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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Gado de Leite; Embrapa Milho e Sorgo. |
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Data corrente: |
25/11/2020 |
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Data da última atualização: |
08/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MACIEL, I. C. F.; BARBOSA, F. A.; ALVES, B. J. R.; ALVARENGA, R. C.; TOMICH, T. R.; CAMPANHA, M. M.; ROWNTREE, J. E.; ALVES, F. C.; LANA, A. M. Q. |
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Afiliação: |
Isabella C. F. Maciel, Universidade Federal de Minas Gerais; Fabiano A. Barbosa, De Heus Animal Nutrition; BRUNO JOSE RODRIGUES ALVES, CNPAB; RAMON COSTA ALVARENGA, CNPMS; THIERRY RIBEIRO TOMICH, CNPGL; MONICA MATOSO CAMPANHA, CNPMS; Jason E. Rowntree, Michigan State Universit; Filipe C. Alves, Michigan State University; Angela M. Q. Lana, Universidade Federal de Minas Gerais. |
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Título: |
Nitrous oxide and methane emissions from beef cattle excreta deposited on feedlot pen surface in tropical conditions. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agricultural Systems, v. 187, 102995, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
As feedlot beef production systems are expanding into tropical climates, considerably less is known on their environmental impact specific to these regions. Our objective was to investigate the dynamics of nitrous oxide (N2O) and methane (CH4) fluxes in a feedlot system representative of Brazil, in order to aggregate new emission data for the characterization of intensive cattle raising in tropical regions. Excreta was obtained from Nellore steers in a feedlot (n = 25, BW = 393 ± 31 kg). Urine (1.3 L) and feces (1.3 kg) were applied separately in plots on an open-lot feedlot pen surface at the beginning of the trial and fluxes were monitored 92 d with static chambers. Although CH4 fluxes were variable, all treatments were a sink for CH4 as the average of the monitoring period (? 8.9, ? 3.1, and ? 15.4 ?g C m? 2 h? 1 for feces, urine, and control, respectively). The N2O fluxes were higher in the urine affected area, which was related to the higher soil moisture and mineral N availability in comparison to the area with feces. The occurrence of rainfall from 67 to 70 DAA was determinant of very high N2O fluxes either for urine or feces. Hence, GHG emissions from individual excreta were characterized by a period of small but significant fluxes, followed by a period of indistinguishable fluxes at the background level. A third period after rainfall portrayed the large impact of excreta on GHG emissions from the feedlot. The direct N2O emission factor (EF) for the N in urine was significantly higher than for the N in feces (2.83 vs. 0.32%, respectively, P < 0.0001), and combining both resulted in an EF for the N in excreta of 1.83%, which is 8.5% less than IPCC default EF for dry lot systems. From the calculated direct emissions of N2O, gas monitoring of urine and feces in separate should be also considered for the development of emission factors for inventory purposes in tropical environments. For the regions where feedlots are used in the dry season for finishing cattle, cleaning pens regularly can contribute substantially to mitigate N2O emissions as suggested by the results of the present study. MenosAs feedlot beef production systems are expanding into tropical climates, considerably less is known on their environmental impact specific to these regions. Our objective was to investigate the dynamics of nitrous oxide (N2O) and methane (CH4) fluxes in a feedlot system representative of Brazil, in order to aggregate new emission data for the characterization of intensive cattle raising in tropical regions. Excreta was obtained from Nellore steers in a feedlot (n = 25, BW = 393 ± 31 kg). Urine (1.3 L) and feces (1.3 kg) were applied separately in plots on an open-lot feedlot pen surface at the beginning of the trial and fluxes were monitored 92 d with static chambers. Although CH4 fluxes were variable, all treatments were a sink for CH4 as the average of the monitoring period (? 8.9, ? 3.1, and ? 15.4 ?g C m? 2 h? 1 for feces, urine, and control, respectively). The N2O fluxes were higher in the urine affected area, which was related to the higher soil moisture and mineral N availability in comparison to the area with feces. The occurrence of rainfall from 67 to 70 DAA was determinant of very high N2O fluxes either for urine or feces. Hence, GHG emissions from individual excreta were characterized by a period of small but significant fluxes, followed by a period of indistinguishable fluxes at the background level. A third period after rainfall portrayed the large impact of excreta on GHG emissions from the feedlot. The direct N2O emission factor (EF) for the N in urine was si... Mostrar Tudo |
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Palavras-Chave: |
Emissão de CH4; Emissão de GEE; Excreta bovina; Fator de emissão de N2O; Óxido nitroso. |
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Thesagro: |
Bovino; Excremento; Metano. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 03032naa a2200313 a 4500
001 2127113
005 2021-01-08
008 2021 bl uuuu u00u1 u #d
100 1 $aMACIEL, I. C. F.
