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Thermal Energy Exchange of a Birch Tree and a Spruce Tree at Night
Author(s) -
Moen Aaron N.
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 - 10.2307/1933569
Subject(s) - crown (dentistry) , betula platyphylla , tree (set theory) , environmental science , ecology , picea abies , forestry , atmospheric sciences , botany , biology , geography , mathematics , physics , mathematical analysis , medicine , dentistry
Measurements of thermal radiation from a birch tree (Betula papyrifera) and a spruce tree (Picea glauca) were made on four clear summer nights at five distances from the base of each tree. Slightly higher net radiation values were observed under the spruce crown. A rapid reduction in net radiation was observed on the periphery of the crowns. Ecological relationships dependent on the distribution of infrared radiation are discussed.