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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
04/07/2007 |
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Data da última atualização: |
17/03/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALVALÁ, R. C. S.; GIELOW, R.; ROCHA, H. R. da; FREITAS, H. C.; LOPES, J. M.; MANZI, A. O.; RANDOW, C. von; DIAS, M. A. F. S.; CABRAL, O. M. R.; WATERLOO, M. J. |
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Afiliação: |
R. C. S. ALVALA, Instituto Nacional de Pesquisas Espaciais/SP; R. GIELOW, Instituto Nacional de Pesquisas Espaciais/SP; H. R. DA ROCHA,, USP/SP; H. C. FREITAS, USP/SP; J. M. LOPES, USP; A. O. MANZI,, Instituto Nacional de Pesquisas Espaciais/SP; C. VON RANDOW, Instituto Nacional de Pesquisas Espaciais; M. A. F. S. DIAS, USP; OSVALDO MACHADO RODRIGUES CABRAL, CNPMA; M. J. WATERLOO, Vrije Universiteit Amsterdam, Amsterdam, Netherlands. |
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Título: |
Intradiurnal and seasonal variability of soil temperature, heat flux, soil moisture content, and thermal properties under forest and pasture in Rondônia. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Journal of Geophysical Research, Washington, v. 107, n. D20, p. LBA10-1 - LBA 10-20, 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Soil temperatures depend on the soil heat flux, an important parameter in meteorological and plant growth-energy balance models. Thus, they were measured, together with soil moisture contents, within the LBA program at forest (Reserva Jaru) and pasture (Fazenda Nossa Senhora) sites in Rondônia, Brazilian Amazonia during wet (February) and dry (August) periods of 1999. The wet period showed maxima of the heat flux into the soil around five to six times smaller at the forest than at the pasture, except for some spikes that are related to stronger solar forcing, such as those due to sunspecks in the forest. This pattern remained during the dry period, but with doubled maximum values. Also, the soil heat flux and the soil temperatures responded very significantly to the passage of cold fronts in both periods at both sites. Temperature profiles measured in the 0.10-0.40 m soil layer showed daily averages and ranges smaller at the forest than at the pasture. The daily average of the soil moisture content in the same layer, during the wet season, increased with depth at both sites, with consistently lower values at the forest. However, their ranges were smaller at the pasture, except for the 0.40 m depth. During the dry period, these ranges were much higher at the pasture, but with nearer average values. Finally, the computed daily apparent soil thermal diffusivities, volumetric heat contents, and thermal conductivities are presented, with the first ones crossed with the measured soil moisture content. MenosSoil temperatures depend on the soil heat flux, an important parameter in meteorological and plant growth-energy balance models. Thus, they were measured, together with soil moisture contents, within the LBA program at forest (Reserva Jaru) and pasture (Fazenda Nossa Senhora) sites in Rondônia, Brazilian Amazonia during wet (February) and dry (August) periods of 1999. The wet period showed maxima of the heat flux into the soil around five to six times smaller at the forest than at the pasture, except for some spikes that are related to stronger solar forcing, such as those due to sunspecks in the forest. This pattern remained during the dry period, but with doubled maximum values. Also, the soil heat flux and the soil temperatures responded very significantly to the passage of cold fronts in both periods at both sites. Temperature profiles measured in the 0.10-0.40 m soil layer showed daily averages and ranges smaller at the forest than at the pasture. The daily average of the soil moisture content in the same layer, during the wet season, increased with depth at both sites, with consistently lower values at the forest. However, their ranges were smaller at the pasture, except for the 0.40 m depth. During the dry period, these ranges were much higher at the pasture, but with nearer average values. Finally, the computed daily apparent soil thermal diffusivities, volumetric heat contents, and thermal conductivities are presented, with the first ones crossed with the measured s... Mostrar Tudo |
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Palavras-Chave: |
Fluxo de calor; Variabilidade. |
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Thesagro: |
Balanço de Energia; Floresta; Pastagem; Temperatura do Solo; Umidade do Solo. |
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Thesaurus Nal: |
Amazonia. |
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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/163809/1/Alvala-Intradiurnal-6959.pdf
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Marc: |
LEADER 02534naa a2200325 a 4500
001 1015531
005 2021-03-17
008 2002 bl uuuu u00u1 u #d
100 1 $aALVALÁ, R. C. S.