245 $aNitrous oxide and methane emissions from beef cattle excreta deposited on feedlot pen surface in tropical conditions.$h[electronic resource]
260 $c2021
520 $aAs feedlot beef production systems are expanding into tropical climates, considerably less is known on their environmental impact specific to these regions. Our objective was to investigate the dynamics of nitrous oxide (N2O) and methane (CH4) fluxes in a feedlot system representative of Brazil, in order to aggregate new emission data for the characterization of intensive cattle raising in tropical regions. Excreta was obtained from Nellore steers in a feedlot (n = 25, BW = 393 ± 31 kg). Urine (1.3 L) and feces (1.3 kg) were applied separately in plots on an open-lot feedlot pen surface at the beginning of the trial and fluxes were monitored 92 d with static chambers. Although CH4 fluxes were variable, all treatments were a sink for CH4 as the average of the monitoring period (? 8.9, ? 3.1, and ? 15.4 ?g C m? 2 h? 1 for feces, urine, and control, respectively). The N2O fluxes were higher in the urine affected area, which was related to the higher soil moisture and mineral N availability in comparison to the area with feces. The occurrence of rainfall from 67 to 70 DAA was determinant of very high N2O fluxes either for urine or feces. Hence, GHG emissions from individual excreta were characterized by a period of small but significant fluxes, followed by a period of indistinguishable fluxes at the background level. A third period after rainfall portrayed the large impact of excreta on GHG emissions from the feedlot. The direct N2O emission factor (EF) for the N in urine was significantly higher than for the N in feces (2.83 vs. 0.32%, respectively, P < 0.0001), and combining both resulted in an EF for the N in excreta of 1.83%, which is 8.5% less than IPCC default EF for dry lot systems. From the calculated direct emissions of N2O, gas monitoring of urine and feces in separate should be also considered for the development of emission factors for inventory purposes in tropical environments. For the regions where feedlots are used in the dry season for finishing cattle, cleaning pens regularly can contribute substantially to mitigate N2O emissions as suggested by the results of the present study.
650 $aBovino
650 $aExcremento
650 $aMetano
653 $aEmissão de CH4
653 $aEmissão de GEE
653 $aExcreta bovina
653 $aFator de emissão de N2O
653 $aÓxido nitroso
700 1 $aBARBOSA, F. A.
700 1 $aALVES, B. J. R.
700 1 $aALVARENGA, R. C.
700 1 $aTOMICH, T. R.
700 1 $aCAMPANHA, M. M.
700 1 $aROWNTREE, J. E.
700 1 $aALVES, F. C.
700 1 $aLANA, A. M. Q.
773 $tAgricultural Systems$gv. 187, 102995, 2021.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Biblioteca |
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| Registros recuperados : 111 | |
| 61. |  | GUIEIRO, C. dos S. M.; CAMILO, B. G.; CAMPANHA, M. M.; GONTIJO NETO, M. M.; OLIVEIRA-PAIVA, C. A.; MARRIEL, I. E. Enzyme activity of acid and alkaline phosphatase in the cerrado soil under maize cultivation in two management systems. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 28., 2015, Florianópolis. Resumos. Florianópolis: Sociedade Brasileira de Microbiologia, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 65. | | CAMPANHA, M. M.; CRUZ, J. C.; RESENDE, A. V. de; COELHO, A. M.; KARAM, D.; SILVA, G. H. da; PEREIRA FILHO, I. A.; CRUZ, I.; MARRIEL, I. E.; GARCIA, J. C.; VIANA, J. H. M.; QUEIROZ, L. R.; COTA, L. V.; PIMENTEL, M. A. G.; GONTIJO NETO, M. M.; VIANA, P. A.; ALBUQUERQUE, P. E. P. de; COSTA, R. V. da; MENDES, S. M.; QUEIROZ, V. A. V. Validação do sistema de produção integrada do milho. Sete Lagoas: Embrapa Milho e Sorgo, 2013. 13 p. (Embrapa Milho e Sorgo. Circular Técnica, 188).| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 66. | | BEZERRA, K. R. A.; CAMPANHA, M. M.; MERA, R. D. M.; BEZERRA, F. G. S.; MAYORGA, M. I. de O.; GUIMARÃES, V. P. Valoração econômica dos serviços ambientais em um sistema agrossilvipastoril no bioma caatinga. In: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 7., 2011, Fortaleza. Ética na ciência: agroecologia como paradigma para o desenvolvimento rural. Fortaleza: Universidade Federal do Ceará, 2011.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos; Embrapa Milho e Sorgo. |
