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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação; Embrapa Pecuária Sudeste. |
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Data corrente: |
10/05/2019 |
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Data da última atualização: |
03/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SEGNINI, A.; XAVIER, A. A. P.; OTAVIANI-JUNIOR, P. L.; OLIVEIRA, P. P. A.; PEDROSO, A. de F.; PRAES, M. F. F. M.; RODRIGUES, P. H. M.; MILORI, D. M. B. P. |
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Afiliação: |
PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; ANDRE DE FARIA PEDROSO, CPPSE; MARIA FERNANDA FERREIRA MENEGUCCI PRAES, Universidade de São Paulo; PAULO HENRIQUE MAZZA RODRIGUES, Universidade de São Paulo; DEBORA MARCONDES BASTOS PEREIRA, CNPDIA. |
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Título: |
Soil carbon stock and humification in pastures under different levels of intensification in Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Scientia Agrícola, v. 76, n. 1, p. 33-40, 2019. |
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DOI: |
10.1590/1678-992X-2017-0131 |
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Idioma: |
Inglês |
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Conteúdo: |
Intensive management of tropical pastures has shown potential for greenhouse gas (GHG) mitigation due to high forage production and C accumulation in the soil. This study aimed to evaluate different pasture management options in relation to their effect on soil C stocks and soil organic matter (SOM) humification. Pastures in four beef cattle production systems were assessed: intensive and irrigated pasture with high stocking rate (IHS); dryland pasture with high stocking rate (DHS); dryland pasture with moderate stocking rate (DMS); degraded pasture (DP). The soil under the native forest was also evaluated and soil carbon stocks from the 0-100 and 0-30 cm layers were assessed. Carbon stocks (0-100 cm) ranged from 99.88 to 142.33 Mg ha−1 in DP and DMS, respectively and were, respectively, 14 % and 24 % higher compared to the soil under the forest and indicate the capacity of adequately managed tropical pastures to mitigate GHG emissions from livestock production. Humification indexes indicated the presence of more labile C in pastures with greater C accumulation (DHS and DMS), mainly in the upper soil layers, indicating recent C accumulation resulting from correct management. However, more labile C can be easily lost to the atmosphere as CO2, depending on pasture management. Low C stocks associated with high humification indexes are characteristics of DP in which significant amounts of SOM are lost. It is necessary to develop technologies to improve C sequestration in IHS and results indicate the importance of quantifying C stocks in association with C stability. MenosIntensive management of tropical pastures has shown potential for greenhouse gas (GHG) mitigation due to high forage production and C accumulation in the soil. This study aimed to evaluate different pasture management options in relation to their effect on soil C stocks and soil organic matter (SOM) humification. Pastures in four beef cattle production systems were assessed: intensive and irrigated pasture with high stocking rate (IHS); dryland pasture with high stocking rate (DHS); dryland pasture with moderate stocking rate (DMS); degraded pasture (DP). The soil under the native forest was also evaluated and soil carbon stocks from the 0-100 and 0-30 cm layers were assessed. Carbon stocks (0-100 cm) ranged from 99.88 to 142.33 Mg ha−1 in DP and DMS, respectively and were, respectively, 14 % and 24 % higher compared to the soil under the forest and indicate the capacity of adequately managed tropical pastures to mitigate GHG emissions from livestock production. Humification indexes indicated the presence of more labile C in pastures with greater C accumulation (DHS and DMS), mainly in the upper soil layers, indicating recent C accumulation resulting from correct management. However, more labile C can be easily lost to the atmosphere as CO2, depending on pasture management. Low C stocks associated with high humification indexes are characteristics of DP in which significant amounts of SOM are lost. It is necessary to develop technologies to improve C sequestration in IHS and... Mostrar Tudo |
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Palavras-Chave: |
Atlantic forest biome; Brazilian livestock systems; Humification index; ILPF; Laser-induced fluorescence spectroscopy. |
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Thesaurus Nal: |
Organic matter. |
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Categoria do assunto: |
--
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160406/1/SoilCarbonStock.pdf
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Marc: |
LEADER 02504naa a2200289 a 4500
001 2160406
005 2024-01-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-992X-2017-0131$2DOI
100 1 $aSEGNINI, A.
