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Registro Completo |
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Biblioteca(s): |
Embrapa Agropecuária Oeste. |
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Data corrente: |
18/12/2014 |
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Data da última atualização: |
18/12/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SORDI, A.; DIECKOW, J.; BAYER, C.; ALBUQUERQUE, M. A.; PIVA, J. T.; ZANATTA, J. A.; TOMAZI, M.; ROSA, C. M. da; MORAES, A. de. |
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Afiliação: |
ANDRÉ SORDI, Programa de Pós-Graduação em Ciência do Solo, UFPR; Jeferson Dieckow, UFPR; Cimélio Bayer, UFRGS; MÁRCIO AMARAL ALBUQUERQUE, Programa de pós-graduação em Ciência do Solo, UFPR; JONATAS THIAGO PIVA, UFSC; JOSILEIA ACORDI ZANATTA, CNPF; MICHELY TOMAZI, CPAO; CARLA MACHADO DA ROSA, UFRGS; Anibal de Moraes, UFPR. |
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Título: |
Nitrous oxide emission factors for urine and dung patchesin a subtropical Brazilian pastureland. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Agriculture, Ecosystems and Environment, v. 190, p. 94-103, 2014. |
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DOI: |
http://dx.doi.org/10.1016/j.agee.2013.09.004 |
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Idioma: |
Inglês |
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Conteúdo: |
tCattle urine and dung (faeces) patches are nitrous oxide (N2O) sources in pasturelands with impactsin the global N2O budget, but specific information about those emissions are still missing for Braziliansubtropical and tropical regions. We conducted a sequence of 3 field-trials (summer, winter and spring,90 days each) to evaluate the N2O emission and emission factor (EF) after the deposition of 3 volumes ofcattle urine or 3 weights of dung (½, 1 and 1½ time the mean urination volume or defecation weight ofFriesian cows) on a free-drained Cambisol of a subtropical pastureland of Brazil. The N2O emission peaks(3198 g N2O-N m−2h−1after urine in summer was the highest) occurred on average 17 ± 9 days afterapplication (DAA), both for urine and dung, and dropped to the background levels 41 ± 10 DAA of urineand 49 ± 10 DAA of dung. The highest contents of NH4+-N in soil (200?250 mg N kg−1) occurred one dayafter urine application and 10?14 days later for dung (100?200 mg N kg−1). Nitrate peaks occurred from23 to 26 DAA in urine patches (∼40?50 mg N kg−1) and 19?50 DAA in dung patches (∼40?50 mg N kg−1).The N2O emission peaks for urine coincided with soil NH4+-N peak in winter but with soil NO3−-N peakin spring. For dung, the emission peak seemed to be more associated with soil NO3−-N than to NH4+-N,either in winter or spring (inorganic-N was not assessed in summer). It was not possible to concludewhether nitrification or denitrification was the dominant process in N2O production, but it seemed thatboth played relevant roles. The EF for urine, averaged across the seasons, diminished with increments inurine volume, from 0.33% in ½ volume to 0.19% in 1½ volume, possibly because urine percolated deeperinto the soil and proportionally less N remained available for N2O production in the top layer. The EFfor dung was 0.19%, 0.12% and 0.14% for ½, 1 and 1½ weight, respectively, showing no clear trend withincrement in dung weight. The lowest EFs for urine and dung occurred in winter, possibly because oflowest temperatures and soil water-filled pore space. The average EF for dung (0.15%) was lower thanthat of urine (0.26%), because urea-N of urine is more readily available for the hydrolysis than organicN forms of dung. This result suggests that these two excreta should be addressed separately in nationalgreenhouse gases inventories or communications. Our results suggest that the default 2% EF proposed inIPCC Guidelines for cattle excreta are overestimated for subtropical Brazil. MenostCattle urine and dung (faeces) patches are nitrous oxide (N2O) sources in pasturelands with impactsin the global N2O budget, but specific information about those emissions are still missing for Braziliansubtropical and tropical regions. We conducted a sequence of 3 field-trials (summer, winter and spring,90 days each) to evaluate the N2O emission and emission factor (EF) after the deposition of 3 volumes ofcattle urine or 3 weights of dung (½, 1 and 1½ time the mean urination volume or defecation weight ofFriesian cows) on a free-drained Cambisol of a subtropical pastureland of Brazil. The N2O emission peaks(3198 g N2O-N m−2h−1after urine in summer was the highest) occurred on average 17 ± 9 days afterapplication (DAA), both for urine and dung, and dropped to the background levels 41 ± 10 DAA of urineand 49 ± 10 DAA of dung. The highest contents of NH4+-N in soil (200?250 mg N kg−1) occurred one dayafter urine application and 10?14 days later for dung (100?200 mg N kg−1). Nitrate peaks occurred from23 to 26 DAA in urine patches (∼40?50 mg N kg−1) and 19?50 DAA in dung patches (∼40?50 mg N kg−1).The N2O emission peaks for urine coincided with soil NH4+-N peak in winter but with soil NO3−-N peakin spring. For dung, the emission peak seemed to be more associated with soil NO3−-N than to NH4+-N,either in winter or spring (inorganic-N was not assessed in summer). It was not possible to concludewhether nitrification or d... Mostrar Tudo |
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Palavras-Chave: |
Fator de emissão; Óxido nitroso; Volume de urina. |
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Thesagro: |
Gado; Nitrato; Pastagem. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03449naa a2200301 a 4500
001 2003235
005 2014-12-18
008 2014 bl --- 0-- u #d
024 7 $ahttp://dx.doi.org/10.1016/j.agee.2013.09.004$2DOI
100 1 $aSORDI, A.
