻¹ over the study period. These findings enhance our understanding of the carbon cycle in key agroecosystems of Southeastern South America (SESA) and provide a foundation for future research on the environmental factors influencing CO₂ exchanges within SESA biomes.
Instituto de Clima y Agua
Fil: Merino, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gassmann, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tonti, N.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Covi, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Pérez, C.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
Fuente
Ecological Modelling 519 : 111665. (September 2026)
Materia
Ecosistema
Imágenes por Satélites
Argentina
Ecosystems
Satellite Imagery
Biospheric CO2 Fluxes
Eddy Covariance
Flujos de CO2 de la Biosfera
Covarianza de Remolinos
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/26457
Acceder
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oai_identifier_str oai:localhost:20.500.12123/26457
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF modelMerino, Rodrigo AndresGassmann, María IsabelTonti, Natalia E.Covi, MauroPérez, Claudio F.Posse Beaulieu, GabrielaEcosistemaImágenes por SatélitesArgentinaEcosystemsSatellite ImageryBiospheric CO2 FluxesEddy CovarianceFlujos de CO2 de la BiosferaCovarianza de RemolinosThe Vegetation Photosynthesis and Respiration Model (VPRM) was driven by outputs from the Weather Research and Forecasting (WRF) model to estimate Net Ecosystem Exchange (NEE) in crop‐ and pasture‐dominated environments of central Argentina. Daily simulations covering 2010–2019 were performed to determine whether these regional ecosystems functioned as net CO₂ sinks or sources. The coupled WRF-VPRM adequately reproduced daily, monthly, and annual NEE variability, with reduced skill under low-light conditions and shortcomings in representing summer–winter double-cropping systems. A pronounced CO₂ uptake occurred during the summer season, followed by sustained emissions throughout the remainder of the year. Annual mean NEE shows a west–east gradient, with stronger CO₂ sinks along the Atlantic coast, near-neutral conditions across central Argentina and net CO₂ sources in the north and along the Andes. Modeled NEE was influenced by soil moisture and air temperature variability, resulting in significant differences between annual carbon budgets. Our results indicate that the study area acted as a net CO₂ sink, with an average uptake of 0.5 g CO₂ m⁻² d⁻¹ over the study period. These findings enhance our understanding of the carbon cycle in key agroecosystems of Southeastern South America (SESA) and provide a foundation for future research on the environmental factors influencing CO₂ exchanges within SESA biomes.Instituto de Clima y AguaFil: Merino, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gassmann, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Tonti, N.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; ArgentinaFil: Covi, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; ArgentinaFil: Pérez, C.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; ArgentinaElsevier2026-06-03T09:59:23Z2026-06-03T09:59:23Z2026-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/26457https://www.sciencedirect.com/science/article/abs/pii/S03043800260019360304-3800https://doi.org/10.1016/j.ecolmodel.2026.111665Ecological Modelling 519 : 111665. (September 2026)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2026-06-11T09:54:45Zoai:localhost:20.500.12123/26457instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2026-06-11 09:54:45.991INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
title Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
spellingShingle Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
Merino, Rodrigo Andres
Ecosistema
Imágenes por Satélites
Argentina
Ecosystems
Satellite Imagery
Biospheric CO2 Fluxes
Eddy Covariance
Flujos de CO2 de la Biosfera
Covarianza de Remolinos
title_short Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
title_full Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
title_fullStr Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
title_full_unstemmed Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
title_sort Net ecosystem exchange in Central Argentina: A 10 year analysis using the VPRM-WRF model
dc.creator.none.fl_str_mv Merino, Rodrigo Andres
Gassmann, María Isabel
Tonti, Natalia E.
Covi, Mauro
Pérez, Claudio F.
Posse Beaulieu, Gabriela
author Merino, Rodrigo Andres
author_facet Merino, Rodrigo Andres
Gassmann, María Isabel
Tonti, Natalia E.
Covi, Mauro
Pérez, Claudio F.
