"Sun Leaves" and "Shade Leaves": Differences in Convective Heat Dissipation

Vogel, Steven

"Sun Leaves" and "Shade Leaves": Differences in Convective Heat Dissipation

1968

Vogel, Steven

Temperatures of radiantly heated sun and shade leaves of white oak (Quercus alba L.) were measured in a low—speed wind tunnel. In either still air or a gentle updraft the difference between ambient and leaf temperature is about 20% less for the sum leaves than for the shade leaves. Consequently the former are more effective heat dissipaters.

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