[Ccpg] Pioneer Forest Ozarks Missouri
ccpg-admin at arashi.com
ccpg-admin at arashi.com
Tue Jan 1 12:52:49 PST 2002
hi Everyone
discovered this story about Pioneer Forest in the Antiochian Fall
2001 the alumi newsletter of Antioch College Yellow Springs Ohio . An
amazing story of loading practise sustainability for over 50 years by one
Leo Drey .
wes
Pioneer Forest http://www.pioneerforest.com/PF_Home.html
Pioneer Forest is a large, privately-owned forest located in the
heart of the Missouri Ozarks.
We have used single-tree selection harvests in managing the forest
for more than half a century to restore
high quality oak-hickory forests, establish truly sustainable
harvests, and protect significant natural
communities.
We offer free initial consultations and contracting for forest
management on your land if you are located
in the Ozark region of Missouri.
In addition to our own research efforts we invite others to
consider our large forested setting for your own
research project.
We have natural areas and forest reserves throughout the forest
which are exemplary plant and animal
communities, represent the intrinsic character of these Ozark
landscapes, and which protect rare species.
Pioneer Forest offers outstanding recreational opportunities for
day-hikes, forest drives, overnight
backpacking, and long-distance hiking.
More About Pioneer Forest...
Pioneer Forest is part of the oak, hickory, and pine forests of the
Missouri Ozarks. This region is part of
the most extensive elevated landscape between the Appalachian
Mountains to the east and the Rocky
Mountains to the west. The topography here is largely erosional with
the greatest relief (generally 700
feet) occurring along the major rivers. Bedrock here is dominated by
the more soluble dolomites,
limestones, and sandstones and as a result includes many classic karst
features. Situated in an area of
spectacular springs, towering bluffs, losing streams, and numerous
caves. these lands include
significant portions of the spring-fed watersheds of the Jacks Fork
and Current rivers.
Beginning in 1951, St. Louis businessman Leo Drey began to acquire
lands in the Ozarks in an effort to
demonstrate that taking better care of forests would produce lasting
and economically beneficial
results. When National Distillers, a private company with lands
located in the Ozarks, decided to
liquidate its holdings in 1954, it sold approximately 90,000 acres of
land to Leo Drey, who continued to
purchase other forestland in the Ozarks for Pioneer Forest.
For more than half a century, Pioneer Forest has restored these Ozark
woodlands through
conservative, natural forest management, and has preserved
ecologically important areas and notable
landscape features. Altogether there are nearly 160,000 acres in this
unique, privately-owned land base.
PRIMER ON SINGLE-TREE SELECTION FOREST HARVEST
Single-tree selection harvesting is one reproduction cutting method
used when applying
uneven-aged techniques. Using this conservative harvesting technique,
both managers and
landowners are able to continuously maintain a diverse and multi-aged
forest (a forest with three or
more age classes) while also deriving income from periodic harvests.
This forest management
technique provides a dynamic opportunity for forest development and
succession which is essential
for the continuity of the forest. Applying single-tree selection as
part of an uneven-aged forest
management program most closely mimics the natural process which occurs
when a single tree or
small group of trees in the forest succumbs to natural mortality. Such
small-scale disturbances as
lightning strikes or insect attack, are the most common type of
disturbance affecting
late-successional forests. It has been the only forest management
technique practiced on Pioneer
Forest since the 1950's.
When to Harvest
Harvests on Pioneer Forest generally occur when a particular stand
achieves a closed canopy,
visible signs of growth have slowed, and individual trees within both
the overstory and understory
express stress through evidence of such characteristics as crowding,
dieback, or disease. The
current harvest interval is about 20 years in length which allows for
removal of some of the growth as
well as trees exhibiting the noted characteristics of stress. Harvests
remove approximately 40% of
an area's standing volume. The result is that as many or more trees of
all sizes and age classes are
left standing as were cut during the harvest. This system of management
allows for the retention of a
forest on every acre, even immediately after harvest.
Commercial contracts are generally made directly with mills and include
all marked trees within a
given area. Careful layout insures protection of standing trees as cut
logs are hauled out of the
woods. Marking, cutting, and skidding begin at the bottom of a hillside
and proceed to the top,
resulting in the least damage to the trees left uncut (the "leave
trees"). Shortleaf pine is marked from
diameters greater than 8 inches at breast height (dbh) and is scaled in
two-foot increments to a 6"
upper stem diameter. Hardwoods are marked from diameters greater than
10" dbh and are scaled
in two-foot increments to a 10" upper diameter.
Which Trees are Left and Which Trees are Harvested
Every tree on every acre of a scheduled cut is examined during the
marking in order to determine
whether it will be left or harvested. This is done because the trees
that remain in the forest are a
higher priority than the trees cut in our conservative uneven-aged
forest management. The process of
choosing trees to harvest is not a complicated one, but there are
several important, and
easy-to-apply principles which are considered while conducting a
harvest in any given area. The
instructions of Guldin and Baker (1998) for marking crews in southern
pine forests hold just as true
for Missouri Ozark forests: the simple concept is "that marking crews
cut the worst trees and leave
the best within each diameter or product class and among classes if
necessary."
As a first step, marking crews identify specific trees which are to be
left. Leave trees are the
healthiest trees on a site, expressing the greatest potential for
growth and the strongest physical
characteristics, but also are species which are best suited to a
particular site. For example, a healthy
shortleaf pine growing on a south- or west-facing slope, or a white oak
tree growing on a north- or
east-facing slope would be ideal candidates for leave trees. Walking
through the woods, the tree
marker is constantly monitoring individual tree quality, species, and
site conditions while moving
through an area and across a variety of landscape conditions. The
overall objective for a marker is to
match the growing stock to the site, giving the leave trees room to
grow by removing the poorer
quality trees around them. By the same standard, even poorer quality
trees, those which would
otherwise be cut, may be left on site in order to meet a particular
objective. (For example, post oaks
are often left for wildlife as mast-producing trees; other trees are
often left for den trees).
Generally, harvests on Pioneer Forest remove between 12 to 15 trees per
acre. We begin by
marking the smallest and poorest quality trees first. Individual trees
may be marked for cutting based
upon the same factors, which change depending upon the aspect, slope,
physical condition of a tree,
and past history of the area. There are many variables to consider when
marking trees, not simply
size. These include poor form, vigor, disease, and damage. The general
spacing of the trees as
evidenced on the ground but often more importantly, observed in the
forest canopy is important as
well. A marked tree which is harvested leaves a hole or opening in the
canopy. This opening in the
canopy provides an opportunity within the forest for the best trees
which remain to continue their
growth. Leave trees benefit from the small gap which adds light and
reduces competition for space,
water, and soil nutrients. These holes or canopy gaps are sufficient
for sunlight to reach the forest
floor. This sunlight allows seedlings to germinate and permits other
saplings and understory trees to
grow into this newly created space in the forest. During the 20-year
period between harvests, these
understory trees occupying the gap, grow into the canopy, and the
seedlings on the forest floor
develop into saplings. This progressive development of small trees into
large ones is critical to the
method's success.
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