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Product-Class Proportions for Thinned and Unthinned Loblolly Pine Plantations

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Data from thinned and unthinned loblolly pine plantations on cut-over, site-prepared lands were used to develop equations to predict the proportions of trees by dbh class that qualify as peelers, sawtimber, or pulpwood. This analysis showed that proportion of peelers increased with thinning but proportion of sawtimber (which included chip-n-saw material) remained relatively constant by dbh class regardless of thinning intensity. Equations were developed to predict the proportion of sawtimber by dbh class with data from all thinning intensities (including no thinning) combined. A constrained equation was fitted to predict proportion of peelers by dbh class for unthinned or thinned stands. South. J. Appl. For. 13(4):192-195.
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Document Type: Journal Article

Affiliations: Saasveld Forestry Research Centre, Private Bag X6515, 6530 George, South Africa

Publication date: 1989-11-01

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