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Growth Stresses and Strains in Trees (Paperback, Softcover reprint of the original 1st ed. 1987)
Loot Price: R3,681
Discovery Miles 36 810
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Growth Stresses and Strains in Trees (Paperback, Softcover reprint of the original 1st ed. 1987)
Series: Springer Series in Wood Science, 3
Expected to ship within 10 - 15 working days
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Although over 40 years have passed since Jacobs (1945) convincingly
established the basic radial pattern of residual growth stress in
growing trees, yet this phenomenon is still not widely appreciated
in wood science and technology circles. This is in spite of the
fact that the presence of these stresses of sizeable magnitudes has
long been recognized as a primary cause of shakes and splits in
logs as well as the warping of lumber sawn in the green condition.
The presentation of the subject of growth stresses in trees
presents some special problems due to the wide range of specialists
who potentially might have an interest in the subject. For example,
tree physiologists interested in questions such as the relation of
mechanical stress to stem taper and the role of reaction wood and
gravity forces in determining tree crown form encounter growth
stress models. Silvi culturists interested in the relation
ofthinning practices to wood quality find that wood properties are
correlated with growth stress levels which are in turn
significantly changed by cutting practices. Wood techno logists
interested in the relation of residual growth stress gradients in
green logs to the dimensional quality of sawn and seasoned lumber
are forced to take a more quantitative approach to the effect of
growth stresses than might have been the case in the past."
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