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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
01/08/2013 |
Data da última atualização: |
12/08/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BERGIER, I.; RECH, R.; MONTEIRO, H. de C.; SORIANO, E. |
Afiliação: |
IVAN BERGIER TAVARES DE LIMA, CPAP; RAQUEL RUBIA RECH, CNPSA; HERNANDES DE CAMPOS MONTEIRO, CPAP; EDUARDO SORIANO, Ministério da Ciência, Tecnologia e Inovação. |
Título: |
User effects on chamber nitrous oxide emissions from oxisol soils in no-tillage maize fertirrigated with anaerobically digested swine manure. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Environment and Natural Resources Research, v. 3, n. 4, p. 1-11, 2013. |
Páginas: |
11 p. |
ISSN: |
1927-0488 |
Idioma: |
Inglês |
Conteúdo: |
Closed static chambers are frequently adopted for estimating gas fluxes across environmental interfaces. In this study we assessed the effects of three gas sampling rates and two methods of chamber placement in fertirrigated
soils for estimating nitrous oxide (N2O) emissions, using chambers with similar design and on-site gas chromatography. The soils under analysis were fertirrigated with (liquid) digested swine manure at three different doses. The results indicate that N2O flux estimates are firmly determined by the chosen sampling rate, chamber placement, chamber design, and the emission magnitude itself. N2O fluxes were best estimated by faster sampling rates while gently placing the chamber at the soil surface due to conspicuous N2O emissions and relatively small chamber volume. A generalized chamber accumulation model developed by normalizing the dataset was used to illustrate effects on expected "low unforced-chamber", "high unforced-chamber" and "high forced-chamber" fluxes. We concluded that it is possible to adopt simple design and low-disturbing chambers with sufficient volume, height, and surface area for determining gaseous emissions across soil-air interfaces. Nevertheless, critical on-site gas sampling rate adjustment (by gas chromatography or other as precise real-time measuring device) is critical to avoid estimation inaccuracies in emission estimates. |
Palavras-Chave: |
Agroforestry-livestock integration; Sustainable production. |
Thesaurus Nal: |
agroecosystems; climate change; greenhouse gases. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 02145naa a2200241 a 4500 001 1963216 005 2013-08-12 008 2013 bl --- 0-- u #d 022 $a1927-0488 100 1 $aBERGIER, I. 245 $aUser effects on chamber nitrous oxide emissions from oxisol soils in no-tillage maize fertirrigated with anaerobically digested swine manure. 260 $c2013 300 $a11 p. 520 $aClosed static chambers are frequently adopted for estimating gas fluxes across environmental interfaces. In this study we assessed the effects of three gas sampling rates and two methods of chamber placement in fertirrigated soils for estimating nitrous oxide (N2O) emissions, using chambers with similar design and on-site gas chromatography. The soils under analysis were fertirrigated with (liquid) digested swine manure at three different doses. The results indicate that N2O flux estimates are firmly determined by the chosen sampling rate, chamber placement, chamber design, and the emission magnitude itself. N2O fluxes were best estimated by faster sampling rates while gently placing the chamber at the soil surface due to conspicuous N2O emissions and relatively small chamber volume. A generalized chamber accumulation model developed by normalizing the dataset was used to illustrate effects on expected "low unforced-chamber", "high unforced-chamber" and "high forced-chamber" fluxes. We concluded that it is possible to adopt simple design and low-disturbing chambers with sufficient volume, height, and surface area for determining gaseous emissions across soil-air interfaces. Nevertheless, critical on-site gas sampling rate adjustment (by gas chromatography or other as precise real-time measuring device) is critical to avoid estimation inaccuracies in emission estimates. 650 $aagroecosystems 650 $aclimate change 650 $agreenhouse gases 653 $aAgroforestry-livestock integration 653 $aSustainable production 700 1 $aRECH, R. 700 1 $aMONTEIRO, H. de C. 700 1 $aSORIANO, E. 773 $tEnvironment and Natural Resources Research$gv. 3, n. 4, p. 1-11, 2013.
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1. | | MAIA, J. N.; BARBOSA, L. R.; RODRIGUES, A. P. Efeito do numero de gerações de Cleruchoides noackae (Hymenoptera, Mymaridae) no parasitismo de Thaumastocoris peregrinus (Hemiptera, Thaumastocoridae). In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 14., 2015, Colombo. Anais... Colombo: Embrapa Florestas, 2015. p. 52-53. (Embrapa Florestas. Documentos, 278). Resumo.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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2. | | BECCHI, L. K.; MAIA, J. N.; SOUZA, A. R. de; PAES, J. P. P.; BARBOSA, L. R.; WILCKEN, C. F. Exigências térmicas para o desenvolvimento de Cleruchoides noackae (Hymenoptera: Mymaridae), parasitoide de ovos de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 26.; CONGRESSO LATINO-AMERICANO DE ENTOMOLOGIA, 9., 2016, Maceió. Anais... Brasília, DF : Embrapa, 2016. p. 111.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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3. | | MAIA, J. N.; SOUZA, L. N. de; RODRIGUES, A. P.; BECCHI, L. K.; WILCKEN, C. F.; BARBOSA, L. R. Efeito do número de gerações no parasitismo de Cleruchoides noackae. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 26.; CONGRESSO LATINO-AMERICANO DE ENTOMOLOGIA, 9., 2016, Maceió. Anais... Brasília, DF : Embrapa, 2016. p. 469.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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4. | | MAIA, J. N.; BECCHI, L. K.; RODRIGUES, A. P.; JUNQUEIRA, L. R.; BARBOSA, L. R.; WILCKEN, C. F. Development and emergence of Cleruchoides noackae (Hymenoptera:Mymaridae) in Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) eggs at different temperatures. In: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 25., 2016, Orlando. Abstracts... Annapolis: Entomological Society of America, 2016. D3143.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Florestas. |
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5. | | RODRIGUES, A. P.; BRENNER, E. A.; MAIA, J. N.; SOUZA, L. N. de; BECCHI, L. K.; WILCKEN, C. F.; BARBOSA, L. R. Desenvolvimento e parasitismo de Cleruchoides noackae (Hymenoptera: Mymaridae) com diferentes alimentos. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 26.; CONGRESSO LATINO-AMERICANO DE ENTOMOLOGIA, 9., 2016, Maceió. Anais... Brasília, DF : Embrapa, 2016. p. 471.Tipo: Resumo em Anais de Congresso |
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