245 $aSoil carbon stock and humification in pastures under different levels of intensification in Brazil.$h[electronic resource]
260 $c2019
520 $aIntensive management of tropical pastures has shown potential for greenhouse gas (GHG) mitigation due to high forage production and C accumulation in the soil. This study aimed to evaluate different pasture management options in relation to their effect on soil C stocks and soil organic matter (SOM) humification. Pastures in four beef cattle production systems were assessed: intensive and irrigated pasture with high stocking rate (IHS); dryland pasture with high stocking rate (DHS); dryland pasture with moderate stocking rate (DMS); degraded pasture (DP). The soil under the native forest was also evaluated and soil carbon stocks from the 0-100 and 0-30 cm layers were assessed. Carbon stocks (0-100 cm) ranged from 99.88 to 142.33 Mg ha−1 in DP and DMS, respectively and were, respectively, 14 % and 24 % higher compared to the soil under the forest and indicate the capacity of adequately managed tropical pastures to mitigate GHG emissions from livestock production. Humification indexes indicated the presence of more labile C in pastures with greater C accumulation (DHS and DMS), mainly in the upper soil layers, indicating recent C accumulation resulting from correct management. However, more labile C can be easily lost to the atmosphere as CO2, depending on pasture management. Low C stocks associated with high humification indexes are characteristics of DP in which significant amounts of SOM are lost. It is necessary to develop technologies to improve C sequestration in IHS and results indicate the importance of quantifying C stocks in association with C stability.
650 $aOrganic matter
653 $aAtlantic forest biome
653 $aBrazilian livestock systems
653 $aHumification index
653 $aILPF
653 $aLaser-induced fluorescence spectroscopy
700 1 $aXAVIER, A. A. P.
700 1 $aOTAVIANI-JUNIOR, P. L.
700 1 $aOLIVEIRA, P. P. A.
700 1 $aPEDROSO, A. de F.
700 1 $aPRAES, M. F. F. M.
700 1 $aRODRIGUES, P. H. M.
700 1 $aMILORI, D. M. B. P.
773 $tScientia Agrícola$gv. 76, n. 1, p. 33-40, 2019.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
26/07/1996 |
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Data da última atualização: |
26/10/2023 |
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Autoria: |
REIS, G. G. dos. |
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Afiliação: |
GERALDO GONCALVES DOS REIS, CPATU. |
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Título: |
Análise de crescimento das plantas: mensuração do crescimento. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Belém, PA: EMBRAPA-CPATU, 1978. |
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Páginas: |
23 p. |
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Idioma: |
Português |
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Notas: |
Trabalho apresentado no Curso Multinacional de Capacitação de Sistemas Integrados de Produccion Agrícola para la Amazônia. Publicação não convencional. Mimeografado. |
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Palavras-Chave: |
Growth; Leaf; Parameter; Parametro; Plant. |
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Thesagro: |
Área Foliar; Crescimento; Planta. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/172072/1/FL00953-.pdf
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Marc: |
LEADER 00693nam a2200217 a 4500
001 1374936
005 2023-10-26
008 1978 bl uuuu u0uu1 u #d
100 1 $aREIS, G. G. dos
245 $aAnálise de crescimento das plantas$bmensuração do crescimento.
260 $aBelém, PA: EMBRAPA-CPATU$c1978
300 $a23 p.
500 $aTrabalho apresentado no Curso Multinacional de Capacitação de Sistemas Integrados de Produccion Agrícola para la Amazônia. Publicação não convencional. Mimeografado.
650 $aÁrea Foliar
650 $aCrescimento
650 $aPlanta
653 $aGrowth
653 $aLeaf
653 $aParameter
653 $aParametro
653 $aPlant
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Embrapa Amazônia Oriental (CPATU) |
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