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

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...

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Detalhes bibliográficos
Autores: Osinaga, Natalia Andrea, Alvarez, Carina Rosa, Taboada, Miguel Angel
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/176329
Acesso em linha:http://hdl.handle.net/11336/176329
Access Level:acceso abierto
Palavra-chave:SUBTROPICAL SOILS
LAND USE CHANGES
DEFORESTATION
NO TILLAGE
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
id AR_728afc6594de941b5c5264cde37cce80
oai_identifier_str oai:ri.conicet.gov.ar:11336/176329
network_acronym_str AR
network_name_str Argentina
repository_id_str
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
SUBTROPICAL SOILS
LAND USE CHANGES
DEFORESTATION
NO TILLAGE
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
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 SUBTROPICAL SOILS
LAND USE CHANGES
DEFORESTATION
NO TILLAGE
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
topic SUBTROPICAL SOILS
LAND USE CHANGES
DEFORESTATION
NO TILLAGE
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
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 1 m depth in soils under different land use: < 10 yr continuous cropping; > 20 yr continuous cropping, warm season grass pasture and native forest in 32 sites distributed over the Chaco region. The organic C stock content up to 1 m depth expressed as equivalent mass varied as follows: forest (119.3 Mg ha−1) > pasture (87.9 Mg ha−1) > continuous cropping (71.9 and 77.3 Mg ha−1), with no impact of the number of years under cropping. The most sensitive organic carbon fraction was the coarse particle fraction (2000 μm?212 μm) at 0?5 cm and 5?20 cm depth layers. Resistant carbon (< 53 μm) 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 2018-04
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/11336/176329
Osinaga, Natalia Andrea; Alvarez, Carina Rosa; Taboada, Miguel Angel; Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco; Copernicus Publications; Soil Discussions; 4; 4; 4-2018; 251-257
2199-3998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/176329
identifier_str_mv Osinaga, Natalia Andrea; Alvarez, Carina Rosa; Taboada, Miguel Angel; Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco; Copernicus Publications; Soil Discussions; 4; 4; 4-2018; 251-257
2199-3998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://soil.copernicus.org/articles/4/251/2018/soil-4-251-2018-discussion.html
info:eu-repo/semantics/altIdentifier/doi/10.5194/soil-2017-34
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1799194942076092416
spelling Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American ChacoOsinaga, Natalia AndreaAlvarez, Carina RosaTaboada, Miguel AngelSUBTROPICAL SOILSLAND USE CHANGESDEFORESTATIONNO TILLAGEhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4The 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 1 m depth in soils under different land use: < 10 yr continuous cropping; > 20 yr continuous cropping, warm season grass pasture and native forest in 32 sites distributed over the Chaco region. The organic C stock content up to 1 m depth expressed as equivalent mass varied as follows: forest (119.3 Mg ha−1) > pasture (87.9 Mg ha−1) > continuous cropping (71.9 and 77.3 Mg ha−1), with no impact of the number of years under cropping. The most sensitive organic carbon fraction was the coarse particle fraction (2000 μm?212 μm) at 0?5 cm and 5?20 cm depth layers. Resistant carbon (< 53 μm) 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.Fil: Osinaga, Natalia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Alvarez, Carina Rosa. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Ingeniería Agrícola y Uso de la Tierra. Cátedra de Fertilidad y Fertilizantes; ArgentinaFil: Taboada, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Ingeniería Agrícola y Uso de la Tierra. Cátedra de Fertilidad y Fertilizantes; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación de Recursos Naturales. Instituto de Suelos; ArgentinaCopernicus Publications2018-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/176329Osinaga, Natalia Andrea; Alvarez, Carina Rosa; Taboada, Miguel Angel; Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco; Copernicus Publications; Soil Discussions; 4; 4; 4-2018; 251-2572199-3998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://soil.copernicus.org/articles/4/251/2018/soil-4-251-2018-discussion.htmlinfo:eu-repo/semantics/altIdentifier/doi/10.5194/soil-2017-34info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:39:38Zoai:ri.conicet.gov.ar:11336/176329instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 13:39:38.4CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
score 15,811543

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