245 $aIntradiurnal and seasonal variability of soil temperature, heat flux, soil moisture content, and thermal properties under forest and pasture in Rondônia.$h[electronic resource]
260 $c2002
520 $aSoil temperatures depend on the soil heat flux, an important parameter in meteorological and plant growth-energy balance models. Thus, they were measured, together with soil moisture contents, within the LBA program at forest (Reserva Jaru) and pasture (Fazenda Nossa Senhora) sites in Rondônia, Brazilian Amazonia during wet (February) and dry (August) periods of 1999. The wet period showed maxima of the heat flux into the soil around five to six times smaller at the forest than at the pasture, except for some spikes that are related to stronger solar forcing, such as those due to sunspecks in the forest. This pattern remained during the dry period, but with doubled maximum values. Also, the soil heat flux and the soil temperatures responded very significantly to the passage of cold fronts in both periods at both sites. Temperature profiles measured in the 0.10-0.40 m soil layer showed daily averages and ranges smaller at the forest than at the pasture. The daily average of the soil moisture content in the same layer, during the wet season, increased with depth at both sites, with consistently lower values at the forest. However, their ranges were smaller at the pasture, except for the 0.40 m depth. During the dry period, these ranges were much higher at the pasture, but with nearer average values. Finally, the computed daily apparent soil thermal diffusivities, volumetric heat contents, and thermal conductivities are presented, with the first ones crossed with the measured soil moisture content.
650 $aAmazonia
650 $aBalanço de Energia
650 $aFloresta
650 $aPastagem
650 $aTemperatura do Solo
650 $aUmidade do Solo
653 $aFluxo de calor
653 $aVariabilidade
700 1 $aGIELOW, R.
700 1 $aROCHA, H. R. da
700 1 $aFREITAS, H. C.
700 1 $aLOPES, J. M.
700 1 $aMANZI, A. O.
700 1 $aRANDOW, C. von
700 1 $aDIAS, M. A. F. S.
700 1 $aCABRAL, O. M. R.
700 1 $aWATERLOO, M. J.
773 $tJournal of Geophysical Research, Washington$gv. 107, n. D20, p. LBA10-1 - LBA 10-20, 2002.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
08/03/2017 |
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Data da última atualização: |
09/03/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SHARMA, K.; BOTTON, M.; BORGES, R.; MACHOTA JR, R.; SAROLI, J.; RICO, J.; SILVA, R. O. da; BERNARDI, C.; URRUTIA, W.; MAFRA, L. E. J.; MAFRA-NETO, A. |
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Afiliação: |
Kavita Sharma, ISCA Technologies, Inc.; MARCOS BOTTON, CNPUV; Rafael Borges, ISCA Tecnologias Ltda; Ruben Machota Jr, Universidade Federal de Pelotas; Jesse Saroli, ISCA Technologies, Inc; Jonathan Rico, ISCA Technologies, Inc.; Rodrigo Oliveira da Silva, ISCA Technologies, Inc.; Carmem Bernardi, ISCA Technologies, Inc.; William Urrutia, ISCA Technologies, Inc.; Leandro Ernesto Jost Mafra, ISCA Tecnologias Ltda; Agenor Mafra-Neto, ISCA Technologies, Inc. |
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Título: |
The advantages of semiochemical-based attract and kill techniques in insect pest management. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 25., 2016, Orlando, Flórida. Anais..., Orlando, Flórida: ICE, de 25 a 30 Sept. 2016, Resumo 2557, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
Introduction: Semiochemicals (chemicals impacting insect behavior) have been employed in species-specific, ecologically friendly insect pest control strategies through a wide variety of mechanisms, many of which do not require the application of conventional insecticides. These include mating disruption?application of sex pheromones in such a way that male insects are unable to locate a female mate, reducing the size of the pest population in the treated area over time?mass trapping, and repellency. However, semiochemical attractants can also be used in combination with small amounts of chemical toxicants, a strategy called attract and kill (A&K). |
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Palavras-Chave: |
Insect; Insect pest management; Pest. |
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Thesagro: |
Inseto; Peste; Praga. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/157405/1/2557.pdf
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Marc: |
LEADER 01555nam a2200301 a 4500
001 2066561
005 2017-03-09
008 2016 bl uuuu u00u1 u #d
100 1 $aSHARMA, K.
245 $aThe advantages of semiochemical-based attract and kill techniques in insect pest management.$h[electronic resource]
260 $aIn: INTERNATIONAL CONGRESS OF ENTOMOLOGY, 25., 2016, Orlando, Flórida. Anais..., Orlando, Flórida: ICE, de 25 a 30 Sept. 2016, Resumo 2557$c2016
520 $aIntroduction: Semiochemicals (chemicals impacting insect behavior) have been employed in species-specific, ecologically friendly insect pest control strategies through a wide variety of mechanisms, many of which do not require the application of conventional insecticides. These include mating disruption?application of sex pheromones in such a way that male insects are unable to locate a female mate, reducing the size of the pest population in the treated area over time?mass trapping, and repellency. However, semiochemical attractants can also be used in combination with small amounts of chemical toxicants, a strategy called attract and kill (A&K).
650 $aInseto
650 $aPeste
650 $aPraga
653 $aInsect
653 $aInsect pest management
653 $aPest
700 1 $aBOTTON, M.
700 1 $aBORGES, R.
700 1 $aMACHOTA JR, R.
700 1 $aSAROLI, J.
700 1 $aRICO, J.
700 1 $aSILVA, R. O. da
700 1 $aBERNARDI, C.
700 1 $aURRUTIA, W.
700 1 $aMAFRA, L. E. J.
700 1 $aMAFRA-NETO, A.
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Embrapa Uva e Vinho (CNPUV) |
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