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dc.contributor.author
Alvarez, Roberto
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dc.date.available
2024-01-09T12:56:32Z
dc.date.issued
2023-03
dc.identifier.citation
Alvarez, Roberto; Croplands in the Pampas of Argentina will become an atmospheric carbon sink in coming decades; Elsevier; Geoderma Regional; 32; e00626; 3-2023; 1-12
dc.identifier.issn
2352-0094
dc.identifier.uri
http://hdl.handle.net/11336/222970
dc.description.abstract
Due to the possibility of using cultivated soils as atmospheric carbon sinks, studies are being carried out worldwide to estimate the potential of carbon sequestration in agricultural areas. In the Pampas, the soil organic carbon (SOC) stock has been calculated at regional scale but its temporal dynamic is unknown. Using information on land cover, yield trends of the main crops, SOC stocks at year 2008 and the AMG model validated with local experiments, the SOC balance of croplands in the Pampas was calculated between 2008 and 2050. Carbon inputs from grain crops were calculated using results of experimental field networks carried out in the Pampas and local coefficients were calculated for the effects of the cultivation of pastures and the adoption of cover crops on SOC. Between 2008 and 2025, the SOC balance of cultivated soils changed from slightly negative to nearly steady state as result of increases in yield and higher carbon inputs. If current rotations are maintained and the rate of increased crop productivity does not stagnate, the Pampas will become an atmospheric carbon sink between 2025 and 2050 as a result of the higher carbon inputs of crops. The adoption of cover crops will improve the balance of SOC but the main tool for sequestering carbon in soils is the replacement of part of the large area cultivated with soybean by greater biomass crops such as corn or the double crop in a year wheat/soybean. Soybean replacement will almost double the carbon sequestration rate compared to the current management and allow attaining the 4‰ goal around 2050. Pampean croplands could represent a sink for atmospheric carbon in the coming years and the management applied can determine how important the sink would be.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
AMG MODEL
dc.subject
CARBON SEQUESTRATION
dc.subject
PAMPEAN REGION
dc.subject
SOIL ORGANIC CARBON
dc.subject.classification
Ciencias del Suelo
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dc.subject.classification
Agricultura, Silvicultura y Pesca
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dc.subject.classification
CIENCIAS AGRÍCOLAS
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dc.title
Croplands in the Pampas of Argentina will become an atmospheric carbon sink in coming decades
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-01-09T10:14:07Z
dc.journal.volume
32
dc.journal.number
e00626
dc.journal.pagination
1-12
dc.journal.pais
Países Bajos
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dc.description.fil
Fil: Alvarez, Roberto. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Ingeniería Agrícola y Uso de la Tierra. Cátedra de Fertilidad y Fertilizantes; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Geoderma Regional
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.geodrs.2023.e00626
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S2352009423000226
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