Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco

Autores
Osinaga, Natalia Andrea; Alvarez, Carina Rosa; Taboada, Miguel Angel
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The sub-humid Chaco region of Argentina, originally covered by dry sclerophyll forest, has been subjected to clearing since the end of the '70 and replacement of the forest by no till farming. Land use changes produced a decrease in aboveground carbon stored in forests, but little is known about the impact on soil organic C stocks. The aim of this study was to evaluate soil C stocks and C fractions up to 1m depth in soils under different land use: <10yr continuous cropping; >20yr continuous cropping, warm season grass pasture and native forest in 32 sites distributed over the Chaco region. The organic C stock content up to 1m depth expressed as equivalent mass varied as follows: forest (119.3Mgha−1)>pasture (87.9Mgha−1)>continuous cropping (71.9 and 77.3Mgha−1), with no impact of the number of years under cropping. The most sensitive organic carbon fraction was the coarse particle fraction (2000μm–212μm) at 0–5cm and 5–20cm depth layers. Resistant carbon (<53μm) was the main organic matter fraction in all sample categories except in the forest. Organic C stock, its quality and distribution in the profile were sensitive to land use change. The conversion of the Chaco forest to crops was associated to a decrease of Organic C stock up to the meter depth and with the decrease of the labile fraction. The incorporation of pastures of warm-season grasses was able to mitigate the decrease of C stocks caused by cropping and so could be considered a sustainable management practice. As soil organic carbon losses were not restricted to the first few cm of the soil, the development of models that would allow the estimation of soil organic carbon changes in depth would be useful to evaluate with greater precision the impact of land use change on carbon stocks.
Instituto de Suelos
Fil: Osinaga, Natalia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Alvarez, Carina Rosa. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina
Fil: Taboada, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina
Fuente
SOIL 4 (4) : 251-257. (2018)
Materia
Deforestación
Utilización de la Tierra
Carbono
Deforestation
Land Use
Carbon
Soil Organic Carbon
Carbono Orgánico del Suelo
Región Chaqueña
Nivel de accesibilidad
acceso abierto
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:20.500.12123/4052
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spelling Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American ChacoOsinaga, Natalia AndreaAlvarez, Carina RosaTaboada, Miguel AngelDeforestaciónUtilización de la TierraCarbonoDeforestationLand UseCarbonSoil Organic CarbonCarbono Orgánico del SueloRegión ChaqueñaThe sub-humid Chaco region of Argentina, originally covered by dry sclerophyll forest, has been subjected to clearing since the end of the '70 and replacement of the forest by no till farming. Land use changes produced a decrease in aboveground carbon stored in forests, but little is known about the impact on soil organic C stocks. The aim of this study was to evaluate soil C stocks and C fractions up to 1m depth in soils under different land use: <10yr continuous cropping; >20yr continuous cropping, warm season grass pasture and native forest in 32 sites distributed over the Chaco region. The organic C stock content up to 1m depth expressed as equivalent mass varied as follows: forest (119.3Mgha−1)>pasture (87.9Mgha−1)>continuous cropping (71.9 and 77.3Mgha−1), with no impact of the number of years under cropping. The most sensitive organic carbon fraction was the coarse particle fraction (2000μm–212μm) at 0–5cm and 5–20cm depth layers. Resistant carbon (<53μm) was the main organic matter fraction in all sample categories except in the forest. Organic C stock, its quality and distribution in the profile were sensitive to land use change. The conversion of the Chaco forest to crops was associated to a decrease of Organic C stock up to the meter depth and with the decrease of the labile fraction. The incorporation of pastures of warm-season grasses was able to mitigate the decrease of C stocks caused by cropping and so could be considered a sustainable management practice. As soil organic carbon losses were not restricted to the first few cm of the soil, the development of models that would allow the estimation of soil organic carbon changes in depth would be useful to evaluate with greater precision the impact of land use change on carbon stocks.Instituto de SuelosFil: Osinaga, Natalia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Alvarez, Carina Rosa. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; ArgentinaFil: Taboada, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; ArgentinaEuropean Geosciences Union2018-12-10T18:32:32Z2018-12-10T18:32:32Z2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/4052https://www.soil-journal.net/4/251/2018/2199-39712199-398X (Online)https://doi.org/10.5194/soil-4-251-2018SOIL 4 (4) : 251-257. (2018)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:44:22Zoai:localhost:20.500.12123/4052instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:44:23.014INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
title Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
spellingShingle Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
Osinaga, Natalia Andrea
Deforestación
Utilización de la Tierra
Carbono
Deforestation
Land Use
Carbon
Soil Organic Carbon
Carbono Orgánico del Suelo
Región Chaqueña
title_short Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
