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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Arroz e Feijão. |
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Data corrente: |
24/07/2014 |
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Data da última atualização: |
26/08/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LESSA, A. C. R.; MADARI, B. E.; PAREDES, D. S.; BODDEY, R. M.; URQUIAGA, S.; JANTALIA, C. P.; ALVES, B. J. R. |
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Afiliação: |
ANA CAROLINA DA ROCHA LESSA, UFRRJ; BEATA EMOKE MADARI, CNPAF; DEBORA S. PAREDES, UFRRJ; ROBERT MICHAEL BODDEY, CNPAB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; CLAUDIA POZZI JANTALIA, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB. |
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Título: |
Bovine urine and dung deposited on Brazilian savannah pastures contribute differently to direct and indirect soil nitrous oxide emissions. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, Amsterdam, v. 190, p. 104-111, June 2014. |
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ISSN: |
0167-8809 |
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DOI: |
http://dx.doi.org/10.1016/j.agee.2014.01.010 |
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Idioma: |
Inglês |
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Conteúdo: |
Cattle ranching is one of the most important agricultural activities in Brazil. The impact of livestock onsoil N2O emissions in Brazil has only been assessed using a Tier 1 approach of the IPCC guidelines, as thereare no data available from field studies. Apart from the need for accumulating data for the developmentof proper direct N2O emission factors, we tested for possible differences between urine and dung as N2Osources and the difference in emissions between the dry and wet season. An area of Brachiaria brizantha atthe Embrapa Rice and Bean Centre in the Cerrado (central savannah) region (Goiás state) was subdividedinto plots where fresh cattle urine and dung were monitored for three consecutive periods (two in therainy and one in the dry season) for N losses, principally N2O emissions and NH3volatilization.15N-labelled urine N was used in the first monitoring period for an N balance study which indicated thatdenitrification and NH3volatilization were the most important processes for N loss. Percentages of N lostas N2O and as volatilized NH3were greater for urine than for dung. In addition, N losses as N2O in therainy season were much greater than during the dry season. Representing the Cerrado region and theextensive pasture systems common in this region, direct emission 0.007 g N2O?N g−1(0.7%) excreta N,well below the EF3PRPof 0.020 g N g−1(2%) used by IPCC for cattle N in excreta. The fraction of excreta Nlost as NH3of ∼15% was in line with the IPCC guidelines. Disaggregation of emission factors for excretatype is recommended. MenosCattle ranching is one of the most important agricultural activities in Brazil. The impact of livestock onsoil N2O emissions in Brazil has only been assessed using a Tier 1 approach of the IPCC guidelines, as thereare no data available from field studies. Apart from the need for accumulating data for the developmentof proper direct N2O emission factors, we tested for possible differences between urine and dung as N2Osources and the difference in emissions between the dry and wet season. An area of Brachiaria brizantha atthe Embrapa Rice and Bean Centre in the Cerrado (central savannah) region (Goiás state) was subdividedinto plots where fresh cattle urine and dung were monitored for three consecutive periods (two in therainy and one in the dry season) for N losses, principally N2O emissions and NH3volatilization.15N-labelled urine N was used in the first monitoring period for an N balance study which indicated thatdenitrification and NH3volatilization were the most important processes for N loss. Percentages of N lostas N2O and as volatilized NH3were greater for urine than for dung. In addition, N losses as N2O in therainy season were much greater than during the dry season. Representing the Cerrado region and theextensive pasture systems common in this region, direct emission 0.007 g N2O?N g−1(0.7%) excreta N,well below the EF3PRPof 0.020 g N g−1(2%) used by IPCC for cattle N in excreta. The fraction of excreta Nlost as NH3of ∼15% was in line with the IPCC... Mostrar Tudo |
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Palavras-Chave: |
Catlle; Cattle excreta; Greenhouse gas; N bbalance. |
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Thesagro: |
Bovino; Cerrado; Esterco de gado; Função fisiológica; Micção; Óxido; Urina. |
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Thesaurus Nal: |
Cattle manure; Excreta; Greenhouse gas emissions; Nitrogen balance. |
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Categoria do assunto: |
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L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02728naa a2200397 a 4500
001 1991421
005 2014-08-26
008 2014 bl uuuu u00u1 u #d
022 $a0167-8809
024 7 $ahttp://dx.doi.org/10.1016/j.agee.2014.01.010$2DOI
100 1 $aLESSA, A. C. R.
245 $aBovine urine and dung deposited on Brazilian savannah pastures contribute differently to direct and indirect soil nitrous oxide emissions.
260 $c2014
520 $aCattle ranching is one of the most important agricultural activities in Brazil. The impact of livestock onsoil N2O emissions in Brazil has only been assessed using a Tier 1 approach of the IPCC guidelines, as thereare no data available from field studies. Apart from the need for accumulating data for the developmentof proper direct N2O emission factors, we tested for possible differences between urine and dung as N2Osources and the difference in emissions between the dry and wet season. An area of Brachiaria brizantha atthe Embrapa Rice and Bean Centre in the Cerrado (central savannah) region (Goiás state) was subdividedinto plots where fresh cattle urine and dung were monitored for three consecutive periods (two in therainy and one in the dry season) for N losses, principally N2O emissions and NH3volatilization.15N-labelled urine N was used in the first monitoring period for an N balance study which indicated thatdenitrification and NH3volatilization were the most important processes for N loss. Percentages of N lostas N2O and as volatilized NH3were greater for urine than for dung. In addition, N losses as N2O in therainy season were much greater than during the dry season. Representing the Cerrado region and theextensive pasture systems common in this region, direct emission 0.007 g N2O?N g−1(0.7%) excreta N,well below the EF3PRPof 0.020 g N g−1(2%) used by IPCC for cattle N in excreta. The fraction of excreta Nlost as NH3of ∼15% was in line with the IPCC guidelines. Disaggregation of emission factors for excretatype is recommended.
650 $aCattle manure
650 $aExcreta
650 $aGreenhouse gas emissions
650 $aNitrogen balance
650 $aBovino
650 $aCerrado
650 $aEsterco de gado
650 $aFunção fisiológica
650 $aMicção
650 $aÓxido
650 $aUrina
653 $aCatlle
653 $aCattle excreta
653 $aGreenhouse gas
653 $aN bbalance
700 1 $aMADARI, B. E.
700 1 $aPAREDES, D. S.
700 1 $aBODDEY, R. M.
700 1 $aURQUIAGA, S.
700 1 $aJANTALIA, C. P.
700 1 $aALVES, B. J. R.
773 $tAgriculture, Ecosystems and Environment, Amsterdam$gv. 190, p. 104-111, June 2014.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | FERREIRA NETO, A. A.; NEU, D. H.; GOES, E. S. dos R.; RODRIGUES, L. A.; VETORELLI, M. P. Economic feasibility of technified tilapia production in Brazil. In: CONFERÊNCIA LATINOAMERICANA SOBRE EL CULTIVO DE PECES NATIVOS, 8.; CONGRESSO COLOMBIANO DE ACUICULTURA, 11. 2024, Medellín, Colombia. Acuicultura en Latinoamérica: Innovación y sostenibilidad para una acuicultura global. Medellín: World Aquaculture Society, 2024.| Tipo: Resumo em Anais de Congresso |
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