Data/hora: 08/06/2024 08:36:57

Biblioteca(s): | Embrapa Meio Ambiente.
Data corrente: | 15/01/2015
Data da última atualização: | 15/01/2015
Autoria: | CABRAL, O. M. R.; ROCHA, H. R. da; GASH, J. H. C.; LIGO, M. A. V.; FREITAS, H. C. de; TATSCH, J. D.
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.
Título: | The energy and water balance of a Eucalyptus plantation in southeast Brazil.
Ano de publicação: | 2010
Fonte/Imprenta: | Journal of Hydrology, Amsterdam, v. 388, p. 208-216, 2010.
Idioma: | Inglês
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.
Palavras-Chave: | Canopy conductance; Eucalyptus plantation.
Thesagro: | Balanço de energia; Balanço hídrico; Eucalipto; Evaporação.
Thesaurus Nal: | Eddy covariance; Energy balance; Eucalyptus; Evaporation rate; Forest canopy; Water balance.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (13445-1) - UPC - AP - DD -  -  -  - DIS