Mechanism of Frost Crack Formation in Trees--A Review and Synthesis
Frost cracks, as separations in the radial-longitudinal plane of tree stems, result obviously from tension stress in the tangential direction of wood's annual rings. The main cause is "frost-shrinkage" due to freezing-out of cell well moisture into lumens of wood cells. Other causes are the more rapid cooling of the stem's outer wood, expansion of freezing water in cell lumens, and formation of ice lenses in wood. It is shown how healed wounds in stems function as stress raisers and trigger the cracking. Forest Sci. 29:559-568.
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Document Type: Journal Article
Affiliations: Associate Professor, Department of Forestry, University of Wisconsin, Madison, WI 53706
Publication date: 1983-09-01
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- Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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