245 $aNitrous oxide emission factors for urine and dung patchesin a subtropical Brazilian pastureland.$h[electronic resource]
260 $c2014
520 $atCattle urine and dung (faeces) patches are nitrous oxide (N2O) sources in pasturelands with impactsin the global N2O budget, but specific information about those emissions are still missing for Braziliansubtropical and tropical regions. We conducted a sequence of 3 field-trials (summer, winter and spring,90 days each) to evaluate the N2O emission and emission factor (EF) after the deposition of 3 volumes ofcattle urine or 3 weights of dung (½, 1 and 1½ time the mean urination volume or defecation weight ofFriesian cows) on a free-drained Cambisol of a subtropical pastureland of Brazil. The N2O emission peaks(3198 g N2O-N m−2h−1after urine in summer was the highest) occurred on average 17 ± 9 days afterapplication (DAA), both for urine and dung, and dropped to the background levels 41 ± 10 DAA of urineand 49 ± 10 DAA of dung. The highest contents of NH4+-N in soil (200?250 mg N kg−1) occurred one dayafter urine application and 10?14 days later for dung (100?200 mg N kg−1). Nitrate peaks occurred from23 to 26 DAA in urine patches (∼40?50 mg N kg−1) and 19?50 DAA in dung patches (∼40?50 mg N kg−1).The N2O emission peaks for urine coincided with soil NH4+-N peak in winter but with soil NO3−-N peakin spring. For dung, the emission peak seemed to be more associated with soil NO3−-N than to NH4+-N,either in winter or spring (inorganic-N was not assessed in summer). It was not possible to concludewhether nitrification or denitrification was the dominant process in N2O production, but it seemed thatboth played relevant roles. The EF for urine, averaged across the seasons, diminished with increments inurine volume, from 0.33% in ½ volume to 0.19% in 1½ volume, possibly because urine percolated deeperinto the soil and proportionally less N remained available for N2O production in the top layer. The EFfor dung was 0.19%, 0.12% and 0.14% for ½, 1 and 1½ weight, respectively, showing no clear trend withincrement in dung weight. The lowest EFs for urine and dung occurred in winter, possibly because oflowest temperatures and soil water-filled pore space. The average EF for dung (0.15%) was lower thanthat of urine (0.26%), because urea-N of urine is more readily available for the hydrolysis than organicN forms of dung. This result suggests that these two excreta should be addressed separately in nationalgreenhouse gases inventories or communications. Our results suggest that the default 2% EF proposed inIPCC Guidelines for cattle excreta are overestimated for subtropical Brazil.
650 $aGado
650 $aNitrato
650 $aPastagem
653 $aFator de emissão
653 $aÓxido nitroso
653 $aVolume de urina
700 1 $aDIECKOW, J.
700 1 $aBAYER, C.
700 1 $aALBUQUERQUE, M. A.
700 1 $aPIVA, J. T.
700 1 $aZANATTA, J. A.
700 1 $aTOMAZI, M.
700 1 $aROSA, C. M. da
700 1 $aMORAES, A. de
773 $tAgriculture, Ecosystems and Environment$gv. 190, p. 94-103, 2014.
