Dual-Purpose Pines. Page: 4
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Goodpractice in turpentining trees.
Light chipping keeps the face low
and prolongs the working period of
the tree up to 20 years or more.
before the trees are large enough to be turpentined. These early thinnings
are necessary to relieve crowded conditions and to permit the remaining
trees in the stand to grow at a faster rate. The first thinning should be
made after the trees reach heights of about 10 to 20 feet and diameter's of
3 inches or more (measured at breast height). An average of from 400 to
500 trees per acre, well-spaced and of proper size, should be left. Another
thinning should be made when the trees reach about 6 inches in diameter,
thus reducing the stand to from 200 to 300 trees per acre. This thinning
obviously is made prior to turpentining. If products such as fuel wood
or pulpwood are secured from this later thinning, they will provide the
first economic returns from the timber farm.
Starting a New Stand
The mature crop trees should be cut with care so as to provide a new
stand. Not all the trees should be cut at one time. The stand should be
cut quite heavily by taking out one-half to three-fourths of all the trees,
leaving an open stand of seed trees to be cut a few years later. This
encourages the seeding of a good stand of young trees.
The best practice for securing a stand of young trees to replace the old
stand is to do the cutting at a time when the mature trees have an abundant
seed crop, in the late fall or winter of a good seed year. The logging
operations will work the seed into the top of the soil, where it will germinate
either in the late fall or early spring.
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United States. Forest Service. Division of State and Private Forestry. Dual-Purpose Pines., book, January 1939; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1813/m1/4/: accessed July 20, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.