Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management.
Abstract: In Brazil, agriculture contributes to the emission of greenhouse gases, but has great power to sequester carbon (C) in the soil. The objective of this research was to quantify the C stock in the soil due to land use change (LUC) from forest (Atlantic Forest biome) to Urochloa brizantha pasture, obtaining LUC factors; as well as determining C sequestration rates resultant of the adoption of better pasture management practices. The soil C stocks with the change of land use from forest to pasture was investigated in two locations, one with Dystrophic Red Oxisol and Dystrophic Red Argisol, and the other with Dark Red Oxisol, in the cities of Nova Odessa and Pirassununga, both in the State of São Paulo. Soil C stocks were obtained from soil sampling in pits with an auger, in different layers, down to 100 cm deep. The LUC factor was calculated from the ratio between the C stock in the forest soil and the C stock in the soil under pasture, for each location and soil type. The intensification of pasture management was studied in Pirassununga, resultant ofnitrogen fertilization and deferred or rotated grazing, while in Nova Odessa nitrogen fertilization and intercropping between U. brizantha and Macrotyloma axillare were tested. Soil sampling to obtain initial C stocks and after two years of implementing the new management was carried out in a similar way to that mentioned for LUC, but only considering the soil downto 30 cm deep. The factors for LUC varied between 0.76 and 0.98, demonstrating that inadequate management can affect the C stock in the soil in relation to the forest (standard IPCC value of 1), but that these factors increased when an appropriate management was applied, varying between 1.04 and 1.18, when compared to the IPCC factor standard value of 1.17. Furthermore, management practices resulted in C sequestration rates ranging between 1.2 and 4.4 t C ha-1 year-1, relatively high values that demonstrate the high potential of soils under pasture for C sequestration.
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2024-03-13
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Subjects: | Mata Atlântica, Fertilização do solo, Cultivo consorciado, Gramínea e leguminosa, Floresta, Mudança Climática, Matéria Orgânica, Greenhouse gas emissions, Climate change, Organic matter, Intercropping, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1162780 |
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dig-alice-doc-11627802024-03-13T14:32:57Z Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. CARVALHO, T. A. de LIGO, M. A. V BARBOSA, C. M. P FILIZOLA, H. F. PERNA JÚNIOR, F. RODRIGUES, P. H. M. ANDRADE, C. A. de TAÍS ALVES DE CARVALHO, Bolsista Embrapa Meio Ambiente MARCOS ANTONIO VIEIRA LIGO, EMBRAPA MEIO AMBIENTE CRISTINA M PACHECO, FMV/USP HELOISA FERREIRA FILIZOLA, CNPMA FLÁVIO PERNA JÚNIOR, FMV/USP PAULO H. MASSA RODRIGUES, FMV/USP CRISTIANO ALBERTO DE ANDRADE, CNPMA. Mata Atlântica Fertilização do solo Cultivo consorciado Gramínea e leguminosa Floresta Mudança Climática Matéria Orgânica Greenhouse gas emissions Climate change Organic matter Intercropping Abstract: In Brazil, agriculture contributes to the emission of greenhouse gases, but has great power to sequester carbon (C) in the soil. The objective of this research was to quantify the C stock in the soil due to land use change (LUC) from forest (Atlantic Forest biome) to Urochloa brizantha pasture, obtaining LUC factors; as well as determining C sequestration rates resultant of the adoption of better pasture management practices. The soil C stocks with the change of land use from forest to pasture was investigated in two locations, one with Dystrophic Red Oxisol and Dystrophic Red Argisol, and the other with Dark Red Oxisol, in the cities of Nova Odessa and Pirassununga, both in the State of São Paulo. Soil C stocks were obtained from soil sampling in pits with an auger, in different layers, down to 100 cm deep. The LUC factor was calculated from the ratio between the C stock in the forest soil and the C stock in the soil under pasture, for each location and soil type. The intensification of pasture management was studied in Pirassununga, resultant ofnitrogen fertilization and deferred or rotated grazing, while in Nova Odessa nitrogen fertilization and intercropping between U. brizantha and Macrotyloma axillare were tested. Soil sampling to obtain initial C stocks and after two years of implementing the new management was carried out in a similar way to that mentioned for LUC, but only considering the soil downto 30 cm deep. The factors for LUC varied between 0.76 and 0.98, demonstrating that inadequate management can affect the C stock in the soil in relation to the forest (standard IPCC value of 1), but that these factors increased when an appropriate management was applied, varying between 1.04 and 1.18, when compared to the IPCC factor standard value of 1.17. Furthermore, management practices resulted in C sequestration rates ranging between 1.2 and 4.4 t C ha-1 year-1, relatively high values that demonstrate the high potential of soils under pasture for C sequestration. 2024-03-13T14:32:57Z 2024-03-13T14:32:57Z 2024-03-13 2023 Artigo em anais e proceedings In: SYMPOSIUM STRATEGIC PRACTICES FOR MITIGATING GREENHOUSE GAS EMISSION IN GRASSLAND. Proceedings... São Carlos: Embrapa Pecuária Sudeste, 2023. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1162780 por openAccess p. 31-34. |
