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Shrinkage of White Oak as Affected by Position in the Tree

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This study, together with those previously made on overcup oak, indicate that the shrinkage of the wood increases with its age in the tree; that is, the wood near the center and base of the tree shrinks more in the older trees than in the younger ones. Why that is the case has not been determined, but the indications are that the tendency to collapse, which here is included as shrinkage, increases as the wood grows older, possibly on account of the infiltration of additional material with time in the fine interstices of the pit membranes thereby making them still smaller and more resistant to the withdrawal or rupture of water films in them.

Document Type: Journal Article

Affiliations: U. S. Forest Products Laboratory, Maintained at Madison, Wis., in cooperation with the University of Wisconsin

Publication date: July 1, 1939

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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