2014
DOI: 10.5902/1980509813329
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Balanço hídrico e de energia para plantios de eucalipto com cobertura parcial do solo

Abstract: RESUMOPlantios com idade inicial de desenvolvimento apresentam descontinuidade na cobertura do solo, tendendo a apresentar maior exposição do dossel ao vento e à radiação solar, o que altera as interações solo-plantaatmosfera. O objetivo deste trabalho foi estudar os componentes dos balanços hídricos e de energia ao longo do primeiro ano de desenvolvimento do eucalipto na região da planície costeira brasileira. O sítio experimental está localizado em uma área pertencente à empresa Fibria Celulose no município … Show more

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Cited by 8 publications
(6 citation statements)
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“…The model accurately estimated values of available soil water (R 2 = 0.9, RMSE = 5.8 mm or 11%), with performance similar to that observed in the work of Almeida, Ribeiro, and Leite (2013), and in Reis et al (2014), in which growth and water balance were modeled in plantations of E. grandis located on the east coast of Brazil. The good performance of the water balance model indicates that the estimated values of evapotranspiration were not overestimated.…”
Section: Resultssupporting
confidence: 66%
“…The model accurately estimated values of available soil water (R 2 = 0.9, RMSE = 5.8 mm or 11%), with performance similar to that observed in the work of Almeida, Ribeiro, and Leite (2013), and in Reis et al (2014), in which growth and water balance were modeled in plantations of E. grandis located on the east coast of Brazil. The good performance of the water balance model indicates that the estimated values of evapotranspiration were not overestimated.…”
Section: Resultssupporting
confidence: 66%
“…O Rn da floresta nativa e dos plantios de eucalipto variou em média entre 2% e 8% no período chuvoso e entre 3% e 9% no período seco, respectivamente. Houve ainda pouca alteração no Rn entre as idades e as variedades E. urophylla e E. urograndis, provavelmente devido ao semelhante albedo entre os plantios clonal e devido à uniformidade do plantio e ausência de descontinuidade da cobertura dos talhões (REIS et al, 2014). Em contrapartida, o Rn do solo exposto foi 13%(chuva) e 20% (seca) menor que na floresta nativa (Tabela 2 e Figura 4(a)).…”
Section: Resultsunclassified
“…In the growth phase, the plant uses more significant portions of energy and raises the rates of ETR (REIS et al, 2014). Eucalyptus plantations with a large structural/phenological size and welldefined leaf architecture, present determinant characteristics for these higher rates (XAVIER et al, 2002).…”
Section: Eucalyptusmentioning
confidence: 99%