
The Effects of Varying Degrees of Crown Scorching on Growth and Mortality of a Young Piedmont Loblolly Pine Plantation
- Thompson Tew, D.
N.C.S.U. Hardwood Research Cooperative - Jervis, Larry G.
College of Forest Resources, North Carolina State University, Raleigh, NC - Steensen, Donald H.J.
College of Forest Resources, North Carolina State University, Raleigh, NC
A 14-year-old loblolly pine plantation was prescribe burned in November 1981, resulting in crown scorch on many of the crop trees. This paper documents growth and mortality responses as a function of percent crown scorch through four growing seasons following the burn. Diameter growth was most severely affected in the first year following prescribe burning, with decreasing diameter growth as percent crown scorch increased. At the end of 4 years, trees with crowns scorched 61-80 and 81-100 percent had grown an average of 35 and 60 percent, respectively, less in diameter than did trees outside of the burned are. Height growth was most affected in the second and third seasons. Estimates of volume growth over the 4-year period indicate a loss of approximately 450 cubic feet per acre in this stand as a result of crown scorching.
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