CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case

Autores
Lewczuk, Nuria Andrea; Posse Beaulieu, Gabriela; Richter, Klaus; Achkar, Antonio
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The estimation of the GHG balance of agroecosystems is essential to evaluate the impact of agriculture on the composition of the atmosphere. Cultivated soils may act as a sink or a source of CO2 and usually emit N2O. The aim of the present study was to assess the CO2 and N2O balances, and to analyze the relationships between N2O fluxes and environmental variables for two soybean growing seasons and the fallow period between them, in an agricultural field in the Pampas region of Argentina. The fluxes of CO2 and N2O were measured by the eddy covariance and the static-chamber methods, respectively. The net ecosystem exchange from sowing to harvest was −2543 and −2307 kg CO2-C ha−1, for the first and second growing seasons, respectively. The N2O net balance over the same periods was 1.45 and 0.96 kg N2O-N ha−1. A multivariate analysis showed that during the growing season the most important variable influencing N2O emission was % water filled pore space (% WFPS), followed by nitrate content and soil temperature. During fallow, soil temperature was the main control factor, followed by % WPFS. The total balance (including CO2 and N2O) showed that the soil gained 753.5 kg Ceq ha−1 on average during cultivarion cycle. Taking into account the fallow period, the global balance resulted in a carbon loss of 1328.5 kg Ceq ha−1 over about one year. Our results clearly indicate the need to incorporate winter cover crops for improving the production system, as they can provide carbon to the soil and use the available stubble nitrogen from the previous crop.
Instituto de Clima y Agua
Fil: Lewczuk, Nuria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; 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
Fil: Richter, Klaus. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
Fil: Achkar, Antonio. Universidad Católica de Santa Fe. Área Informática; Argentina
Fuente
Soil and tillage research 169 : 65-70. (June 2017)
Materia
Soja
Dióxido de Carbono
Óxido Nitroso
Estudios de Casos Prácticos
Soybeans
Carbon Dioxide
Nitrous Oxide
Case Studies
Carbon Balance
Eddy Covariance
Vented Static Chambers
Balance de Carbono
Región Pampena
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/3561
Acceder
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oai_identifier_str oai:localhost:20.500.12123/3561
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study caseLewczuk, Nuria AndreaPosse Beaulieu, GabrielaRichter, KlausAchkar, AntonioSojaDióxido de CarbonoÓxido NitrosoEstudios de Casos PrácticosSoybeansCarbon DioxideNitrous OxideCase StudiesCarbon BalanceEddy CovarianceVented Static ChambersBalance de CarbonoRegión PampenaThe estimation of the GHG balance of agroecosystems is essential to evaluate the impact of agriculture on the composition of the atmosphere. Cultivated soils may act as a sink or a source of CO2 and usually emit N2O. The aim of the present study was to assess the CO2 and N2O balances, and to analyze the relationships between N2O fluxes and environmental variables for two soybean growing seasons and the fallow period between them, in an agricultural field in the Pampas region of Argentina. The fluxes of CO2 and N2O were measured by the eddy covariance and the static-chamber methods, respectively. The net ecosystem exchange from sowing to harvest was −2543 and −2307 kg CO2-C ha−1, for the first and second growing seasons, respectively. The N2O net balance over the same periods was 1.45 and 0.96 kg N2O-N ha−1. A multivariate analysis showed that during the growing season the most important variable influencing N2O emission was % water filled pore space (% WFPS), followed by nitrate content and soil temperature. During fallow, soil temperature was the main control factor, followed by % WPFS. The total balance (including CO2 and N2O) showed that the soil gained 753.5 kg Ceq ha−1 on average during cultivarion cycle. Taking into account the fallow period, the global balance resulted in a carbon loss of 1328.5 kg Ceq ha−1 over about one year. Our results clearly indicate the need to incorporate winter cover crops for improving the production system, as they can provide carbon to the soil and use the available stubble nitrogen from the previous crop.Instituto de Clima y AguaFil: Lewczuk, Nuria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Posse Beaulieu, Gabriela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; ArgentinaFil: Richter, Klaus. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; ArgentinaFil: Achkar, Antonio. Universidad Católica de Santa Fe. Área Informática; ArgentinaElsevier2018-10-05T15:00:38Z2018-10-05T15:00:38Z2017-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/3561https://www.sciencedirect.com/science/article/pii/S0167198717300259?via%3Dihub0167-1987https://doi.org/10.1016/j.still.2017.01.017Soil and tillage research 169 : 65-70. (June 2017)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología AgropecuariaengPampa (general region)info:eu-repo/semantics/restrictedAccess2025-09-04T09:47:35Zoai:localhost:20.500.12123/3561instacron: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 09:47:36.89INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
title CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
spellingShingle CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
Lewczuk, Nuria Andrea
Soja
Dióxido de Carbono
Óxido Nitroso
Estudios de Casos Prácticos
Soybeans
Carbon Dioxide
Nitrous Oxide
