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| Registros recuperados : 20 | |
| 10. |  | COSTA, F. de S.; BAYER, C.; LIMA, M. A. de; FRIGHETTO, R. T. S.; MACEDO, V. R. M.; MARCOLIN, E. Variação diária da emissão de metano em solo cultivado com arroz irrigado no sul do Brasil. Ciência Rural, Santa Maria, v. 38, n. 7, p.2049-2053, out. 2008.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 11. | | COSTA, F. de S.; BAYER, C.; LIMA, M. A. de; FRIGHETTO, R. T. S.; BOHNEN, H.; MACEDO, V. R. M.; MARCOLIN, E. Efeito estufa, metano e sistemas de cultivo irrigado no RS. Lavoura Arrozeira, Porto Alegre, v. 52, n. 436, p. 29-32, jul./set. 2004.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 12. | | LIMA, M. A. de; FRIGHETTO, R. T. S.; VILLELA, O. V.; COSTA, F. de S.; BAYER, C.; MACEDO, V. R. M.; MARCOLIN, E. Emissão de metano em cultivo de arroz irrigado por inundação. In: LIMA, M. A.; BODDEY, R. M.; ALVES, B. J. R.; MACHADO, P. L. O. de A.; URQUIAGA, S. (Ed.). Estoques de carbono e emissões de gases de efeito estufa na agropecuária brasileira. Brasília, DF: Embrapa; Jaguariúna: Embrapa Meio Ambiente, 2012. p. 193-221.| Biblioteca(s): Embrapa Acre; Embrapa Meio Ambiente. |
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| 13. | | ANGHINONI, I.; GENRO JUNIOR, S. A.; SILVA, L. S. da; BOHNEN, H.; RHEINHEIMER, D. S.; OSÓRIO FILHO, B. D.; MACEDO, V. R. M.; MARCOLIN, E. Fertilidade dos solos cultivados com arroz irrigado no Rio Grande do Sul. Cochoeirinha: IRGA, 2004. 52 p. (IRGA. Boletim Técnico, 1).| Biblioteca(s): Embrapa Meio-Norte. |
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| 14. | | ANGHINONI, I.; GENRRO JUNIOR, S. A.; SILVA, L. S. da; BOHNEN, H.; RHEINHEIMER, D. S.; OSÓRIO FILHO, B. D.; MACEDO, V. R. M.; MARCOLIN, E. Fertilidade dos solos cultivados com arroz irrigado no Rio Grande do Sul. Cochoeirinha: IRGA, 2004. 52 p. (IRGA. Boletim Técnico, 1).| Biblioteca(s): Embrapa Clima Temperado. |
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| 15. | | LIMA, M. A. de; FRIGHETTO, R. T. S.; VILLELA, O. V.; COSTA, F. de S.; BAYER, C.; MACEDO, V. R. M.; MARCOLIN, E. Methane emissions in flooded rice cultivation. In: BODDEY, R. M.; LIMA, M. A.; ALVES, B. J. R.; MACHADO, P. L. O. de A.; URQUIAGA, S. (Ed.). Carbon stocks and greenhouse gas emissions in Brazilian agriculture. Brasília, DF: Embrapa, 2014. Chapter 6.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 16. | | COSTA, F. de S.; LIMA, M. A. de; BAYER, C.; FRIGHETTO, R. T. S.; BOHNEN, H.; MACEDO, V. R. M.; MARCOLIN, E. Methane emissions from a flooded rice field in the south of Brazil. In: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 190-197.| Biblioteca(s): Embrapa Meio Ambiente. |
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| 18. | | MENEZES, V. G.; ANGHINONI, I.; SILVA, P. R. F. da; MACEDO, V. R. M.; PETRY, C.; GROHS, D. S.; FREITAS, T. F. S. de; VALENTE, L. A. de L. Projeto 10: management strategies to increase productivity and sustainability of irrigated rice fields growth in the State of Rio Grande do Sul, Brazil: adevelopments and new challenges. Porto Alegre: IRGA, 2013. 100 p. il.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 19. | | BAYER, C.; COSTA, F. de S.; PEDROSO, G. M.; ZSCHORNACK, T.; CAMARGO, E. S.; LIMA, M. A. de; FRIGHETTO, R. T. S.; GOMES, J.; MARCOLIN, E.; MACEDO, V. R. M. Yield-scaled greenhouse gas emissions from flood irrigated rice under long-term conventional tillage and no-till systems in a Humid Subtropical climate. Field Crops Research, Amsterdam, v. 162, p. 60-69, June 2014.| Biblioteca(s): Embrapa Acre; Embrapa Meio Ambiente. |
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| 20. | | MUNDSTOCK, C. M.; MACEDO, V. R. M.; GADEA, A. D. de C.; KALSING, A.; GROHS, D. S.; MARCOLIN, E.; HERNANDES, G.; FUNCK, G. R. D.; ANGHINONI, I.; BOENI, M.; SILVA, P. R. F. da; GUMA, J. M. C. R.; FAGUNDES, C. A. A.; FREITAS, T. F. S.; MENEZES, V. G.; MENEGHETTI, V. Manual de boas práticas agrícolas: guia para a sustentabilidade da lavoura de arroz irrigado do Rio Grande do Sul. Cachoeirinha, RS: IRGA, 2011. 79 p. il.| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Pecuária Sul. |
