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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
06/01/1997 |
Data da última atualização: |
16/01/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ROBERTS, J.; CABRAL, O. M. R.; FISCH, G.; MOLION, L. C. B.; MOORE, C. J.; SHUTTLEWORTH, W. J. |
Afiliação: |
Institute of Hydrology; EMBRAPA-CPAA; INPE.; OSVALDO M. R. CABRAL, CPAA. |
Título: |
Transpiration from an Amazonian rainforest calculated from stomatal conductance measurements. |
Ano de publicação: |
1993 |
Fonte/Imprenta: |
Agricultural and Forest Meteorology, v. 65, n. 3-4, p. 175-196, 1993. |
DOI: |
http://dx.doi.org/10.1016/0168-1923(93)90003-Z |
Idioma: |
Inglês |
Conteúdo: |
A multi-layer combination equation has been used to calculate transpiration from a tropical rainforest in the central Amazon, Brazil. The five-layer formulation used through-canopy measurements of temperature and humidity deficit with leaf stomatal and boundary layer conductances scaled up to canopy layer values used a profile of canopy leaf area index derived from the literature. Net radiation input to each layer values was estimated from an above canopy measurement using an extinction function and leaf area index. Transpiration calculated for hourly and daily periods in a range of seasonal condition agreed well with those measured directly with and eddy correlation device. Four simplified forms of the transpiration calculation were also compared with the direct measurement. These simplified forms used the above-canopy or the average of the through-canopy values of weather variables and use either the average of leaf conductances multiplied by total leaf area index or the average of the layer conductances. These simplified forms of the tanspirations calculation gave poorer agreement with measured transpiration. |
Palavras-Chave: |
Amazonas; Brasil; Carbon dioxide content; Floresta tropial umida; Radiation balance; Transpiracao; Tropical rain forest. |
Thesagro: |
Dióxido de Carbono; Energia; Evapotranspiração; Meteorologia; Radiação. |
Thesaurus Nal: |
energy; evapotranspiration; meteorology; transpiration. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146163/1/S7906.pdf
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Marc: |
LEADER 02232naa a2200385 a 4500 001 1667264 005 2017-01-16 008 1993 bl uuuu u00u1 u #d 024 7 $ahttp://dx.doi.org/10.1016/0168-1923(93)90003-Z$2DOI 100 1 $aROBERTS, J. 245 $aTranspiration from an Amazonian rainforest calculated from stomatal conductance measurements. 260 $c1993 520 $aA multi-layer combination equation has been used to calculate transpiration from a tropical rainforest in the central Amazon, Brazil. The five-layer formulation used through-canopy measurements of temperature and humidity deficit with leaf stomatal and boundary layer conductances scaled up to canopy layer values used a profile of canopy leaf area index derived from the literature. Net radiation input to each layer values was estimated from an above canopy measurement using an extinction function and leaf area index. Transpiration calculated for hourly and daily periods in a range of seasonal condition agreed well with those measured directly with and eddy correlation device. Four simplified forms of the transpiration calculation were also compared with the direct measurement. These simplified forms used the above-canopy or the average of the through-canopy values of weather variables and use either the average of leaf conductances multiplied by total leaf area index or the average of the layer conductances. These simplified forms of the tanspirations calculation gave poorer agreement with measured transpiration. 650 $aenergy 650 $aevapotranspiration 650 $ameteorology 650 $atranspiration 650 $aDióxido de Carbono 650 $aEnergia 650 $aEvapotranspiração 650 $aMeteorologia 650 $aRadiação 653 $aAmazonas 653 $aBrasil 653 $aCarbon dioxide content 653 $aFloresta tropial umida 653 $aRadiation balance 653 $aTranspiracao 653 $aTropical rain forest 700 1 $aCABRAL, O. M. R. 700 1 $aFISCH, G. 700 1 $aMOLION, L. C. B. 700 1 $aMOORE, C. J. 700 1 $aSHUTTLEWORTH, W. J. 773 $tAgricultural and Forest Meteorology$gv. 65, n. 3-4, p. 175-196, 1993.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Registros recuperados : 5 | |
1. | | ROBERTS, J.; CABRAL, O. M. R.; FISCH, G.; MOLION, L. C. B.; MOORE, C. J.; SHUTTLEWORTH, W. J. Transpiration from an Amazonian rainforest calculated from stomatal conductance measurements. Agricultural and Forest Meteorology, v. 65, n. 3-4, p. 175-196, 1993.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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2. | | SHUTTLEWORTH, W. J.; GASH, J. H. C.; LLOYD, C. R.; MOORE, C. J.; ROBERTS, J.; MOLION, L. C. B.; NOBRE, C. A.; SÁ, L. D. de A.; MARQUES FILHO, A. de O.; FISCH, G.; JANUÁRIO, M.; FATTORI, A. P.; RIBEIRO, M. de N. G.; CABRAL, O. M. R. Amazonian evaporation. Revista Brasileira de Meteorologia, v. 2, n. 1, p. 179-191, jun./dez. 1987.Tipo: Artigo em Periódico Indexado |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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3. | | SHUTTLEWORTH, W. J.; GASH, J. H. C.; LLOYD, C. R.; MOORE, C. J.; ROBERTS, J.; MARQUES FILHO, A. de O.; FISCH, G.; SILVA FILHO, V. de P.; RIBEIRO, M. de N. G.; MOLION, L. C. B.; SÁ, L. D. A. de; NOBRE, J. C.; CABRAL, O. M. R.; PATEL, S. R.; MORAES, J. C. de. Daily variations of temperature and humidity within and above Amazonian forest. Weather, v. 40, n. 4, p. 102-108, 1985.Tipo: Artigo em Periódico Indexado |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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4. | | SHUTTLEWORTH, W. J.; GASH, J. H. C.; LLOYD, C. R.; MOORE, C. J.; ROBERTS, J.; MARQUES FILHO, A. de O.; FISCH, G.; SILVA FILHO, V. de P.; RIBEIRO, M. de N. G.; MOLION, L. C. B.; SÁ, L. D. de A.; NOBRE, C. A.; CABRAL, O. M. R.; PATEL, S. R.; MORAES, J. C. de. Eddy correlation measurements of energy partition for Amazonian forest. Quarterly Journal of the Royal Meteorological Society, v. 110, p. 1143-1162, 1984.Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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5. | | SHUTTLEWORTH, W. J.; GASH, J. H. C.; LLOYD, C. R.; MOORE, C. J.; ROBERTS, J.; MARQUES FILHO, A. de O.; FISCH, G.; SILVA FILHO, V. de P.; RIBEIRO, M. de N. G.; MOLION, L. C. B.; SÁ, L. D. de A.; NOBRE, C.; CABRAL, O. M. R.; PATEL, S. R.; MORAES, J. C. de. Observations of radiation exchange above and below Amazonian forest. Quarterly Journal of the Royal Meteorological Society, v. 110, n. 466, p. 1163-1169, Oct. 1984.Tipo: Nota Técnica/Nota Científica |
Biblioteca(s): Embrapa Amazônia Ocidental. |
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Registros recuperados : 5 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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