Case Studies
Carbon Balance
Eddy Covariance
Vented Static Chambers
Balance de Carbono
Región Pampena
title_short CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
title_full CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
title_fullStr CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
title_full_unstemmed CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
title_sort CO2 and N2O flux balance on soybean fields during growth and fallow periods in the Argentine Pampas—A study case
dc.creator.none.fl_str_mv Lewczuk, Nuria Andrea
Posse Beaulieu, Gabriela
Richter, Klaus
Achkar, Antonio
author Lewczuk, Nuria Andrea
author_facet Lewczuk, Nuria Andrea
Posse Beaulieu, Gabriela
Richter, Klaus
Achkar, Antonio
author_role author
author2 Posse Beaulieu, Gabriela
Richter, Klaus
Achkar, Antonio
author2_role author
author
author
dc.subject.none.fl_str_mv Soja
Dióxido de Carbono
Óxido Nitroso
Estudios de Casos Prácticos
Soybeans
Carbon Dioxide
Nitrous Oxide
Case Studies
Carbon Balance
Eddy Covariance
Vented Static Chambers
Balance de Carbono
Región Pampena
topic Soja
Dióxido de Carbono
Óxido Nitroso
Estudios de Casos Prácticos
Soybeans
Carbon Dioxide
Nitrous Oxide
Case Studies
Carbon Balance
Eddy Covariance
Vented Static Chambers
Balance de Carbono
Región Pampena
dc.description.none.fl_txt_mv The estimation of the GHG balance of agroecosystems is essential to evaluate the impact of agriculture on the composition of the atmosphere. Cultivated soils may act as a sink or a source of CO2 and usually emit N2O. The aim of the present study was to assess the CO2 and N2O balances, and to analyze the relationships between N2O fluxes and environmental variables for two soybean growing seasons and the fallow period between them, in an agricultural field in the Pampas region of Argentina. The fluxes of CO2 and N2O were measured by the eddy covariance and the static-chamber methods, respectively. The net ecosystem exchange from sowing to harvest was −2543 and −2307 kg CO2-C ha−1, for the first and second growing seasons, respectively. The N2O net balance over the same periods was 1.45 and 0.96 kg N2O-N ha−1. A multivariate analysis showed that during the growing season the most important variable influencing N2O emission was % water filled pore space (% WFPS), followed by nitrate content and soil temperature. During fallow, soil temperature was the main control factor, followed by % WPFS. The total balance (including CO2 and N2O) showed that the soil gained 753.5 kg Ceq ha−1 on average during cultivarion cycle. Taking into account the fallow period, the global balance resulted in a carbon loss of 1328.5 kg Ceq ha−1 over about one year. Our results clearly indicate the need to incorporate winter cover crops for improving the production system, as they can provide carbon to the soil and use the available stubble nitrogen from the previous crop.
Instituto de Clima y Agua
Fil: Lewczuk, Nuria Andrea. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; 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
Fil: Richter, Klaus. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Clima y Agua; Argentina
Fil: Achkar, Antonio. Universidad Católica de Santa Fe. Área Informática; Argentina
description The estimation of the GHG balance of agroecosystems is essential to evaluate the impact of agriculture on the composition of the atmosphere. Cultivated soils may act as a sink or a source of CO2 and usually emit N2O. The aim of the present study was to assess the CO2 and N2O balances, and to analyze the relationships between N2O fluxes and environmental variables for two soybean growing seasons and the fallow period between them, in an agricultural field in the Pampas region of Argentina. The fluxes of CO2 and N2O were measured by the eddy covariance and the static-chamber methods, respectively. The net ecosystem exchange from sowing to harvest was −2543 and −2307 kg CO2-C ha−1, for the first and second growing seasons, respectively. The N2O net balance over the same periods was 1.45 and 0.96 kg N2O-N ha−1. A multivariate analysis showed that during the growing season the most important variable influencing N2O emission was % water filled pore space (% WFPS), followed by nitrate content and soil temperature. During fallow, soil temperature was the main control factor, followed by % WPFS. The total balance (including CO2 and N2O) showed that the soil gained 753.5 kg Ceq ha−1 on average during cultivarion cycle. Taking into account the fallow period, the global balance resulted in a carbon loss of 1328.5 kg Ceq ha−1 over about one year. Our results clearly indicate the need to incorporate winter cover crops for improving the production system, as they can provide carbon to the soil and use the available stubble nitrogen from the previous crop.
publishDate 2017
dc.date.none.fl_str_mv 2017-06
2018-10-05T15:00:38Z
2018-10-05T15:00:38Z
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/20.500.12123/3561
https://www.sciencedirect.com/science/article/pii/S0167198717300259?via%3Dihub
0167-1987
https://doi.org/10.1016/j.still.2017.01.017
url http://hdl.handle.net/20.500.12123/3561
https://www.sciencedirect.com/science/article/pii/S0167198717300259?via%3Dihub
https://doi.org/10.1016/j.still.2017.01.017
identifier_str_mv 0167-1987
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 Pampa (general region)
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Soil and tillage research 169 : 65-70. (June 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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score 12.623145

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