title_full Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
title_fullStr Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
title_full_unstemmed Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
title_sort Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
dc.creator.none.fl_str_mv Osinaga, Natalia Andrea
Alvarez, Carina Rosa
Taboada, Miguel Angel
author Osinaga, Natalia Andrea
author_facet Osinaga, Natalia Andrea
Alvarez, Carina Rosa
Taboada, Miguel Angel
author_role author
author2 Alvarez, Carina Rosa
Taboada, Miguel Angel
author2_role author
author
dc.subject.none.fl_str_mv Deforestación
Utilización de la Tierra
Carbono
Deforestation
Land Use
Carbon
Soil Organic Carbon
Carbono Orgánico del Suelo
Región Chaqueña
topic Deforestación
Utilización de la Tierra
Carbono
Deforestation
Land Use
Carbon
Soil Organic Carbon
Carbono Orgánico del Suelo
Región Chaqueña
dc.description.none.fl_txt_mv The sub-humid Chaco region of Argentina, originally covered by dry sclerophyll forest, has been subjected to clearing since the end of the '70 and replacement of the forest by no till farming. Land use changes produced a decrease in aboveground carbon stored in forests, but little is known about the impact on soil organic C stocks. The aim of this study was to evaluate soil C stocks and C fractions up to 1m depth in soils under different land use: <10yr continuous cropping; >20yr continuous cropping, warm season grass pasture and native forest in 32 sites distributed over the Chaco region. The organic C stock content up to 1m depth expressed as equivalent mass varied as follows: forest (119.3Mgha−1)>pasture (87.9Mgha−1)>continuous cropping (71.9 and 77.3Mgha−1), with no impact of the number of years under cropping. The most sensitive organic carbon fraction was the coarse particle fraction (2000μm–212μm) at 0–5cm and 5–20cm depth layers. Resistant carbon (<53μm) was the main organic matter fraction in all sample categories except in the forest. Organic C stock, its quality and distribution in the profile were sensitive to land use change. The conversion of the Chaco forest to crops was associated to a decrease of Organic C stock up to the meter depth and with the decrease of the labile fraction. The incorporation of pastures of warm-season grasses was able to mitigate the decrease of C stocks caused by cropping and so could be considered a sustainable management practice. As soil organic carbon losses were not restricted to the first few cm of the soil, the development of models that would allow the estimation of soil organic carbon changes in depth would be useful to evaluate with greater precision the impact of land use change on carbon stocks.
Instituto de Suelos
Fil: Osinaga, Natalia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Alvarez, Carina Rosa. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina
Fil: Taboada, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Suelos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Fertilidad y Fertilizantes; Argentina
description The sub-humid Chaco region of Argentina, originally covered by dry sclerophyll forest, has been subjected to clearing since the end of the '70 and replacement of the forest by no till farming. Land use changes produced a decrease in aboveground carbon stored in forests, but little is known about the impact on soil organic C stocks. The aim of this study was to evaluate soil C stocks and C fractions up to 1m depth in soils under different land use: <10yr continuous cropping; >20yr continuous cropping, warm season grass pasture and native forest in 32 sites distributed over the Chaco region. The organic C stock content up to 1m depth expressed as equivalent mass varied as follows: forest (119.3Mgha−1)>pasture (87.9Mgha−1)>continuous cropping (71.9 and 77.3Mgha−1), with no impact of the number of years under cropping. The most sensitive organic carbon fraction was the coarse particle fraction (2000μm–212μm) at 0–5cm and 5–20cm depth layers. Resistant carbon (<53μm) was the main organic matter fraction in all sample categories except in the forest. Organic C stock, its quality and distribution in the profile were sensitive to land use change. The conversion of the Chaco forest to crops was associated to a decrease of Organic C stock up to the meter depth and with the decrease of the labile fraction. The incorporation of pastures of warm-season grasses was able to mitigate the decrease of C stocks caused by cropping and so could be considered a sustainable management practice. As soil organic carbon losses were not restricted to the first few cm of the soil, the development of models that would allow the estimation of soil organic carbon changes in depth would be useful to evaluate with greater precision the impact of land use change on carbon stocks.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-10T18:32:32Z
2018-12-10T18:32:32Z
2018
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/20.500.12123/4052
https://www.soil-journal.net/4/251/2018/
2199-3971
2199-398X (Online)
https://doi.org/10.5194/soil-4-251-2018
url http://hdl.handle.net/20.500.12123/4052
https://www.soil-journal.net/4/251/2018/
https://doi.org/10.5194/soil-4-251-2018
identifier_str_mv 2199-3971
2199-398X (Online)
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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 openAccess
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 European Geosciences Union
publisher.none.fl_str_mv European Geosciences Union
dc.source.none.fl_str_mv SOIL 4 (4) : 251-257. (2018)
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 12.559606

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