Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina

Autores
Garcia, Alfredo Gabriel; Di Bella, Carlos Marcelo; Houspanossian, Javier; Magliano, Patricio Nicolás; Jobbagy Gampel, Esteban Gabriel; Posse Beaulieu, Gabriela; Fernandez, Roberto J.; Nosetto, Marcelo Daniel
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
Covering 16% of global land surface, dry forests play a key role in the global carbon budget. The Southern Hemisphere still preserves a high proportion of its native dry forest cover, but deforestation rates have increased dramatically in the last decades. In this paper, we quantified for the first time the magnitude and temporal variability of carbon dioxide and water vapor fluxes and their environmental controls based on eddy covariance measurements in a dry forest site of central Argentina. Continuous measurements of CO2 and water vapor exchanges spanning a 15-month period (Dec. 2009 – March 2011) showed that the studied dry forest was a net sink of carbon, with an overall integrated net ecosystem exchange (NEE) of −172 g C m−2 (−132.8 g C m−2 for year 2010). The cool dry season (May–Sept.) accounted for a quarter of the total annual NEE of year 2010 with low but steady CO2 uptake rates (1 g C m−2 d−1 on average) that were more strongly associated with temperature than with soil moisture. By contrast, in the warm wet season (Oct.–April), almost three times greater CO2 uptake rates (2.7 g C m−2 d−1 on average) resulted from a highly pulsed behavior in which CO2 uptake showed sharp increases followed by rapid declines after rainfall events. Cumulative evapotranspiration (ET) during the whole study (595 mm) accounted for most of the rainfall inputs (674 mm), with daily water vapor fluxes during the wet season being four times greater compared to those observed during the dry season (1.7 mm d−1 vs. 0.45 mm d−1). Modeling of the partition of all evaporative water losses suggested that transpiration was the dominant vapor flux (67% of ET), followed by interception (20%) and soil evaporation (13%). The influence of air temperature on half-hourly CO2 fluxes was notably different for the dry and wet seasons. In the 11–34 °C air temperature range, CO2 uptake rates were higher in the warm wet rather than the cool dry season, yet this difference narrowed with temperatures >26 °C. The dry forest became a net CO2 source at 40 °C. Our study provides new insights about the functioning of dry forests and the likely response of their CO2 and water vapor exchange with the atmosphere under future climate and land use/cover changes.
Inst. de Clima y Agua
Fil: Garcia, Alfredo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
Fil: Di Bella, Carlos Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos; Argentina
Fil: Houspanossian, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; Argentina
Fil: Magliano, Patricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; Argentina
Fil: Jobbagy Gampel, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; Argentina
Fil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
Fil: Nosetto, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura. Universidad de Buenos Aires; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Cátedra de Climatología; Argentina
Fil: Fernandez, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura. Universidad de Buenos Aires; Argentina
Fuente
Agricultural and Forest Meteorology 247 : 520-532 (December 2017)
Materia
Dióxido de Carbono
Vapor de Agua
Bosques
Deforestación
Carbon Dioxide
Water Vapour
Forests
Deforestation
CO2
Argentina
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/1550

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network_name_str INTA Digital (INTA)
spelling Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central ArgentinaGarcia, Alfredo GabrielDi Bella, Carlos MarceloHouspanossian, JavierMagliano, Patricio NicolásJobbagy Gampel, Esteban GabrielPosse Beaulieu, GabrielaFernandez, Roberto J.Nosetto, Marcelo DanielDióxido de CarbonoVapor de AguaBosquesDeforestaciónCarbon DioxideWater VapourForestsDeforestationCO2ArgentinaCovering 16% of global land surface, dry forests play a key role in the global carbon budget. The Southern Hemisphere still preserves a high proportion of its native dry forest cover, but deforestation rates have increased dramatically in the last decades. In this paper, we quantified for the first time the magnitude and temporal variability of carbon dioxide and water vapor fluxes and their environmental controls based on eddy covariance measurements in a dry forest site of central Argentina. Continuous measurements of CO2 and water vapor exchanges spanning a 15-month period (Dec. 2009 – March 2011) showed that the studied dry forest was a net sink of carbon, with an overall integrated net ecosystem exchange (NEE) of −172 g C m−2 (−132.8 g C m−2 for year 2010). The cool dry season (May–Sept.) accounted for a quarter of the total annual NEE of year 2010 with low but steady CO2 uptake rates (1 g C m−2 d−1 on average) that were more strongly associated with temperature than with soil moisture. By contrast, in the warm wet season (Oct.