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Does Prescribed Burning Have a Place in Regenerating Uneven-Aged Loblolly-Shortleaf Pine Stands?

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Abstract:

Before the 1981 growing season, a study was installed in southeastern Arkansas to examine the effects of three dormant-season burn intervals (low, moderate, and high frequency) and an unburned treatment on natural regeneration in uneven-aged stands of loblolly and shortleaf pines (Pinus taeda and P. echinata, respectively). Merchantable pine basal areas were maintained by harvesting on a 5 or 6 yr cutting cycle. When the study began, hardwoods greater than 1 in. dbh were injected with herbicide on all plots. During the next 19 yr, there were eight high frequency, four moderate frequency, and three low frequency prescribed burns. In 1991, the unburned plots received a single, broadcast-herbicide treatment. Single-tree selection harvests were conducted in 1982, 1987, 1992, and 1997. Through 1999 (19 yr), herbicides applied at 10 yr intervals were more effective than dormant-season burns for enhancing the growth of submerchantable pines. Although recurring winter burns tended to stop the progression of both pines and hardwoods from seedling to sapling size classes, the data suggest that properly timed dormant-season burns might be used to secure natural pine regeneration in selection management. South. J. Appl. For. 26(3):117–123.

Keywords: P. echinata; Pinus taeda; crown scorch; environmental management; forest; forest management; forest resources; forestry; forestry research; forestry science; natural resource management; natural resources; quadrat stocking; selection silviculture; stand density

Document Type: Miscellaneous

Affiliations: Southern Research Station, USDA Forest Service, P.O. Box 3516 Monticello, AR, 71656-3516, mshelton@fs.fed.us

Publication date: August 1, 2002

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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