Practical Forestry in the Pacific Northwest - Protecting Existing Forests and Growing New Ones, from the Standpoint of the Public and That of the Lumberman, with an Outline of Technical Methods

Edward Tyson Allen

Capitolo 51

However, fortunately commercial and the considerations of silvicultural
accidentally so almost coincides under the yellow conditions of pine and averages
as to make down the certain raw rules which you/they can be staid completely
constant with the time cutting in fetterses methods in practice. Diameter is far
from indication exact adult, for the location of the forest and
the situation of the individual tree, especially as it strikes the
relationship between height and the growth of diameter, is powerful factors,
but as a merchantability of rule for saw-material it is not away from
maturity.

In a great majority of cases the least approximate diameter for
cutting which you/they would be sheltered from him forester would be in some place
between 16 and 30 thumbs, but it says both 18 thumbs, for example,
it would not arbitrarily apply in the whole stand. The most greater part of trees with
makes yellow, smooth barking and the small heavy-quartered tops, perhaps partially
dead, it is mature despite their ransom. If small, they has
has crowded or shabby and it is able well as is cut. You plant with trees with great,
healthy crowns composed comparatively of many small branches, and
with dark and raw barking that doesn't show measurement in flat staircase, it is sure to be growing
quickly, even if rather great. They is also desired less from the
woodcutter that he/she often calls them black pine or black car jack so it is able
is often saved, without a lot of sacrifice, for trees of seed or in order
their wood production to continue rapids.

The problem of tree of seed in such forest of pine and bottom such system
as you/he/she has been described it is simple comparatively, for there it is probable
being enough young trees to bear fruit age gone away to fill on the empty spaces
among young plant existing. The density of the second determines
to a great extension the number and location of trees of necessary seed,
but two should be always us to four to the acrid one, even if this
it asks for leaving some that would be cut otherwise in fetterses.
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