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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal; Embrapa Pecuária Sudeste. |
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Data corrente: |
15/01/2024 |
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Data da última atualização: |
15/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, P. P. A.; RODRIGUES, P. H. M.; PRAES, M. F. F. M.; PEDROSO, A. de F.; OLIVEIRA, B. A.; SPERANÇA, M. A.; BOSI, C.; FERNANDES, F. A. |
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Afiliação: |
PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; PAULO HENRIQUE MAZZA RODRIGUES, University of São Paulo; MARIA FERNANDA FERREIRA MENEGUCCI PRAES, University of São Paulo; ANDRE DE FARIA PEDROSO, CPPSE; BIA ANCHÃO OLIVEIRA, Massey University; MARCO AURÉLIO SPERANÇA, Universidade Estadual Paulista; CRISTIAM BOSI; FERNANDO ANTONIO FERNANDES, CPAP. |
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Título: |
Soil carbon dynamics in Brazilian Atlantic forest converted into pasture-based dairy production systems. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agronomy Journal, v. 113, n. 2, p. 1136–1149, 2021. |
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DOI: |
10.1002/agj2.20578 |
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Idioma: |
Inglês |
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Conteúdo: |
The conversion of Brazilian tropical forests into pastureland was a complex process, potentially harmful to the environment, heightened by degraded grazing systems that did not ensure sustainability and affected the ecosystem resilience. This study was conducted to determine the long-term changes in soil C stocks in native forest (FOR) converted to pasture-based dairy systems (continuous grazing system with low stocking rate–CLS; rotational grazing system with high stocking rate–RHS). Soil samples were analyzed for texture, C, organic matter (OM), bulk density (BD), C stock, and carbon accumulation rates (CAR) in 0-to-5-, 5-to-10-, 10-to-20-, 20-to-30-, 30-to-40-, 40-to-60-, 60-to-80-, and 80-to-100-cm depths in six trenches. Bulk density was higher in RHS compared with CLS and FOR in most of the soil layers. In the 0-to-5-cm layer, C and OM were greater in CLS. Carbon contents were similar in RHS and FOR, whereas OM was higher in FOR. Intensification increased BD, reduced OM, and did not affect C content in the 0-to-5 cm layer. For all treatments, C stock and CAR were higher in the 0-to-100 cm (136.73 Mg ha−1 and 0.4252 Mg ha−1 yr−1) than the 0-to-30 cm (61.79 Mg ha−1 and 0.0447 Mg ha−1 yr−1) layer. The soil C stock remained equal for both pastureland and presented a positive CAR in relation to the forest, working as C sinks. The RHS presented the greatest forage yield, carrying capacity and milk yield. This management resulted in a land-saving effect of 2.7 ha for each hectare of high intensified pasture. MenosThe conversion of Brazilian tropical forests into pastureland was a complex process, potentially harmful to the environment, heightened by degraded grazing systems that did not ensure sustainability and affected the ecosystem resilience. This study was conducted to determine the long-term changes in soil C stocks in native forest (FOR) converted to pasture-based dairy systems (continuous grazing system with low stocking rate–CLS; rotational grazing system with high stocking rate–RHS). Soil samples were analyzed for texture, C, organic matter (OM), bulk density (BD), C stock, and carbon accumulation rates (CAR) in 0-to-5-, 5-to-10-, 10-to-20-, 20-to-30-, 30-to-40-, 40-to-60-, 60-to-80-, and 80-to-100-cm depths in six trenches. Bulk density was higher in RHS compared with CLS and FOR in most of the soil layers. In the 0-to-5-cm layer, C and OM were greater in CLS. Carbon contents were similar in RHS and FOR, whereas OM was higher in FOR. Intensification increased BD, reduced OM, and did not affect C content in the 0-to-5 cm layer. For all treatments, C stock and CAR were higher in the 0-to-100 cm (136.73 Mg ha−1 and 0.4252 Mg ha−1 yr−1) than the 0-to-30 cm (61.79 Mg ha−1 and 0.0447 Mg ha−1 yr−1) layer. The soil C stock remained equal for both pastureland and presented a positive CAR in relation to the forest, working as C sinks. The RHS presented the greatest forage yield, carrying capacity and milk yield. This management resulted in a land-saving effect of 2.7 ha for each hec... Mostrar Tudo |
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Palavras-Chave: |
ABC; Brazil’s Low Carbon Agriculture Plan; C stock; Extensive pastures; Forest; Intensively managed pastures; Irrigated pastures; Managed pastures; Sustainable and resilient environments. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02550naa a2200325 a 4500
001 2160829
005 2024-01-15
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1002/agj2.20578$2DOI
100 1 $aOLIVEIRA, P. P. A.
245 $aSoil carbon dynamics in Brazilian Atlantic forest converted into pasture-based dairy production systems.$h[electronic resource]
260 $c2021
520 $aThe conversion of Brazilian tropical forests into pastureland was a complex process, potentially harmful to the environment, heightened by degraded grazing systems that did not ensure sustainability and affected the ecosystem resilience. This study was conducted to determine the long-term changes in soil C stocks in native forest (FOR) converted to pasture-based dairy systems (continuous grazing system with low stocking rate–CLS; rotational grazing system with high stocking rate–RHS). Soil samples were analyzed for texture, C, organic matter (OM), bulk density (BD), C stock, and carbon accumulation rates (CAR) in 0-to-5-, 5-to-10-, 10-to-20-, 20-to-30-, 30-to-40-, 40-to-60-, 60-to-80-, and 80-to-100-cm depths in six trenches. Bulk density was higher in RHS compared with CLS and FOR in most of the soil layers. In the 0-to-5-cm layer, C and OM were greater in CLS. Carbon contents were similar in RHS and FOR, whereas OM was higher in FOR. Intensification increased BD, reduced OM, and did not affect C content in the 0-to-5 cm layer. For all treatments, C stock and CAR were higher in the 0-to-100 cm (136.73 Mg ha−1 and 0.4252 Mg ha−1 yr−1) than the 0-to-30 cm (61.79 Mg ha−1 and 0.0447 Mg ha−1 yr−1) layer. The soil C stock remained equal for both pastureland and presented a positive CAR in relation to the forest, working as C sinks. The RHS presented the greatest forage yield, carrying capacity and milk yield. This management resulted in a land-saving effect of 2.7 ha for each hectare of high intensified pasture.
653 $aABC
653 $aBrazil’s Low Carbon Agriculture Plan
653 $aC stock
653 $aExtensive pastures
653 $aForest
653 $aIntensively managed pastures
653 $aIrrigated pastures
653 $aManaged pastures
653 $aSustainable and resilient environments
700 1 $aRODRIGUES, P. H. M.
700 1 $aPRAES, M. F. F. M.
700 1 $aPEDROSO, A. de F.
700 1 $aOLIVEIRA, B. A.
700 1 $aSPERANÇA, M. A.
700 1 $aBOSI, C.
700 1 $aFERNANDES, F. A.
773 $tAgronomy Journal$gv. 113, n. 2, p. 1136–1149, 2021.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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