Posse Beaulieu, Gabriela
author_role author
author2 Gassmann, María Isabel
Tonti, Natalia E.
Covi, Mauro
Pérez, Claudio F.
Posse Beaulieu, Gabriela
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ecosistema
Imágenes por Satélites
Argentina
Ecosystems
Satellite Imagery
Biospheric CO2 Fluxes
Eddy Covariance
Flujos de CO2 de la Biosfera
Covarianza de Remolinos
topic Ecosistema
Imágenes por Satélites
Argentina
Ecosystems
Satellite Imagery
Biospheric CO2 Fluxes
Eddy Covariance
Flujos de CO2 de la Biosfera
Covarianza de Remolinos
dc.description.none.fl_txt_mv The Vegetation Photosynthesis and Respiration Model (VPRM) was driven by outputs from the Weather Research and Forecasting (WRF) model to estimate Net Ecosystem Exchange (NEE) in crop‐ and pasture‐dominated environments of central Argentina. Daily simulations covering 2010–2019 were performed to determine whether these regional ecosystems functioned as net CO₂ sinks or sources. The coupled WRF-VPRM adequately reproduced daily, monthly, and annual NEE variability, with reduced skill under low-light conditions and shortcomings in representing summer–winter double-cropping systems. A pronounced CO₂ uptake occurred during the summer season, followed by sustained emissions throughout the remainder of the year. Annual mean NEE shows a west–east gradient, with stronger CO₂ sinks along the Atlantic coast, near-neutral conditions across central Argentina and net CO₂ sources in the north and along the Andes. Modeled NEE was influenced by soil moisture and air temperature variability, resulting in significant differences between annual carbon budgets. Our results indicate that the study area acted as a net CO₂ sink, with an average uptake of 0.5 g CO₂ m⁻² d⁻¹ over the study period. These findings enhance our understanding of the carbon cycle in key agroecosystems of Southeastern South America (SESA) and provide a foundation for future research on the environmental factors influencing CO₂ exchanges within SESA biomes.
Instituto de Clima y Agua
Fil: Merino, R.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gassmann, M.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Tonti, N.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Covi, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Pérez, C.F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
description The Vegetation Photosynthesis and Respiration Model (VPRM) was driven by outputs from the Weather Research and Forecasting (WRF) model to estimate Net Ecosystem Exchange (NEE) in crop‐ and pasture‐dominated environments of central Argentina. Daily simulations covering 2010–2019 were performed to determine whether these regional ecosystems functioned as net CO₂ sinks or sources. The coupled WRF-VPRM adequately reproduced daily, monthly, and annual NEE variability, with reduced skill under low-light conditions and shortcomings in representing summer–winter double-cropping systems. A pronounced CO₂ uptake occurred during the summer season, followed by sustained emissions throughout the remainder of the year. Annual mean NEE shows a west–east gradient, with stronger CO₂ sinks along the Atlantic coast, near-neutral conditions across central Argentina and net CO₂ sources in the north and along the Andes. Modeled NEE was influenced by soil moisture and air temperature variability, resulting in significant differences between annual carbon budgets. Our results indicate that the study area acted as a net CO₂ sink, with an average uptake of 0.5 g CO₂ m⁻² d⁻¹ over the study period. These findings enhance our understanding of the carbon cycle in key agroecosystems of Southeastern South America (SESA) and provide a foundation for future research on the environmental factors influencing CO₂ exchanges within SESA biomes.
publishDate 2026
dc.date.none.fl_str_mv 2026-06-03T09:59:23Z
2026-06-03T09:59:23Z
2026-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/26457
https://www.sciencedirect.com/science/article/abs/pii/S0304380026001936
0304-3800
https://doi.org/10.1016/j.ecolmodel.2026.111665
url http://hdl.handle.net/20.500.12123/26457
https://www.sciencedirect.com/science/article/abs/pii/S0304380026001936
https://doi.org/10.1016/j.ecolmodel.2026.111665
identifier_str_mv 0304-3800
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Ecological Modelling 519 : 111665. (September 2026)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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