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Mata Atlântica Fertilização do solo Cultivo consorciado Gramínea e leguminosa Floresta Mudança Climática Matéria Orgânica Greenhouse gas emissions Climate change Organic matter Intercropping Mata Atlântica Fertilização do solo Cultivo consorciado Gramínea e leguminosa Floresta Mudança Climática Matéria Orgânica Greenhouse gas emissions Climate change Organic matter Intercropping |
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Mata Atlântica Fertilização do solo Cultivo consorciado Gramínea e leguminosa Floresta Mudança Climática Matéria Orgânica Greenhouse gas emissions Climate change Organic matter Intercropping Mata Atlântica Fertilização do solo Cultivo consorciado Gramínea e leguminosa Floresta Mudança Climática Matéria Orgânica Greenhouse gas emissions Climate change Organic matter Intercropping CARVALHO, T. A. de LIGO, M. A. V BARBOSA, C. M. P FILIZOLA, H. F. PERNA JÚNIOR, F. RODRIGUES, P. H. M. ANDRADE, C. A. de Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. |
description |
Abstract: In Brazil, agriculture contributes to the emission of greenhouse gases, but has great power to sequester carbon (C) in the soil. The objective of this research was to quantify the C stock in the soil due to land use change (LUC) from forest (Atlantic Forest biome) to Urochloa brizantha pasture, obtaining LUC factors; as well as determining C sequestration rates resultant of the adoption of better pasture management practices. The soil C stocks with the change of land use from forest to pasture was investigated in two locations, one with Dystrophic Red Oxisol and Dystrophic Red Argisol, and the other with Dark Red Oxisol, in the cities of Nova Odessa and Pirassununga, both in the State of São Paulo. Soil C stocks were obtained from soil sampling in pits with an auger, in different layers, down to 100 cm deep. The LUC factor was calculated from the ratio between the C stock in the forest soil and the C stock in the soil under pasture, for each location and soil type. The intensification of pasture management was studied in Pirassununga, resultant ofnitrogen fertilization and deferred or rotated grazing, while in Nova Odessa nitrogen fertilization and intercropping between U. brizantha and Macrotyloma axillare were tested. Soil sampling to obtain initial C stocks and after two years of implementing the new management was carried out in a similar way to that mentioned for LUC, but only considering the soil downto 30 cm deep. The factors for LUC varied between 0.76 and 0.98, demonstrating that inadequate management can affect the C stock in the soil in relation to the forest (standard IPCC value of 1), but that these factors increased when an appropriate management was applied, varying between 1.04 and 1.18, when compared to the IPCC factor standard value of 1.17. Furthermore, management practices resulted in C sequestration rates ranging between 1.2 and 4.4 t C ha-1 year-1, relatively high values that demonstrate the high potential of soils under pasture for C sequestration. |
author2 |
TAÍS ALVES DE CARVALHO, Bolsista Embrapa Meio Ambiente |
author_facet |
TAÍS ALVES DE CARVALHO, Bolsista Embrapa Meio Ambiente CARVALHO, T. A. de LIGO, M. A. V BARBOSA, C. M. P FILIZOLA, H. F. PERNA JÚNIOR, F. RODRIGUES, P. H. M. ANDRADE, C. A. de |
format |
Artigo em anais e proceedings |
topic_facet |
Mata Atlântica Fertilização do solo Cultivo consorciado Gramínea e leguminosa Floresta Mudança Climática Matéria Orgânica Greenhouse gas emissions Climate change Organic matter Intercropping |
author |
CARVALHO, T. A. de LIGO, M. A. V BARBOSA, C. M. P FILIZOLA, H. F. PERNA JÚNIOR, F. RODRIGUES, P. H. M. ANDRADE, C. A. de |
author_sort |
CARVALHO, T. A. de |
title |
Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. |
title_short |
Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. |
title_full |
Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. |
title_fullStr |
Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. |
title_full_unstemmed |
Carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. |
title_sort |
carbon in pasture soil: stock change factor for the land-use and carbon sequestration rate due to the adoption of better management. |
publishDate |
2024-03-13 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1162780 |
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