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Long-Term Effects of Thinning and Pruning on the Quality, Quantity, and Value of Oak Lumber

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After 32 years, experimental plots established to examine thinning levels and pruning effects were harvested. Randomly selected trees in each treatment were felled and sawn into 4/4 lumber, and the lumber from each tree was tallied by grade. For black oak, the species that became largely relegated to the understory, thinning caused a significant increase in the total volume outturn with the greatest increase occurring in the lowest lumber grade (3B). For scarlet oak, the species that became primarily dominant and codominant, thinning increased the total lumber yield per tree with most of the increase accumulating in the lumber grades #1C and #2C. Pruning did not affect the quantity or quality of lumber outturn in either species. North. J. Appl. For. 5:258-260, December 1988.

Document Type: Journal Article

Affiliations: University of Missouri, School of Forestry, Fisheries, and Wildlife, 1-31 Agriculture Bldg., Columbia, MO 65211

Publication date: December 1, 1988

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Northern Journal of Applied Forestry covers northeastern, midwestern, and boreal forests in the United States and Canada.
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