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"Sun Leaves" and "Shade Leaves": Differences in Convective Heat Dissipation
Author(s) -
Vogel Steven
Publication year - 1968
Publication title -
ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.144
H-Index - 294
eISSN - 1939-9170
pISSN - 0012-9658
DOI - 10.2307/1934517
Subject(s) - convection , air temperature , environmental science , botany , atmospheric sciences , horticulture , ecology , biology , meteorology , geography , geology
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.