Selection Management of Shortleaf Pine in the Ouachita Mountains

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Abstract
Selection (uneven-aged) management was instituted in shortleaf pine (Pinus echinata Mill.) stands on three experimental watersheds in the Ouachita Mountains. The residual stand structure imposed on each was 60 ft² of basal area, a maximum tree diameter of 18 in., and a q value of 1.2 for 1 in. dbh classes. Hardwoods were injected with herbicide before the initial harvest. The average annual per-acre growth for the three watersheds for the first 6-year management period was 2 ft² of merchantable basal area growth, 57 ft³ of merchantable volume growth, and sawtimber growth of 157 board feet for the Doyle rule, 231 bd ft for the Scribner rule, and 274 bd ft for the International ¼-inch rule. Basal area and merchantable volume growth were up to expectations, but sawtimber growth was not. Sawtimber growth may increase as stand structure improves under management. South J. Appl. For. 15(1):61-67.

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