2005
DOI: 10.1061/(asce)0733-9437(2005)131:1(14)
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Estimating Evaporation from Bare Soil and the Crop Coefficient for the Initial Period Using Common Soils Information

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Cited by 100 publications
(72 citation statements)
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“…In summer, about 10 mm of water can be rapidly evaporated from the surface layer of a silt loam after the layer has been completely wetted (Allen et al 2005 and references therein). Early historic maize plant densities imply that only ∼11% of the soil surface will be shaded by maize at noon (Benson 2010); thus, bare-soil evaporation will be relatively high under these conditions.…”
Section: Precipitationmentioning
confidence: 99%
“…In summer, about 10 mm of water can be rapidly evaporated from the surface layer of a silt loam after the layer has been completely wetted (Allen et al 2005 and references therein). Early historic maize plant densities imply that only ∼11% of the soil surface will be shaded by maize at noon (Benson 2010); thus, bare-soil evaporation will be relatively high under these conditions.…”
Section: Precipitationmentioning
confidence: 99%
“…Na fase inicial de desenvolvimento, a evaporação contribui com a maior parcela da evapotranspiração (Allen et al, 1998;Lyra et al, 2007b;Lyra et al, 2010). Assim, K c nessa fase depende basicamente da magnitude e da frequência dos eventos de molhamento (irrigação ou chuva), do tipo de solo (propriedades físico-hídricas) e da demanda atmosférica (ET o Os fatores relacionados a evaporação do solo induzem elevada variabilidade ao coeficiente de cultivo na fase inicial de desenvolvimento (K c_ini ), com extremos entre 0,1 e 1,15 (Allen et al, 1998;Soares et al, 2001;Allen et al, 2005a). No caso da cana-de-açúcar, foram observadas diferenças superiores a 40% entre K c_ini tabelado no boletim FAO-56 e os valores ajustados (Lyra et al, 2007a;Santos et al, 2009).…”
Section: Introductionunclassified
“…For bare soil, K cmax becomes approximately 1.15 (Allen et al, 1998(Allen et al, , 2005c. The term K r is a reduction coefficient related to the soil water content; it has a different formulation for soil water content of stages I and II:…”
Section: Allenmentioning
confidence: 99%