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Registro original: |
Embrapa Agropecuária Oeste (CPAO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
14/12/2023 |
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Data da última atualização: |
16/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 4 |
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Autoria: |
SILVA, L. de J. de S.; SANTOS, A. C. dos; MENEGHETTI, G. A.; PINHEIRO, J. O. C.; ERAZO, R. de L.; MIRANDA, T. N. de O.; GUIMARAES, R. dos R. |
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Afiliação: |
LINDOMAR DE JESUS DE SOUSA SILVA, CPAA; ALESSANDRO CARVALHO DOS SANTOS, BOLSISTA; GILMAR ANTONIO MENEGHETTI, CPAA; JOSE OLENILSON COSTA PINHEIRO, CPAA; RAFAEL DE LIMA ERAZO, SECRETARIA DE ESTADO DE EDUCAÇÃO DO AMAZONAS; TÂNIA NAZARENA DE OLIVEIRA MIRANDA, BOLSISTA; ROSANGELA SANTOS DOS REIS LIMA, CPAA. |
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Título: |
Tecnologias para a inovação como fatores de contribuição para o desenvolvimento de comunidades amazônicas. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Cuadernos de Educación y Desarrollo, v. 15, n. 12, p. 15397-15413, 2023. |
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DOI: |
10.55905/cuadv15n12-018 |
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Idioma: |
Português |
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Notas: |
Título em Inglês: Technologies for innovation as contribution factors to the development of amazon communities. |
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Conteúdo: |
RESUMO O texto traz uma análise das dificuldades vivenciadas pelas comunidades amazônicas que estão diretamente relacionadas ao desenvolvimento socioeconômico, conservação e manutenção do potencial das comunidades para o desenvolvimento comunitário e sustentável. Nessa perspectiva, com base em uma pesquisa de natureza exploratória explicativa, numa abordagem qualitativa, listamos um conjunto de tecnologias que podem contribuir para a superação dos principais entraves produtivos, como o fortalecimento social e econômico das comunidades, sendo que é fundamental um processo de mudanças e afirmação cultural, política, econômica e social, tendo como foco o desenvolvimento humano, o que pressupõe a participação ativa, capacidade individual ou coletiva de interagir, cooperar e associar-se. ABSTRACT This text provides an analysis of the difficulties experienced by Amazonian communities that are directly related to socioeconomic development, conservation and maintenance of the communities' potential for their sustainable development. From this perspective, based on research of an exploratory and explanatory nature in a qualitative approach, we list a set of technologies that can contribute to overcoming the main production obstacles, such as the social and economic strengthening of communities. A process of change is fundamental to promote cultural, political, economic and social affirmation, focusing on human development, which presupposes active participation, individual or collective capacity to interact, cooperate and associate. MenosRESUMO O texto traz uma análise das dificuldades vivenciadas pelas comunidades amazônicas que estão diretamente relacionadas ao desenvolvimento socioeconômico, conservação e manutenção do potencial das comunidades para o desenvolvimento comunitário e sustentável. Nessa perspectiva, com base em uma pesquisa de natureza exploratória explicativa, numa abordagem qualitativa, listamos um conjunto de tecnologias que podem contribuir para a superação dos principais entraves produtivos, como o fortalecimento social e econômico das comunidades, sendo que é fundamental um processo de mudanças e afirmação cultural, política, econômica e social, tendo como foco o desenvolvimento humano, o que pressupõe a participação ativa, capacidade individual ou coletiva de interagir, cooperar e associar-se. ABSTRACT This text provides an analysis of the difficulties experienced by Amazonian communities that are directly related to socioeconomic development, conservation and maintenance of the communities' potential for their sustainable development. From this perspective, based on research of an exploratory and explanatory nature in a qualitative approach, we list a set of technologies that can contribute to overcoming the main production obstacles, such as the social and economic strengthening of communities. A process of change is fundamental to promote cultural, political, economic and social affirmation, focusing on human development, which presupposes active participation, individual or collect... Mostrar Tudo |
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Palavras-Chave: |
Innovation. |
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Thesagro: |
Desenvolvimento Comunitário; Inovação; Tecnologia. |
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Thesaurus NAL: |
Community development; Technology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159701/1/CUADERNOS-Lindomar.pdf
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Marc: |
LEADER 02586naa a2200289 a 4500
001 2159701
005 2024-01-16
008 2023 bl uuuu u00u1 u #d
024 7 $a10.55905/cuadv15n12-018$2DOI
100 1 $aSILVA, L. de J. de S.
245 $aTecnologias para a inovação como fatores de contribuição para o desenvolvimento de comunidades amazônicas.$h[electronic resource]
260 $c2023
500 $aTítulo em Inglês: Technologies for innovation as contribution factors to the development of amazon communities.
520 $aRESUMO O texto traz uma análise das dificuldades vivenciadas pelas comunidades amazônicas que estão diretamente relacionadas ao desenvolvimento socioeconômico, conservação e manutenção do potencial das comunidades para o desenvolvimento comunitário e sustentável. Nessa perspectiva, com base em uma pesquisa de natureza exploratória explicativa, numa abordagem qualitativa, listamos um conjunto de tecnologias que podem contribuir para a superação dos principais entraves produtivos, como o fortalecimento social e econômico das comunidades, sendo que é fundamental um processo de mudanças e afirmação cultural, política, econômica e social, tendo como foco o desenvolvimento humano, o que pressupõe a participação ativa, capacidade individual ou coletiva de interagir, cooperar e associar-se. ABSTRACT This text provides an analysis of the difficulties experienced by Amazonian communities that are directly related to socioeconomic development, conservation and maintenance of the communities' potential for their sustainable development. From this perspective, based on research of an exploratory and explanatory nature in a qualitative approach, we list a set of technologies that can contribute to overcoming the main production obstacles, such as the social and economic strengthening of communities. A process of change is fundamental to promote cultural, political, economic and social affirmation, focusing on human development, which presupposes active participation, individual or collective capacity to interact, cooperate and associate.
650 $aCommunity development
650 $aTechnology
650 $aDesenvolvimento Comunitário
650 $aInovação
650 $aTecnologia
653 $aInnovation
700 1 $aSANTOS, A. C. dos
700 1 $aMENEGHETTI, G. A.
700 1 $aPINHEIRO, J. O. C.
700 1 $aERAZO, R. de L.
700 1 $aMIRANDA, T. N. de O.
700 1 $aGUIMARAES, R. dos R.
773 $tCuadernos de Educación y Desarrollo$gv. 15, n. 12, p. 15397-15413, 2023.
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