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Potential Tree Grade of Young Red Oaks Growing in Even-Aged Stands

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A measure termed clear volume index, based on the percentage of cubic-foot volume under clear faces in 4-foot sections of the stem, was devised for estimating the potential grade of trees smaller than sawtimber size. It can be compared in certain respects with standard log or tree grades. Approximately 50 percent of the variation in clear volume index of individual red oaks, Zuercus rubra L., was found to be directly proportional to the degree of crown competition or stand density surrounding the sample tree. From this relationship an estimate was made of the degree of crown competition essential to the production of young trees with a desirable clear volume index.

Document Type: Journal Article

Affiliations: Associate Professor, School of Forestry, The Pennsylvania State University

Publication date: September 1, 1964

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