–April), almost three times greater CO2 uptake rates (2.7 g C m−2 d−1 on average) resulted from a highly pulsed behavior in which CO2 uptake showed sharp increases followed by rapid declines after rainfall events. Cumulative evapotranspiration (ET) during the whole study (595 mm) accounted for most of the rainfall inputs (674 mm), with daily water vapor fluxes during the wet season being four times greater compared to those observed during the dry season (1.7 mm d−1 vs. 0.45 mm d−1). Modeling of the partition of all evaporative water losses suggested that transpiration was the dominant vapor flux (67% of ET), followed by interception (20%) and soil evaporation (13%). The influence of air temperature on half-hourly CO2 fluxes was notably different for the dry and wet seasons. In the 11–34 °C air temperature range, CO2 uptake rates were higher in the warm wet rather than the cool dry season, yet this difference narrowed with temperatures >26 °C. The dry forest became a net CO2 source at 40 °C. Our study provides new insights about the functioning of dry forests and the likely response of their CO2 and water vapor exchange with the atmosphere under future climate and land use/cover changes.Inst. de Clima y AguaFil: Garcia, Alfredo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; ArgentinaFil: Di Bella, Carlos Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos; ArgentinaFil: Houspanossian, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; ArgentinaFil: Magliano, Patricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; ArgentinaFil: Jobbagy Gampel, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; ArgentinaFil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; ArgentinaFil: Nosetto, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura. Universidad de Buenos Aires; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Cátedra de Climatología; ArgentinaFil: Fernandez, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura. Universidad de Buenos Aires; ArgentinaElsevier2017-10-20T13:58:22Z2017-10-20T13:58:22Z2017-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/1550https://www.sciencedirect.com/science/article/pii/S01681923173027210168-1923https://doi.org/10.1016/j.agrformet.2017.08.015Agricultural and Forest Meteorology 247 : 520-532 (December 2017)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología AgropecuariaengArgentina (nation)info:eu-repo/semantics/restrictedAccess2025-09-04T09:47:06Zoai:localhost:20.500.12123/1550instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:47:07.202INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
title Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
spellingShingle Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
Garcia, Alfredo Gabriel
Dióxido de Carbono
Vapor de Agua
Bosques
Deforestación
Carbon Dioxide
Water Vapour
Forests
Deforestation
CO2
Argentina
title_short Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
title_full Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
title_fullStr Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
title_full_unstemmed Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
title_sort Patterns and controls of carbon dioxide and water vapor fluxes in a dry forest of central Argentina
dc.creator.none.fl_str_mv Garcia, Alfredo Gabriel
Di Bella, Carlos Marcelo
Houspanossian, Javier
Magliano, Patricio Nicolás
Jobbagy Gampel, Esteban Gabriel
Posse Beaulieu, Gabriela
Fernandez, Roberto J.
Nosetto, Marcelo Daniel
author Garcia, Alfredo Gabriel
author_facet Garcia, Alfredo Gabriel
Di Bella, Carlos Marcelo
Houspanossian, Javier
Magliano, Patricio Nicolás
Jobbagy Gampel, Esteban Gabriel
Posse Beaulieu, Gabriela
Fernandez, Roberto J.
Nosetto, Marcelo Daniel
author_role author
author2 Di Bella, Carlos Marcelo
Houspanossian, Javier
Magliano, Patricio Nicolás
Jobbagy Gampel, Esteban Gabriel
Posse Beaulieu, Gabriela
Fernandez, Roberto J.
