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dc.contributor.author
Osinaga, Natalia Andrea
dc.contributor.author
Alvarez, Carina Rosa
dc.contributor.author
Taboada, Miguel Angel
dc.date.available
2022-11-03T19:43:06Z
dc.date.issued
2018-04
dc.identifier.citation
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
dc.identifier.uri
http://hdl.handle.net/11336/176329
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Copernicus Publications
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
SUBTROPICAL SOILS
dc.subject
LAND USE CHANGES
dc.subject
DEFORESTATION
dc.subject
NO TILLAGE
dc.subject.classification
Ciencias del Suelo
dc.subject.classification
Agricultura, Silvicultura y Pesca
dc.subject.classification
CIENCIAS AGRÍCOLAS
dc.title
Effect of deforestation and subsequent land-use management on soil carbon stocks in the South American Chaco
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-11-02T15:39:44Z
dc.identifier.eissn
2199-3998
dc.journal.volume
4
dc.journal.number
4
dc.journal.pagination
251-257
dc.journal.pais
Alemania
dc.journal.ciudad
Gotinga
dc.description.fil
Fil: Osinaga, Natalia Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: 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; Argentina
dc.description.fil
Fil: 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; Argentina
dc.journal.title
Soil Discussions
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://soil.copernicus.org/articles/4/251/2018/soil-4-251-2018-discussion.html
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5194/soil-2017-34
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