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| 68. | | GONTIJO NETO, M. M.; VIANA, M. C. M.; ALVARENGA, R. C.; SANTOS, E. A. dos; SIMÃO, E. de P.; CAMPANHA, M. M. Sistemas de integração lavoura-pecuária-floresta em Minas Gerais. Boletim de Indústria Animal, Nova Odessa, v. 71, n. 2, p. 183-191, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 70. | | CAMPANHA, M. M.; FIDALGO, E. C. C.; AQUINO, F. de G.; FERREIRA, F. N.; BERGIER, I.; FERREIRA, J. N.; PARRON, L. M.; PRADO, R. B.; TONUCCI, R. G. Serviços ambientais e a agropecuária. Sete Lagoas: Embrapa Milho e Sorgo, 2019. 10 p. Cartilha.| Tipo: Folder/Folheto/Cartilha |
| Biblioteca(s): Embrapa Florestas; Embrapa Milho e Sorgo; Embrapa Pantanal; Embrapa Solos. |
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| 72. | | FIDALGO, E. C. C.; SCHULER, A. E.; TURETTA, A. P. D.; PEDREIRA, B. da C. C. G.; VEZZANI, F. M.; HISSA, H. R.; FERREIRA, J. N.; MONTEIRO, J. M. G.; GARCIA, J. R.; MENDONÇA, M. M. de; UZEDA, M. C.; IKEMOTO, S. M.; CAMPANHA, M. M.; PRADO, R. B. Serviços ecossistêmicos no contexto da produção e consumo sustentáveis. In: TORRES, L. A.; CAMPOS, S. K. (ed.). Megatendências da Ciência do Solo 2030. Brasília, DF: Embrapa, 2022. E-book. cap. 7.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agrobiologia; Embrapa Amazônia Oriental; Embrapa Milho e Sorgo; Embrapa Solos. |
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| 73. | | PARRON, L. M.; GARCIA, J. R.; CAMPANHA, M. M.; MAIA, C. M. B. de F.; QUEIROZ, D. L. de; PEIXOTO, R. T. dos G.; FRITZSONS, E.; WREGE, M. S. Serviços ecossistêmicos e eucalipto. In: OLIVEIRA, E. B. de; PINTO JUNIOR, J. E. (Ed.). O eucalipto e a Embrapa: quatro décadas de pesquisa e desenvolvimento. Brasília, DF: Embrapa, 2021. cap. 14. p. 611-666. Incluí apêndices.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Florestas; Embrapa Milho e Sorgo; Embrapa Solos. |
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| 75. | | SILVA FIALHO, J.; AGUIAR, M. I. de; MAIA, L. dos S.; MAGALHÃES, R. B.; ARAÚJO, F. da C. S. de; CAMPANHA, M. M.; OLIVEIRA, T. S. de. Soil quality, resistance and resilience in traditional agricultural and agroforestry ecosystems in Brazil's semiarid region. African Journal of Agricultural Research, v. 8, n. 40, p. 5020-5031, Oct. 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 76. | | PRADO, R. B.; PARRON, L. M.; CAMPANHA, M. M.; SILVA, M. S. L. da; MATTHIENSEN, A.; LIMA, J. E. F. W. SDG 6 and its relationship with the world, Brazil and Embrapa. In: SILVA, M. S. L. da; MATTHIENSEN, A.; BRITO, L. T. de L.; LIMA, J. E. F. W.; CARVALHO, C. J. R. de (ed.). Clean water and sanitation: contributions of Embrapa. Brasília, DF: Embrapa, 2020. cap. 1, p. 15-21. (Sustainable development goal, 6).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Florestas; Embrapa Milho e Sorgo; Embrapa Solos; Embrapa Suínos e Aves. |
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| 78. | | MAY, A.; CAMPANHA, M. M.; SILVA, A. F. da; COELHO, M. A. de O.; PARRELLA, R. A. da C.; SCHAFFERT, R. E.; PEREIRA FILHO, I. A. Variedades de sorgo sacarino em diferentes espaçamentos e população de plantas. Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 11, n. 3, p. 278-290, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 111 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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