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height growth of about
about on e
half of that in the coast dist
circumstances
ouglas fir
urop
an timb
r age diam
the av
r icts is given as abo
dist
t
It follows that the volume increment is very great
xperi
nce up to dat
of
urop
an t
data
ill show
by
author in
of plantation
put out
umber of t
M ean diam
ean height
V
ol ume in the
material under
M ean a
equal
The plantation was measured by
r esult
follo
ing
of plan tation
s
imated volume pe
verage annual production
h e
T
arl of
in
when
of plan tation
V
olum
equal to an average annual p
The above figures do not include
r ding which no data ar e available
r
ga
a t
estimated
T
NO
BR
a s far as
if planted in suitable localities
r tre
s
ter of matu
shows that it exceed s t
r ees to a considerable extent
yielded the following
r s )
yea
r ees per ac r
r
te
r o und
nual production
cubic feet quarter girt
M an sfield had
f
llowing data w
timber pe
per cent
ITI
H FOR
inches on an annual average
xperienc
r ee also attai
t
r e tre
s
t
fe
t
an d in
plantation
y
ars ( age of the plants w
excluding all
inches diam
r acre
whole plantation m easured
r e Obtained
r acre
r od uction of
h e pres
of t
T T R
r icts
goes at present
outg
s a great diamete
fe
t high
M ontana as about
h e fastest g r o
as
r efully measu r
ca
ata
ter
r ement
m easu
l
es in
cubic f
yi
ld of
h ey may
t
nt
tock
so that the total
or
nd
r any
r ows all
r
in
coast
ing
following
d
h
n
cubic feet
with the
y
ars
cubic f
et
y
ars
cubic f
t
t
hinnings
h ow
r
ve
be
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