Precommercial thinning in a northern conifer stand: 18-year results

Four levels of precommercial thinning were applied with and without fertilization in a young, even-aged stand of northern conifers in east-central Maine. After 18 years, precommercial thinning resulted in longer and wider crowns and greater survival, growth, and yield of selected crop trees compared...

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Bibliographic Details
Published in:Forestry chronicle 1999-12, Vol.75 (6), p.967-972
Main Authors: Brissette, J.C, Frank, R.M. Jr, Stone, T.L, Skratt, T.A
Format: Article
Language:English
Subjects:
application rate
botanical composition
crown
diameter
forests
growth
height
interactions
limestone
mortality
plant characteristics
stand density
thinning
tree age
urea
yields
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Summary:Four levels of precommercial thinning were applied with and without fertilization in a young, even-aged stand of northern conifers in east-central Maine. After 18 years, precommercial thinning resulted in longer and wider crowns and greater survival, growth, and yield of selected crop trees compared to untreated controls. Growth and yield were greater with uniform spacing at approximately 2.4 x 2.4 m and 1.5-m row thinning without crop-tree release in residual strips than with row thinning without crop-tree release. Control of stand species composition was greatest with uniform spacing. Fertilization had no significant effect.
ISSN:0015-7546
1499-9315
DOI:10.5558/tfc75967-6