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Selection Thinning Increases Slash Pine Size and Quality

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Abstract:

A single selection thinning of slash pine (Pinus elliottii Engelm. var. elliottii) from 117 to 75 ft.²/A of basal area at age 12 increased mean d. b. h. one inch and sawtimber and pole volume 21 percent over the unthinned check at age 27. Total merchantable cubic-foot volume was not significantly affected by thinning over a wide range of treatments; however, repeated cutting to 50 ft²/A of basal area appeared to reduce merchantable volume. Volume advantage of the unthinned plots disappeared, due to high mortality (1,058 ft³/A) between age 17 and 27. Thinning to a stocking of 50 ft²/A reduced mortality to 22 percent of the check.

Document Type: Journal Article

Affiliations: Project Leader, Cultural Treatments Research, International paper Company, Southlands Experiment Forest, Bainbridge, Georgia

Publication date: November 1, 1979

More about this publication?
  • 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 Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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