01772naa a2200325 a 450000100080000000500110000800800410001910000210006024501040008126000090018552008540019465000200104865000190106865000150108765000210110265000180112365000180114165000240115965000220118365000140120565000170121965300230123665300260125970000200128570000190130570000190132470000220134370000180136577300630138320056222015-01-15       2010    bl uuuu     u00u1 u    #d1 aCABRAL, O. M. R.  aThe energy and water balance of a Eucalyptus plantation in southeast Brazil.h[electronic resource]  c2010  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.  aEddy covariance  aEnergy balance  aEucalyptus  aEvaporation rate  aForest canopy  aWater balance  aBalanço de energia  aBalanço hídrico  aEucalipto  aEvaporação  aCanopy conductance  aEucalyptus plantation1 aROCHA, H. R. da1 aGASH, J. H. C.1 aLIGO, M. A. V.1 aFREITAS, H. C. de1 aTATSCH, J. D.  tJournal of Hydrology, Amsterdamgv. 388, p. 208-216, 2010.