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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
15/01/2016 |
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Data da última atualização: |
04/03/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, G. M. da; MAIXNER, A. R. |
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Afiliação: |
GUSTAVO MARTINS DA SILVA, CPPSUL; Adriano Rudi Maixner, UFSM. |
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Título: |
Manejo de pastagens para gado leiteiro. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: CURSO DE PRODUÇÃO DE LEITE ORGÂNICO, 2015, Concórdia. Anais... Concórdia: Embrapa Suínos e Aves, 2015. |
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Páginas: |
p. 56-74. |
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Descrição Física: |
il. color. |
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Série: |
(Embrapa Suínos e Aves. Documentos, 166). |
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ISSN: |
0101- 6245 |
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Idioma: |
Português |
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Conteúdo: |
Muitas regiões no sul do Brasil passaram pelo processo da Revolução Verde e utilizam modelos de produção convencionais, que têm como pressupostos a especialização da produção (monoculturas), o melhoramento genético (animais e plantas altamente produtivas), e a utilização de insumos industriais de alto custo (mecanização, adubos químicos, pesticidas, etc...). |
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Thesagro: |
Pastagem; Planta forrageira; Sistema de produção; Vaca leiteira. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/137071/1/Silva-Maixner.pdf
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Marc: |
LEADER 01036nam a2200205 a 4500
001 2034041
005 2016-03-04
008 2015 bl uuuu u00u1 u #d
022 $a0101- 6245
100 1 $aSILVA, G. M. da
245 $aManejo de pastagens para gado leiteiro.$h[electronic resource]
260 $aIn: CURSO DE PRODUÇÃO DE LEITE ORGÂNICO, 2015, Concórdia. Anais... Concórdia: Embrapa Suínos e Aves$c2015
300 $ap. 56-74.$cil. color.
490 $a(Embrapa Suínos e Aves. Documentos, 166).
520 $aMuitas regiões no sul do Brasil passaram pelo processo da Revolução Verde e utilizam modelos de produção convencionais, que têm como pressupostos a especialização da produção (monoculturas), o melhoramento genético (animais e plantas altamente produtivas), e a utilização de insumos industriais de alto custo (mecanização, adubos químicos, pesticidas, etc...).
650 $aPastagem
650 $aPlanta forrageira
650 $aSistema de produção
650 $aVaca leiteira
700 1 $aMAIXNER, A. R.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Biblioteca |
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Classificação |
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Registro |
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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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Circulação/Nível: |
Internacional - A |
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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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Embrapa Meio Ambiente (CNPMA) |
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