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| Registros recuperados : 20 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/10/2006 |
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Data da última atualização: |
05/09/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
COSTA, F. de S.; LIMA, M. A. de; BAYER, C.; FRIGHETTO, R. T. S.; BOHNEN, H.; MACEDO, V. R. M.; MARCOLIN, E. |
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Afiliação: |
F. de S. COSTA; MAGDA APARECIDA DE LIMA, CNPMA; C. BAYER; ROSA TOYOKO SHIRAISHI FRIGHETTO, CNPMA; H. BOHNEN; V. R. M. MACEDO; E. MARCOLIN. |
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Título: |
Methane emissions from a flooded rice field in the south of Brazil. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
In: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 190-197. |
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Idioma: |
Inglês |
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Conteúdo: |
The State of Rio Grande do Sul in Brazil cultivates about 1Mha of rice in paddy fields. The soils are prepared using either conventional tillage (CT, 41% of the area) or no tillage (NT, 14% of area), the remaining falling in a mixed soil-preparation category. The outcomes of the current study represent the first evaluation of CH4 emissions from flooded rice fields in the south of Brazil. This information will feed the Brazilian greenhouse gas inventory. The study was carried out from January through March 2003 at the IRGA experimental station located in the municipality of Cachoerinha, Rio Grande do Sul, Brazil. Rice has been cultivated in this Gleisol area since 1994 using either the CT or NT system. The closed chamber method was used to collect air samples from 9:00 AM to 12:00 Noon on a weekly basis or in 24-hour campaigns; samples were analyzed using gas chromatography. Soil and plant parameters were also measured in order to determine which ecosystem factors affect CH4 emissions from the soil into the atmosphere. Along the period, CH4 emission rates varied from 24 to 703 mg m-2 day-1. NT plot emissions were initially greater than those from the CT plot, probably due to having maintained the crop residues on the surface of soil in the NT system. Nevertheless, CH4 emission rates in the CT plot were higher than in the NT plot 14 days after flooding, probably due to the higher root mass in the deeper soil layer in the NT system. The close relationship (P<0.01) found between CH4 emissions and soil temperature in both systems explains 60% of CH4 emissions. Total CH4 emissions were 33 and 22 g m-2 in the CT and NT systems, respectively. The emission variation between the soil preparation systems corresponds to 2,860 kg ha-1 CO2 equivalents. Moreover, this reduction represents 0.8 Mg ha-1 yr-1 C equivalents, greater than the average value of 0.58 Mg C ha-1 year-1 for C sequestration in agricultural soils in the subtropical region of Brazil. The 24-hour campaign emissions produced a sigmoid curve into both the atmosphere and the chamber, albeit with an inverse relationship. The 24-hour emissions were controlled by the soil and flood-water temperatures. MenosThe State of Rio Grande do Sul in Brazil cultivates about 1Mha of rice in paddy fields. The soils are prepared using either conventional tillage (CT, 41% of the area) or no tillage (NT, 14% of area), the remaining falling in a mixed soil-preparation category. The outcomes of the current study represent the first evaluation of CH4 emissions from flooded rice fields in the south of Brazil. This information will feed the Brazilian greenhouse gas inventory. The study was carried out from January through March 2003 at the IRGA experimental station located in