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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
15/01/2015 |
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Data da última atualização: |
15/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CABRAL, O. M. R.; ROCHA, H. R. da; GASH, J. H. C.; LIGO, M. A. V.; FREITAS, H. C. de; TATSCH, J. D. |
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Afiliação: |
OSVALDO MACHADO RODRIGUES CABRAL, CNPMA; HUMBERTO RIBEIRO DA ROCHA, IAG-USP; JOHN H GASH, Centre for Ecology and Hydrology; MARCOS ANTONIO VIEIRA LIGO, CNPMA; HELBER CUSTODIO DE FREITAS, IAG-USP; JONATAN DUPONT TATSCH, IAG-USP. |
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Título: |
The energy and water balance of a Eucalyptus plantation in southeast Brazil. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Journal of Hydrology, Amsterdam, v. 388, p. 208-216, 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The eddy covariance method was used to measure energy and water balance of a plantation of Eucalyptus (grandis x urophylla) hybrids over a 2 year period. The average daily evaporation rates were 5.4 (±2.0) mm day-1 in summer, but fell to 1.2 (±0.3) mm day-1 in winter. In contrast, the sensible heat flux was relatively low in summer but dominated the energy balance in winter. Evaporation accounted for 80% and 26% of the available energy, in summer and winter respectively. The annual evaporation was 82%(1124 mm) and 96% (1235 mm) of the annual rainfall recorded during the first and second year, respectively. Daily average canopy and aerodynamic conductance to water vapour were in the summer 51.9 (±38.4) mm s-1 and 84.1 (±25.6) mm s-1, respectively; and in the winter 6.0 (±10.5) mm s-1 and 111.6 (±24.6) mm s-1, respectively. |
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Palavras-Chave: |
Canopy conductance; Eucalyptus plantation. |
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Thesagro: |
Balanço de energia; Balanço hídrico; Eucalipto; Evaporação. |
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Thesaurus Nal: |
Eddy covariance; Energy balance; Eucalyptus; Evaporation rate; Forest canopy; Water balance. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01772naa a2200325 a 4500
001 2005622
005 2015-01-15
008 2010 bl uuuu u00u1 u #d
100 1 $aCABRAL, O. M. R.
245 $aThe energy and water balance of a Eucalyptus plantation in southeast Brazil.$h[electronic resource]
260 $c2010
520 $aAbstract: The eddy covariance method was used to measure energy and water balance of a plantation of Eucalyptus (grandis x urophylla) hybrids over a 2 year period. The average daily evaporation rates were 5.4 (±2.0) mm day-1 in summer, but fell to 1.2 (±0.3) mm day-1 in winter. In contrast, the sensible heat flux was relatively low in summer but dominated the energy balance in winter. Evaporation accounted for 80% and 26% of the available energy, in summer and winter respectively. The annual evaporation was 82%(1124 mm) and 96% (1235 mm) of the annual rainfall recorded during the first and second year, respectively. Daily average canopy and aerodynamic conductance to water vapour were in the summer 51.9 (±38.4) mm s-1 and 84.1 (±25.6) mm s-1, respectively; and in the winter 6.0 (±10.5) mm s-1 and 111.6 (±24.6) mm s-1, respectively.
650 $aEddy covariance
650 $aEnergy balance
650 $aEucalyptus
650 $aEvaporation rate
650 $aForest canopy
650 $aWater balance
650 $aBalanço de energia
650 $aBalanço hídrico
650 $aEucalipto
650 $aEvaporação
653 $aCanopy conductance
653 $aEucalyptus plantation
700 1 $aROCHA, H. R. da
700 1 $aGASH, J. H. C.
700 1 $aLIGO, M. A. V.
700 1 $aFREITAS, H. C. de
700 1 $aTATSCH, J. D.
773 $tJournal of Hydrology, Amsterdam$gv. 388, p. 208-216, 2010.
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