Nosetto, Marcelo Daniel
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Dióxido de Carbono
Vapor de Agua
Bosques
Deforestación
Carbon Dioxide
Water Vapour
Forests
Deforestation
CO2
Argentina
topic Dióxido de Carbono
Vapor de Agua
Bosques
Deforestación
Carbon Dioxide
Water Vapour
Forests
Deforestation
CO2
Argentina
dc.description.none.fl_txt_mv Covering 16% of global land surface, dry forests play a key role in the global carbon budget. The Southern Hemisphere still preserves a high proportion of its native dry forest cover, but deforestation rates have increased dramatically in the last decades. In this paper, we quantified for the first time the magnitude and temporal variability of carbon dioxide and water vapor fluxes and their environmental controls based on eddy covariance measurements in a dry forest site of central Argentina. Continuous measurements of CO2 and water vapor exchanges spanning a 15-month period (Dec. 2009 – March 2011) showed that the studied dry forest was a net sink of carbon, with an overall integrated net ecosystem exchange (NEE) of −172 g C m−2 (−132.8 g C m−2 for year 2010). The cool dry season (May–Sept.) accounted for a quarter of the total annual NEE of year 2010 with low but steady CO2 uptake rates (1 g C m−2 d−1 on average) that were more strongly associated with temperature than with soil moisture. By contrast, in the warm wet season (Oct.–April), almost three times greater CO2 uptake rates (2.7 g C m−2 d−1 on average) resulted from a highly pulsed behavior in which CO2 uptake showed sharp increases followed by rapid declines after rainfall events. Cumulative evapotranspiration (ET) during the whole study (595 mm) accounted for most of the rainfall inputs (674 mm), with daily water vapor fluxes during the wet season being four times greater compared to those observed during the dry season (1.7 mm d−1 vs. 0.45 mm d−1). Modeling of the partition of all evaporative water losses suggested that transpiration was the dominant vapor flux (67% of ET), followed by interception (20%) and soil evaporation (13%). The influence of air temperature on half-hourly CO2 fluxes was notably different for the dry and wet seasons. In the 11–34 °C air temperature range, CO2 uptake rates were higher in the warm wet rather than the cool dry season, yet this difference narrowed with temperatures >26 °C. The dry forest became a net CO2 source at 40 °C. Our study provides new insights about the functioning of dry forests and the likely response of their CO2 and water vapor exchange with the atmosphere under future climate and land use/cover changes.
Inst. de Clima y Agua
Fil: Garcia, Alfredo Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
Fil: Di Bella, Carlos Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Métodos Cuantitativos; Argentina
Fil: Houspanossian, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; Argentina
Fil: Magliano, Patricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; Argentina
Fil: Jobbagy Gampel, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis; Argentina. Universidad Nacional de San Luis; Argentina
Fil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
Fil: Nosetto, Marcelo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura. Universidad de Buenos Aires; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Cátedra de Climatología; Argentina
Fil: Fernandez, Roberto J. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de investigación Fisiológicas y Ecológicas Vinculado a la Agricultura. Universidad de Buenos Aires; Argentina
description Covering 16% of global land surface, dry forests play a key role in the global carbon budget. The Southern Hemisphere still preserves a high proportion of its native dry forest cover, but deforestation rates have increased dramatically in the last decades. In this paper, we quantified for the first time the magnitude and temporal variability of carbon dioxide and water vapor fluxes and their environmental controls based on eddy covariance measurements in a dry forest site of central Argentina. Continuous measurements of CO2 and water vapor exchanges spanning a 15-month period (Dec. 2009 – March 2011) showed that the studied dry forest was a net sink of carbon, with an overall integrated net ecosystem exchange (NEE) of −172 g C m−2 (−132.8 g C m−2 for year 2010). The cool dry season (May–Sept.) accounted for a quarter of the total annual NEE of year 2010 with low but steady CO2 uptake rates (1 g C m−2 d−1 on average) that were more strongly associated with temperature than with soil moisture. By contrast, in the warm wet season (Oct.–April), almost three times greater CO2 uptake rates (2.7 g C m−2 d−1 on average) resulted from a highly pulsed behavior in which CO2 uptake showed sharp increases followed by rapid declines after rainfall events. Cumulative evapotranspiration (ET) during the whole study (595 mm) accounted for most of the rainfall inputs (674 mm), with daily water vapor fluxes during the wet season being four times greater compared to those observed during the dry season (1.7 mm d−1 vs. 0.45 mm d−1). Modeling of the partition of all evaporative water losses suggested that transpiration was the dominant vapor flux (67% of ET), followed by interception (20%) and soil evaporation (13%). The influence of air temperature on half-hourly CO2 fluxes was notably different for the dry and wet seasons. In the 11–34 °C air temperature range, CO2 uptake rates were higher in the warm wet rather than the cool dry season, yet this difference narrowed with temperatures >26 °C. The dry forest became a net CO2 source at 40 °C. Our study provides new insights about the functioning of dry forests and the likely response of their CO2 and water vapor exchange with the atmosphere under future climate and land use/cover changes.
publishDate 2017
dc.date.none.fl_str_mv 2017-10-20T13:58:22Z
2017-10-20T13:58:22Z
2017-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/1550
https://www.sciencedirect.com/science/article/pii/S0168192317302721
0168-1923
https://doi.org/10.1016/j.agrformet.2017.08.015
url http://hdl.handle.net/20.500.12123/1550
https://www.sciencedirect.com/science/article/pii/S0168192317302721
https://doi.org/10.1016/j.agrformet.2017.08.015
identifier_str_mv 0168-1923
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Argentina (nation)
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Agricultural and Forest Meteorology 247 : 520-532 (December 2017)
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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