the municipality of Cachoerinha, Rio Grande do Sul, Brazil. Rice has been cultivated in this Gleisol area since 1994 using either the CT or NT system. The closed chamber method was used to collect air samples from 9:00 AM to 12:00 Noon on a weekly basis or in 24-hour campaigns; samples were analyzed using gas chromatography. Soil and plant parameters were also measured in order to determine which ecosystem factors affect CH4 emissions from the soil into the atmosphere. Along the period, CH4 emission rates varied from 24 to 703 mg m-2 day-1. NT plot emissions were initially greater than those from the CT plot, probably due to having maintained the crop residues on the surface of soil in the NT system. Nevertheless, CH4 emission rates in the CT plot were higher than in the NT plot 14 days after flooding, probably due to the higher root mass in the deeper soil layer in the NT system. The close relationship (P<0.01) found between... Mostrar Tudo |
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Thesagro: |
Arroz; Metano. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163485/1/Costa-methane.pdf
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Marc: |
LEADER 02877nam a2200205 a 4500
001 1015069
005 2017-09-05
008 2003 bl uuuu u00u1 u #d
100 1 $aCOSTA, F. de S.
245 $aMethane emissions from a flooded rice field in the south of Brazil.$h[electronic resource]
260 $aIn: INTERNATIONAL METHANE AND NITROUS OXIDE MITIGATION CONFERENCE, 3., 2003, Beijing. Proceedings... Beijing: China Coal Information Institute, 2003. p. 190-197.$c2003
520 $aThe State of Rio Grande do Sul in Brazil cultivates about 1Mha of rice in paddy fields. The soils are prepared using either conventional tillage (CT, 41% of the area) or no tillage (NT, 14% of area), the remaining falling in a mixed soil-preparation category. The outcomes of the current study represent the first evaluation of CH4 emissions from flooded rice fields in the south of Brazil. This information will feed the Brazilian greenhouse gas inventory. The study was carried out from January through March 2003 at the IRGA experimental station located in the municipality of Cachoerinha, Rio Grande do Sul, Brazil. Rice has been cultivated in this Gleisol area since 1994 using either the CT or NT system. The closed chamber method was used to collect air samples from 9:00 AM to 12:00 Noon on a weekly basis or in 24-hour campaigns; samples were analyzed using gas chromatography. Soil and plant parameters were also measured in order to determine which ecosystem factors affect CH4 emissions from the soil into the atmosphere. Along the period, CH4 emission rates varied from 24 to 703 mg m-2 day-1. NT plot emissions were initially greater than those from the CT plot, probably due to having maintained the crop residues on the surface of soil in the NT system. Nevertheless, CH4 emission rates in the CT plot were higher than in the NT plot 14 days after flooding, probably due to the higher root mass in the deeper soil layer in the NT system. The close relationship (P<0.01) found between CH4 emissions and soil temperature in both systems explains 60% of CH4 emissions. Total CH4 emissions were 33 and 22 g m-2 in the CT and NT systems, respectively. The emission variation between the soil preparation systems corresponds to 2,860 kg ha-1 CO2 equivalents. Moreover, this reduction represents 0.8 Mg ha-1 yr-1 C equivalents, greater than the average value of 0.58 Mg C ha-1 year-1 for C sequestration in agricultural soils in the subtropical region of Brazil. The 24-hour campaign emissions produced a sigmoid curve into both the atmosphere and the chamber, albeit with an inverse relationship. The 24-hour emissions were controlled by the soil and flood-water temperatures.
650 $aArroz
650 $aMetano
700 1 $aLIMA, M. A. de
700 1 $aBAYER, C.
700 1 $aFRIGHETTO, R. T. S.
700 1 $aBOHNEN, H.
700 1 $aMACEDO, V. R. M.
700 1 $aMARCOLIN, E.
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