Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina
- Autores
- Nosetto, Marcelo Daniel; Luna Toledo, Emanuel Santiago; Magliano, Patricio Nicolás; Figuerola, Patricia; Blanco, Lisandro Javier; Jobbagy Gampel, Esteban Gabriel
- Año de publicación
- 2020
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The dry forests of South America are a key player of the global carbon cycle and the regional water cycle, but they are being intensively deforested. We used eddy covariance measurements to compare the temporal patterns of CO2 and water vapour fluxes and their relationships with environmental variables in dry forest and pastures sites of central Argentina. Ecosystem fluxes showed clear contrasts in magnitude, timing and response to environmental controls between ecosystems. The dry forest displayed higher daily gross primary productivity (GPP, 10.6 vs. 7.8 g CO2 m−2 d−1) and ecosystem respiration (Reco, 9.1 vs. 7.0 g CO2 m−2 d−1) and lower net ecosystem exchange (NEE, −1.5 vs. −0.7 g CO2 m−2 d−1) than the pasture. These differences were explained by a lower tolerance of the pasture to cool temperatures and drought. The lowest NEE rates were observed between 26°C and 34°C in the pasture, but below this range, NEE increased sharply, switching to a carbon source with temperatures <20°C. By contrast, the dry forest remained as a strong carbon sink down to 18°C. The pasture also showed a stronger drop of GPP with drought compared with the dry forest, becoming a carbon source with soil wetness <25% of soil available water. Rainfall was strongly coupled with GPP in both ecosystems, but the dry forest responded to longer rainfall integration periods. This study helps to understand how ecosystems can respond to climate change, improve global scale modelling and increase the productivity and resilience of rangelands.
EEA La Rioja
Fil: Nosetto, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Cátedra de Climatología Agrícola; Argentina
Fil: Luna Toledo, Emanuel Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina. Universidad Nacional de Chilecito. Instituto de Ambiente de Montaña y Regiones Áridas; Argentina
Fil: Magliano, Patricio Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; Argentina
Fil: Figuerola, Patricia. Universidad Nacional de Chilecito. Instituto de Ambiente de Montaña y Regiones Áridas; Argentina
Fil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; 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. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina - Fuente
- Ecohydrology (First published: 24 August 2020)
- Materia
-
Bosques
Balance Hídrico
Dióxido de Carbono
Pastizales
Lluvia
Forests
Water Balance
Carbon Dioxide
Pastures
Rain
CO2 - Nivel de accesibilidad
- acceso restringido
- Condiciones de uso
- Repositorio
.jpg)
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/8003
Ver los metadatos del registro completo
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Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central ArgentinaNosetto, Marcelo DanielLuna Toledo, Emanuel SantiagoMagliano, Patricio NicolásFiguerola, PatriciaBlanco, Lisandro JavierJobbagy Gampel, Esteban GabrielBosquesBalance HídricoDióxido de CarbonoPastizalesLluviaForestsWater BalanceCarbon DioxidePasturesRainCO2The dry forests of South America are a key player of the global carbon cycle and the regional water cycle, but they are being intensively deforested. We used eddy covariance measurements to compare the temporal patterns of CO2 and water vapour fluxes and their relationships with environmental variables in dry forest and pastures sites of central Argentina. Ecosystem fluxes showed clear contrasts in magnitude, timing and response to environmental controls between ecosystems. The dry forest displayed higher daily gross primary productivity (GPP, 10.6 vs. 7.8 g CO2 m−2 d−1) and ecosystem respiration (Reco, 9.1 vs. 7.0 g CO2 m−2 d−1) and lower net ecosystem exchange (NEE, −1.5 vs. −0.7 g CO2 m−2 d−1) than the pasture. These differences were explained by a lower tolerance of the pasture to cool temperatures and drought. The lowest NEE rates were observed between 26°C and 34°C in the pasture, but below this range, NEE increased sharply, switching to a carbon source with temperatures <20°C. By contrast, the dry forest remained as a strong carbon sink down to 18°C. The pasture also showed a stronger drop of GPP with drought compared with the dry forest, becoming a carbon source with soil wetness <25% of soil available water. Rainfall was strongly coupled with GPP in both ecosystems, but the dry forest responded to longer rainfall integration periods. This study helps to understand how ecosystems can respond to climate change, improve global scale modelling and increase the productivity and resilience of rangelands.EEA La RiojaFil: Nosetto, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Cátedra de Climatología Agrícola; ArgentinaFil: Luna Toledo, Emanuel Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina. Universidad Nacional de Chilecito. Instituto de Ambiente de Montaña y Regiones Áridas; ArgentinaFil: Magliano, Patricio Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; ArgentinaFil: Figuerola, Patricia. Universidad Nacional de Chilecito. Instituto de Ambiente de Montaña y Regiones Áridas; ArgentinaFil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; ArgentinaFil: Jobbagy Gampel, Esteban Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; ArgentinaWiley2020-10-02T20:09:18Z2020-10-02T20:09:18Z2020-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/8003https://onlinelibrary.wiley.com/doi/abs/10.1002/eco.22441936-0592https://doi.org/10.1002/eco.2244Ecohydrology (First published: 24 August 2020)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-10-23T11:17:23Zoai:localhost:20.500.12123/8003instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:17:23.625INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse |
| dc.title.none.fl_str_mv |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina |
| title |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina |
| spellingShingle |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina Nosetto, Marcelo Daniel Bosques Balance Hídrico Dióxido de Carbono Pastizales Lluvia Forests Water Balance Carbon Dioxide Pastures Rain CO2 |
| title_short |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina |
| title_full |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina |
