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| 3. |  | SOUZA, E. R. de; FREIRE, M. B. G. dos S.; NASCIMENTO, C. W. A. do; MONTENEGRO, A. A. de A.; FREIRE, F. J.; MELO, H. F. de. Fitoextração de sais pela Atriplex nummularia lindl. sob estresse hídrico em solo salino sódico. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 15, n. 5, p. 477-483, maio, 2011.| Biblioteca(s): Embrapa Algodão. |
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| 4. | | MAGALHAES, P. C.; LAVINSKY, A. O.; MELO, H. F.; ALVES, J. C.; SOUZA, T. C. de; BARBOSA, A. P.; RIBEIRO, C. Relationship between nitric oxide, enzymatic antioxidant system and ABA in maize under long-term drought. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 14, n. 2, p. 155-166, 2015.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 5. | | ALVES, A. C.; SOUZA, E. R. de; MELO, H. F. de; PINTO, J. G. O; REGO JUNIOR, F. E. de A.; SOUZA JÚNIOR, V. S. de; MARQUES, F. A.; SANTOS, M. A. do; SCHAFFER, B.; GHEYI, H. R. Comparison of solution extraction methods for estimating electrical conductivity in soils with contrasting mineralogical assemblages and textures. Catena, v. 218, 106581, Nov. 2022.| Biblioteca(s): Embrapa Solos. |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
19/12/2018 |
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Data da última atualização: |
19/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
ESTEVES, E. M. M.; ESTEVES, V. P. P.; BUNGENSTAB, D. J.; ARAÚJO, O. de Q. F.; MORGADO, C. do R. V. |
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Afiliação: |
Elisa Maria Mano Esteves, Environmental Engineering Program - PEA/Federal University of Rio de Janeiro - UFRJ; Victor Paulo Peçanha Esteves, Program in Chemical and Biochemical Process Technology - TPQB/Federal University of Rio de Janeiro - UFRJ; DAVI JOSE BUNGENSTAB, CNPGC; Ofélia de Queiroz Fernandes Araújo, Program in Chemical and Biochemical Process Technology - TPQB/Federal University of Rio de Janeiro - UFRJ; Claudia do Rosário Vaz Morgado, Environmental Engineering Program - PEA/Federal University of Rio de Janeiro - UFRJ. |
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Título: |
Greenhouse gas emissions related to biodiesel from traditional soybean farming compared to integrated crop-livestock systems |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Cleaner Production, v. 179, p. 81-92, 2018 |
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Idioma: |
Inglês |
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Conteúdo: |
Biodiesel has great potential to reduce greenhouse gas emissions, as an alternative to fossil diesel. However, its production occurs under different agricultural systems, with different levels of emissions in the farming phase. Integrated crop-livestock systems can play an important role in this sense, since they combine livestock with crop farming, optimizing land and input usage, with good potential to reduce total emissions from energy and food agriculture. This study compares integrated crop-livestock systems with traditional soybean farming systems regarding biodiesel production, through life-cycle assessment. Additionally, it compares different integrated crop-livestock systems in Central Brazil, to evaluate their impact regarding greenhouse gas emissions. The life cycle assessment performed adopts two approaches to apportion the farming phase emissions (sub-process division and system expansion), as well as two functional units (emissions per hectare and per kilogram of biodiesel). The system expansion approach appears to be the most suitable because the studied agropastoral systems have strong reciprocal relationship and exchange of benefits among the different farming activities. This approach also considers co-products as avoided products, showing that the whole integrated system is environmentally more attractive due to negative emissions. When analyzing only biodiesel production, results show no substantial difference between traditional and integrated systems. Therefore, the factors with the greatest impact on biodiesel production, concerning GHG emissions, are the frequency of rotation (pasture/crop) and type of management in the agricultural system. MenosBiodiesel has great potential to reduce greenhouse gas emissions, as an alternative to fossil diesel. However, its production occurs under different agricultural systems, with different levels of emissions in the farming phase. Integrated crop-livestock systems can play an important role in this sense, since they combine livestock with crop farming, optimizing land and input usage, with good potential to reduce total emissions from energy and food agriculture. This study compares integrated crop-livestock systems with traditional soybean farming systems regarding biodiesel production, through life-cycle assessment. Additionally, it compares different integrated crop-livestock systems in Central Brazil, to evaluate their impact regarding greenhouse gas emissions. The life cycle assessment performed adopts two approaches to apportion the farming phase emissions (sub-process division and system expansion), as well as two functional units (emissions per hectare and per kilogram of biodiesel). The system expansion approach appears to be the most suitable because the studied agropastoral systems have strong reciprocal relationship and exchange of benefits among the different farming activities. This approach also considers co-products as avoided products, showing that the whole integrated system is environmentally more attractive due to negative emissions. When analyzing only biodiesel production, results show no substantial difference between traditional and integrated systems. T... Mostrar Tudo |
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Palavras-Chave: |
Integrated crop-livestock system. |
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Thesaurus NAL: |
Biodiesel; Greenhouse gases; Life cycle assessment; Soybeans. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/188967/1/Greenhouse-gas-emissions.pdf
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Marc: |
LEADER 02433naa a2200229 a 4500
001 2102081
005 2018-12-19
008 2018 bl uuuu u00u1 u #d
100 1 $aESTEVES, E. M. M.
245 $aGreenhouse gas emissions related to biodiesel from traditional soybean farming compared to integrated crop-livestock systems$h[electronic resource]
260 $c2018
520 $aBiodiesel has great potential to reduce greenhouse gas emissions, as an alternative to fossil diesel. However, its production occurs under different agricultural systems, with different levels of emissions in the farming phase. Integrated crop-livestock systems can play an important role in this sense, since they combine livestock with crop farming, optimizing land and input usage, with good potential to reduce total emissions from energy and food agriculture. This study compares integrated crop-livestock systems with traditional soybean farming systems regarding biodiesel production, through life-cycle assessment. Additionally, it compares different integrated crop-livestock systems in Central Brazil, to evaluate their impact regarding greenhouse gas emissions. The life cycle assessment performed adopts two approaches to apportion the farming phase emissions (sub-process division and system expansion), as well as two functional units (emissions per hectare and per kilogram of biodiesel). The system expansion approach appears to be the most suitable because the studied agropastoral systems have strong reciprocal relationship and exchange of benefits among the different farming activities. This approach also considers co-products as avoided products, showing that the whole integrated system is environmentally more attractive due to negative emissions. When analyzing only biodiesel production, results show no substantial difference between traditional and integrated systems. Therefore, the factors with the greatest impact on biodiesel production, concerning GHG emissions, are the frequency of rotation (pasture/crop) and type of management in the agricultural system.
650 $aBiodiesel
650 $aGreenhouse gases
650 $aLife cycle assessment
650 $aSoybeans
653 $aIntegrated crop-livestock system
700 1 $aESTEVES, V. P. P.
700 1 $aBUNGENSTAB, D. J.
700 1 $aARAÚJO, O. de Q. F.
700 1 $aMORGADO, C. do R. V.
773 $tJournal of Cleaner Production$gv. 179, p. 81-92, 2018
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Embrapa Gado de Corte (CNPGC) |
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