Observational analysis reveals improved height growth in loblolly pine advance reproduction with lower overwood density, suggesting better outcomes over time.
On many dry sites of the lower Piedmont, loblolly pine seedlings become established under a wide range of overwood densities. The growth pattern of this advance reproduction is affected by overwood densities and seedling ages, and these effects continue for 1 to 3 years following removal of the pine overwood. Thereafter, height growth of advance reproduction progressively improves until near normal growth is attained in 4 to 5 years for stands which had less than 60 square feet basal area, and in 6 to 7 years for stands which initially had more than 60 square feet.
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Brender et al. (1969) studied this question.
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