The following message with a request for research info was forwarded to me
by
one of my colleagues.
Can anyone help Mr. Herbert White? If so please contact him directly.
Thanks
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From: Herbert White <hwwhite@freenet.scri.fsu.edu>
Subject: Understory Growth Reduction of Longleaf and Slash Pine
Does Anyone have information on the understory growth
reduction to be expected by retaining parent trees for a extended
period of time? I am specifically interested in height reductions in
longleaf pine.
Background : I am trying to build a growth model that would
account for the reduction caused by indefinately leaving the parent
trees on a shelterwood or seedtree cut. I have been using a
research paper written by Donald P. Feduccia, "Regenerating
Slash Pine Naturally Without Suppression" Southern Journal of
Applied Forestry, 1978 but can't find anything about longleaf
pine. I found a straight line effect on slash pine showing the
following:
Residual Average Percent of
Trees/Ac. Height Zero Residual Trees/Ac.
0 49.5 100%
5 47.6 96%
10 45.7 92%
20 41.2 83%
I am looking for research like this in Longleaf pine can you help!
Maybe there is some info out there on the relative tolerance to
shade between Slash and Longleaf pine that might shed some
light on this subject.
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