| title_fullStr |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina |
| title_full_unstemmed |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina |
| title_sort |
Contrasting CO2 and water vapour fluxes in dry forest and pasture sites of central Argentina |
| dc.creator.none.fl_str_mv |
Nosetto, Marcelo Daniel Luna Toledo, Emanuel Santiago Magliano, Patricio Nicolás Figuerola, Patricia Blanco, Lisandro Javier Jobbagy Gampel, Esteban Gabriel |
| author |
Nosetto, Marcelo Daniel |
| author_facet |
Nosetto, Marcelo Daniel Luna Toledo, Emanuel Santiago Magliano, Patricio Nicolás Figuerola, Patricia Blanco, Lisandro Javier Jobbagy Gampel, Esteban Gabriel |
| author_role |
author |
| author2 |
Luna Toledo, Emanuel Santiago Magliano, Patricio Nicolás Figuerola, Patricia Blanco, Lisandro Javier Jobbagy Gampel, Esteban Gabriel |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Bosques Balance Hídrico Dióxido de Carbono Pastizales Lluvia Forests Water Balance Carbon Dioxide Pastures Rain CO2 |
| topic |
Bosques Balance Hídrico Dióxido de Carbono Pastizales Lluvia Forests Water Balance Carbon Dioxide Pastures Rain CO2 |
| dc.description.none.fl_txt_mv |
The dry forests of South America are a key player of the global carbon cycle and the regional water cycle, but they are being intensively deforested. We used eddy covariance measurements to compare the temporal patterns of CO2 and water vapour fluxes and their relationships with environmental variables in dry forest and pastures sites of central Argentina. Ecosystem fluxes showed clear contrasts in magnitude, timing and response to environmental controls between ecosystems. The dry forest displayed higher daily gross primary productivity (GPP, 10.6 vs. 7.8 g CO2 m−2 d−1) and ecosystem respiration (Reco, 9.1 vs. 7.0 g CO2 m−2 d−1) and lower net ecosystem exchange (NEE, −1.5 vs. −0.7 g CO2 m−2 d−1) than the pasture. These differences were explained by a lower tolerance of the pasture to cool temperatures and drought. The lowest NEE rates were observed between 26°C and 34°C in the pasture, but below this range, NEE increased sharply, switching to a carbon source with temperatures <20°C. By contrast, the dry forest remained as a strong carbon sink down to 18°C. The pasture also showed a stronger drop of GPP with drought compared with the dry forest, becoming a carbon source with soil wetness <25% of soil available water. Rainfall was strongly coupled with GPP in both ecosystems, but the dry forest responded to longer rainfall integration periods. This study helps to understand how ecosystems can respond to climate change, improve global scale modelling and increase the productivity and resilience of rangelands. EEA La Rioja Fil: Nosetto, Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias. Cátedra de Climatología Agrícola; Argentina Fil: Luna Toledo, Emanuel Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; Argentina. Universidad Nacional de Chilecito. Instituto de Ambiente de Montaña y Regiones Áridas; Argentina Fil: Magliano, Patricio Nicolás. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Matemática Aplicada de San Luis. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Departamento de Bioquímica y Ciencias Biológicas; Argentina Fil: Figuerola, Patricia. Universidad Nacional de Chilecito. Instituto de Ambiente de Montaña y Regiones Áridas; Argentina Fil: Blanco, Lisandro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria La Rioja; 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. Grupo de Estudios Ambientales; Argentina. Universidad Nacional de San Luis; Argentina |
| description |
The dry forests of South America are a key player of the global carbon cycle and the regional water cycle, but they are being intensively deforested. We used eddy covariance measurements to compare the temporal patterns of CO2 and water vapour fluxes and their relationships with environmental variables in dry forest and pastures sites of central Argentina. Ecosystem fluxes showed clear contrasts in magnitude, timing and response to environmental controls between ecosystems. The dry forest displayed higher daily gross primary productivity (GPP, 10.6 vs. 7.8 g CO2 m−2 d−1) and ecosystem respiration (Reco, 9.1 vs. 7.0 g CO2 m−2 d−1) and lower net ecosystem exchange (NEE, −1.5 vs. −0.7 g CO2 m−2 d−1) than the pasture. These differences were explained by a lower tolerance of the pasture to cool temperatures and drought. The lowest NEE rates were observed between 26°C and 34°C in the pasture, but below this range, NEE increased sharply, switching to a carbon source with temperatures <20°C. By contrast, the dry forest remained as a strong carbon sink down to 18°C. The pasture also showed a stronger drop of GPP with drought compared with the dry forest, becoming a carbon source with soil wetness <25% of soil available water. Rainfall was strongly coupled with GPP in both ecosystems, but the dry forest responded to longer rainfall integration periods. This study helps to understand how ecosystems can respond to climate change, improve global scale modelling and increase the productivity and resilience of rangelands. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020-10-02T20:09:18Z 2020-10-02T20:09:18Z 2020-08 |
| 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/20.500.12123/8003 https://onlinelibrary.wiley.com/doi/abs/10.1002/eco.2244 1936-0592 https://doi.org/10.1002/eco.2244 |
| url |
http://hdl.handle.net/20.500.12123/8003 https://onlinelibrary.wiley.com/doi/abs/10.1002/eco.2244 https://doi.org/10.1002/eco.2244 |
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1936-0592 |
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eng |
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eng |
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restrictedAccess |
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application/pdf |
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Wiley |
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Wiley |
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Ecohydrology (First published: 24 August 2020) reponame:INTA Digital (INTA) instname:Instituto Nacional de Tecnología Agropecuaria |
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INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria |
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tripaldi.nicolas@inta.gob.ar |
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