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| Registros recuperados : 140 | |
| Registros recuperados : 140 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
13/03/2024 |
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Data da última atualização: |
14/03/2024 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ANDRADE, C. A. de; TRETTEL, M.; GERDES, L; BARBOSA, C. M. P; RODRIGUES, P. H. M.; LIGO, M. A. V.; NOGUEIRA, S. F.; LIMA, M. A. de; CARVALHO, T. A.; BETTANIN, V. C.; SANTOS, J. de O.; VASO, L. M. |
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Afiliação: |
CRISTIANO ALBERTO DE ANDRADE, CNPMA; MURILO TRETTEL, FMV/USP; LUCIANO GERGES, FMV/USP; CRISTINA M. PACHECO BARBOSA, FMV/USP; PAULO H. MAZZA RODRIGUES, FMV/USP; MARCOS ANTONIO VIEIRA LIGO, EMBRAPA MEIO AMBIENTE; SANDRA FURLAN NOGUEIRA, CNPMA; MAGDA APARECIDA DE LIMA, CNPMA; TAÍS ALBES CARVALHO, BOLSISTA EMBRAPA MEIO AMBIENTE; VIVIANE CRISTINA BETTANIN, CNPMA; JULIANA DE OLIVEIRA SANTOS MARCATTO, CNPMA. |
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Título: |
Emission of greenhouse gases from soils under pastures submitted to diferent grazing managements and nitrogen fertilization rates, and intercropping with macrotyloma. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: SYMPOSIUM STRATEGIC PRACTICES FOR MITIGATING GREENHOUSE GAS EMISSION IN GRASSLAND. Proceedings... São Carlos: Embrapa Pecuária Sudeste, 2023. p. 28-30. |
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Páginas: |
p. 28-30 |
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Idioma: |
Português |
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Conteúdo: |
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. MenosIn 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, demo... Mostrar Tudo |
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Palavras-Chave: |
Gases de efeito estufa; Macrotyloma axillare; Óxido nitriso. |
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Thesaurus NAL: |
Emissions factor; Greenhouse gas emissions; Nitrous oxide; Urochloa brizantha. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1162777/1/AA-Andrade.pdf
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Marc: |
LEADER 03178nam a2200337 a 4500
001 2162777
005 2024-03-14
008 2023 bl uuuu u00u1 u #d
100 1 $aANDRADE, C. A. de
245 $aEmission of greenhouse gases from soils under pastures submitted to diferent grazing managements and nitrogen fertilization rates, and intercropping with macrotyloma.$h[electronic resource]
260 $aIn: SYMPOSIUM STRATEGIC PRACTICES FOR MITIGATING GREENHOUSE GAS EMISSION IN GRASSLAND. Proceedings... São Carlos: Embrapa Pecuária Sudeste, 2023. p. 28-30.$c2023
300 $ap. 28-30
520 $aIn 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.
650 $aEmissions factor
650 $aGreenhouse gas emissions
650 $aNitrous oxide
650 $aUrochloa brizantha
653 $aGases de efeito estufa
653 $aMacrotyloma axillare
653 $aÓxido nitriso
700 1 $aTRETTEL, M.
700 1 $aGERDES, L
700 1 $aBARBOSA, C. M. P
700 1 $aRODRIGUES, P. H. M.
700 1 $aLIGO, M. A. V.
700 1 $aNOGUEIRA, S. F.
700 1 $aLIMA, M. A. de
700 1 $aCARVALHO, T. A.
700 1 $aBETTANIN, V. C.
700 1 $aSANTOS, J. de O.
700 1 $aVASO, L. M.
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Embrapa Meio Ambiente (CNPMA) |
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