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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
06/03/2017 |
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Data da última atualização: |
22/11/2017 |
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Autoria: |
ESTEVES, V. P. P.; ESTEVES, E. M. M.; BUNGENSTAB, D. J.; LOEBMANN, D. G. dos S. W.; VICTORIA, D. de C.; VICENTE, L. E.; ARAÚJO, O. Q. F.; MORGADO, C. R. V. |
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Afiliação: |
VICTOR PAULO PEÇANHA ESTEVES, UFRJ; ELISA MARIA MANO ESTEVES, UFRJ; DAVI JOSE BUNGENSTAB, CNPGC; DANIEL GOMES DOS SANTOS W LOEBMANN, CNPM; DANIEL DE CASTRO VICTORIA, CNPM; LUIZ EDUARDO VICENTE, CNPM; OFELIA DE QUIROZ FERNANDES DE ARAUJO, UFRJ; CLAUDIA DO ROSARIO VAZ MORGADO, UFRJ. |
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Título: |
Land use change (LUC) analysis and life cycle assessment (LCA) of Brazilian soybean biodiesel. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Clean Technologies and Environmental Policy, v. 18, n. 6, p. 1655-1673, 2016. |
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DOI: |
http://dx.doi.org/10.1007/s10098-016-1161-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Biodiesel is an alternative to tackle global warming, especially for reducing greenhouse gases (GHG) emissions when replacing fossil fuels. However, it can compete for land with food production. Brazil is a global player on soybeans farming and most of the biodiesel produced in the country comes from it. This work proposes a new approach to evaluate its impact, associating land use change (LUC) analysis with life cycle assessment (LCA) in a representative Brazilian soybeans farming zone. LUC assessment used Landsat satellite imagery analysis from the years 1993 and 2013, and intergovernmental panel on climate change (IPCC) guidelines to estimate GHG emissions. LCA was based on field data collection processed with SimaPro®. Results show that the increment on annual GHG emissions per hectare, derived from the apportioning total emissions for the period studied, was 50.16 kg CO2 eq ha?1 y?1. From this increment, 97.1 % come from LUC, being the largest share from converting pastures to soybeans farming (81.2 % of the total emissions). However, in the area, a large share of converted pastures are degraded, acting as source of emissions, not as sink as considered by IPCC. At the same time, practices like no-tillage make soybeans a carbon sink. Therefore, results could change if alternative approaches were to be adopted, being a challenge for future work. Therefore, when considering biodiesel from soybeans, a close regard to local land use dynamics is essential to evaluate impacts. Besides, promoting more efficient use of land already cleared with the goal to avoid deforestation can turn biodiesel into a sustainable renewable energy source. MenosAbstract: Biodiesel is an alternative to tackle global warming, especially for reducing greenhouse gases (GHG) emissions when replacing fossil fuels. However, it can compete for land with food production. Brazil is a global player on soybeans farming and most of the biodiesel produced in the country comes from it. This work proposes a new approach to evaluate its impact, associating land use change (LUC) analysis with life cycle assessment (LCA) in a representative Brazilian soybeans farming zone. LUC assessment used Landsat satellite imagery analysis from the years 1993 and 2013, and intergovernmental panel on climate change (IPCC) guidelines to estimate GHG emissions. LCA was based on field data collection processed with SimaPro®. Results show that the increment on annual GHG emissions per hectare, derived from the apportioning total emissions for the period studied, was 50.16 kg CO2 eq ha?1 y?1. From this increment, 97.1 % come from LUC, being the largest share from converting pastures to soybeans farming (81.2 % of the total emissions). However, in the area, a large share of converted pastures are degraded, acting as source of emissions, not as sink as considered by IPCC. At the same time, practices like no-tillage make soybeans a carbon sink. Therefore, results could change if alternative approaches were to be adopted, being a challenge for future work. Therefore, when considering biodiesel from soybeans, a close regard to local land use dynamics is essential to evaluat... Mostrar Tudo |
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Palavras-Chave: |
Aquecimento global; CO2 emissions; LCA; LUC; Mudanças climáticas. |
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Thesagro: |
Biocombustível; Efeito estufa; Soja; Uso da terra. |
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Thesaurus Nal: |
Biodiesel; Global warming; Greenhouse gas emissions; Soybeans. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02781naa a2200373 a 4500
001 2066230
005 2017-11-22
008 2016 bl --- 0-- u #d
024 7 $ahttp://dx.doi.org/10.1007/s10098-016-1161-8$2DOI
100 1 $aESTEVES, V. P. P.
245 $aLand use change (LUC) analysis and life cycle assessment (LCA) of Brazilian soybean biodiesel.$h[electronic resource]
260 $c2016
520 $aAbstract: Biodiesel is an alternative to tackle global warming, especially for reducing greenhouse gases (GHG) emissions when replacing fossil fuels. However, it can compete for land with food production. Brazil is a global player on soybeans farming and most of the biodiesel produced in the country comes from it. This work proposes a new approach to evaluate its impact, associating land use change (LUC) analysis with life cycle assessment (LCA) in a representative Brazilian soybeans farming zone. LUC assessment used Landsat satellite imagery analysis from the years 1993 and 2013, and intergovernmental panel on climate change (IPCC) guidelines to estimate GHG emissions. LCA was based on field data collection processed with SimaPro®. Results show that the increment on annual GHG emissions per hectare, derived from the apportioning total emissions for the period studied, was 50.16 kg CO2 eq ha?1 y?1. From this increment, 97.1 % come from LUC, being the largest share from converting pastures to soybeans farming (81.2 % of the total emissions). However, in the area, a large share of converted pastures are degraded, acting as source of emissions, not as sink as considered by IPCC. At the same time, practices like no-tillage make soybeans a carbon sink. Therefore, results could change if alternative approaches were to be adopted, being a challenge for future work. Therefore, when considering biodiesel from soybeans, a close regard to local land use dynamics is essential to evaluate impacts. Besides, promoting more efficient use of land already cleared with the goal to avoid deforestation can turn biodiesel into a sustainable renewable energy source.
