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dc.contributor.author
Alvarez, Roberto
dc.contributor.author
Gimenez, Analía Verónica
dc.contributor.author
Caffaro, Maria Marta
dc.contributor.author
Pagnanini, F.
dc.contributor.author
Gangi, D.
dc.contributor.author
Berhongaray, Gonzalo
dc.date.available
2023-06-23T17:22:15Z
dc.date.issued
2022-04
dc.identifier.citation
Alvarez, Roberto; Gimenez, Analía Verónica; Caffaro, Maria Marta; Pagnanini, F.; Gangi, D.; et al.; Land Use Effects on Soil Organic Carbon Fractions in the Pampas of Argentina Determined via Inverse Analysis of Carbon Mineralization Data; Taylor & Francis; Communications in Soil Science and Plant Analysis; 53; 16; 4-2022; 2094-2104
dc.identifier.issn
0010-3624
dc.identifier.uri
http://hdl.handle.net/11336/201331
dc.description.abstract
Understanding the long-term effects of land use on soil organic carbon (SOC) is of interest due to the possibility of using soils as carbon (C) sinks. We determined how the C levels in the labile (C0) and stable (Cr) fractions of the organic matter of soils of the Pampas were affected by land use, applying the inverse analysis methodology. Soil samples (0–50 cm) taken from 198 sites under different land uses (forest, grassland, and cultivated soil) were incubated for six months, adjusting a one pool exponential model to C mineralization data. The model allowed a good estimation of C0 (R2 = 0.96–0.98) and Cr was calculated by difference with SOC. The stocks of C0 and Cr were calculated on an equivalent mass basis (5000 t soil ha−1) for comparisons. About 80% of the SOC is found in the Cr pool in the Pampas soils. Both C0 and Cr were higher in forest and grassland than in cultivated soils. Soil cultivation produced an average reduction of 30% of the C0 pool and 18% of the Cr pool in relation to grassland soils. Consequently, most of the SOC lost due to agriculture came from the Cr pool. In mixed production systems, no differences of the C pools were detected between the crop or pasture phase of the rotation. The parameters C0 and k (mineralization rate constant) of the exponential model were negatively correlated, so the comparison of C0 between different land uses must be careful. The k parameter was similar among land uses when the comparison was made for similar values of C0, suggesting that land use affected the size of the C pools not their stability. Forest and grasslands were effective systems for sequestering C in stable forms. Expanding the cultivated area in the Pampas should be avoided if it is desired not to emit C into the atmosphere from the soil.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Taylor & Francis
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CARBON MINERALIZATION
dc.subject
INVERSE ANALYSIS
dc.subject
LAND USE
dc.subject
SOIL ORGANIC CARBON
dc.subject.classification
Agricultura
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Agricultura, Silvicultura y Pesca
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CIENCIAS AGRÍCOLAS
dc.title
Land Use Effects on Soil Organic Carbon Fractions in the Pampas of Argentina Determined via Inverse Analysis of Carbon Mineralization Data
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-06-23T14:58:35Z
dc.journal.volume
53
dc.journal.number
16
dc.journal.pagination
2094-2104
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Londres
dc.description.fil
Fil: Alvarez, Roberto. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina
dc.description.fil
Fil: Gimenez, Analía Verónica. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina
dc.description.fil
Fil: Caffaro, Maria Marta. Universidad de Buenos Aires. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario; Argentina
dc.description.fil
Fil: Pagnanini, F.. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.description.fil
Fil: Gangi, D.. Universidad de Buenos Aires. Facultad de Agronomía; Argentina
dc.description.fil
Fil: Berhongaray, Gonzalo. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Ciencias Agropecuarias del Litoral. - Universidad Nacional del Litoral. Instituto de Ciencias Agropecuarias del Litoral.; Argentina
dc.journal.title
Communications in Soil Science and Plant Analysis
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/00103624.2022.2070629
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1080/00103624.2022.2070629
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