650 $aBiodiesel
650 $aGlobal warming
650 $aGreenhouse gas emissions
650 $aSoybeans
650 $aBiocombustível
650 $aEfeito estufa
650 $aSoja
650 $aUso da terra
653 $aAquecimento global
653 $aCO2 emissions
653 $aLCA
653 $aLUC
653 $aMudanças climáticas
700 1 $aESTEVES, E. M. M.
700 1 $aBUNGENSTAB, D. J.
700 1 $aLOEBMANN, D. G. dos S. W.
700 1 $aVICTORIA, D. de C.
700 1 $aVICENTE, L. E.
700 1 $aARAÚJO, O. Q. F.
700 1 $aMORGADO, C. R. V.
773 $tClean Technologies and Environmental Policy$gv. 18, n. 6, p. 1655-1673, 2016.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
08/01/2021 |
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Data da última atualização: |
30/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
BARROS, J. R. A.; GUIMARÃES, M. J. M.; SILVA, R. M. e; RÊGO, M. T. C.; MELO, N. F. de; CHAVES, A. R. de M.; ANGELOTTI, F. |
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Afiliação: |
Juliane Rafaele Alves Barros, UEFS; Miguel Julio Machado Guimarães; Rodrigo Moura e Silva; Maydara Thaylla Cavalcanti Rêgo; NATONIEL FRANKLIN DE MELO, CPATSA; AGNALDO RODRIGUES DE MELO CHAVES, CPATSA; FRANCISLENE ANGELOTTI, CPATSA. |
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Título: |
Selection of cowpea cultivars for high temperature tolerance: physiological, biochemical and yield aspects. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Physiology and Molecular Biology of Plants, v. 27, n. 1, p. 29-38, 2021. |
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DOI: |
https://doi.org/10.1007/s12298-020-00919-7 |
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Idioma: |
Inglês |
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Conteúdo: |
High temperature stress can hinder the development of cowpea resulting in several damages including vegetative and reproductive phases of the crop. In this context, the objective of this study was to select cowpea cultivars tolerant to high temperature stress using various parameters related to physiological, biochemical, and yield aspects. For this, the cultivars Carijo´, Itaim, Pujante, Rouxinol, and Tapahium were used, maintained in two temperature regimes: 20?26?33 C and 24.8?30.8?37.8 C. The experiment was carried out in growth chambers, in a 5 9 2 factorial arrangement (cultivars 9 temperature regimes). Responses differentiated among the cultivars Carijo´, Itaim, Pujante, Rouxinol, and Tapahium with the increase of 4.8 C in air temperature. The high temperature promoted a greater quantity of aborted flowers, leading to a reduction in the yield of the cultivars Carijo´, Pujante, Rouxinol, and Tapahium. The photosynthesis, stomatal conductance, leaf transpiration and enzymatic activities were significantly influenced by high temperature. From the combination of the responses of biometric, physiological and productive variables, the cultivar Itaim can be considered as tolerant to an increase of 4.8 C in air temperature. |
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Palavras-Chave: |
Atividade fisiológica; Estresse oxidativo; Estresse térmico; Rendimento de grãos. |
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Thesagro: |
Feijão; Vigna Unguiculata. |
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Thesaurus NAL: |
Cowpeas. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02162naa a2200289 a 4500
001 2129112
005 2021-09-30
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s12298-020-00919-7$2DOI
100 1 $aBARROS, J. R. A.
245 $aSelection of cowpea cultivars for high temperature tolerance$bphysiological, biochemical and yield aspects.$h[electronic resource]
260 $c2021
520 $aHigh temperature stress can hinder the development of cowpea resulting in several damages including vegetative and reproductive phases of the crop. In this context, the objective of this study was to select cowpea cultivars tolerant to high temperature stress using various parameters related to physiological, biochemical, and yield aspects. For this, the cultivars Carijo´, Itaim, Pujante, Rouxinol, and Tapahium were used, maintained in two temperature regimes: 20?26?33 C and 24.8?30.8?37.8 C. The experiment was carried out in growth chambers, in a 5 9 2 factorial arrangement (cultivars 9 temperature regimes). Responses differentiated among the cultivars Carijo´, Itaim, Pujante, Rouxinol, and Tapahium with the increase of 4.8 C in air temperature. The high temperature promoted a greater quantity of aborted flowers, leading to a reduction in the yield of the cultivars Carijo´, Pujante, Rouxinol, and Tapahium. The photosynthesis, stomatal conductance, leaf transpiration and enzymatic activities were significantly influenced by high temperature. From the combination of the responses of biometric, physiological and productive variables, the cultivar Itaim can be considered as tolerant to an increase of 4.8 C in air temperature.
650 $aCowpeas
650 $aFeijão
650 $aVigna Unguiculata
653 $aAtividade fisiológica
653 $aEstresse oxidativo
653 $aEstresse térmico
653 $aRendimento de grãos
700 1 $aGUIMARÃES, M. J. M.
700 1 $aSILVA, R. M. e
700 1 $aRÊGO, M. T. C.
700 1 $aMELO, N. F. de
700 1 $aCHAVES, A. R. de M.
700 1 $aANGELOTTI, F.
773 $tPhysiology and Molecular Biology of Plants$gv. 27, n. 1, p. 29-38, 2021.
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