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AGE 
CLASSES WELL STOCKED MEDIUM STOCKED eee 
(YEARS ) 
Gy 
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30 & 40 
50 & 60 
70 & 80 
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DISTRIBUTION OF AGE CLASSES (PERCENT) 
Ficure 9.—Age class and stocking of immature conifer stands in western Washington and western Oregon 
The seedling and sapling stands (less than 6 
inches in d. b. h.) range from 1 to about 30 years 
in age and cover 2.1 million acres; those on a few 
thousand acres of poor land are as old as 50 years. 
Roughly half the area of this type has been cut 
over (fig. 10). The condition of these stands is far 
from satisfactory; only a little more than a third of 
the area is well stocked. 
SECOND-GROWTH PULPWOOD 
Second-growth Sitka spruce (types 12 and 13) 
occupies about 60,000 acres. Usually it occurs as 
mixed stands near the coast and ranges in age 
from 1 to 100 years. The stands occupy very 
productive sites, their stocking averages better 
than that of second-growth Douglas-fir stands, and 
their yields are higher. 
The western hemlock types (15 and 16) are the 
most important of the second-growth types other 
than Douglas-fir, and have a total area of 609,000 
The stands are usually even-aged and pure 
Age, stocking, and site being 
acres. 
in composition. 
equal, higher yields are obtained from western 
hemlock second growth than from Douglas-fir 
second growth. There has been little cutting on 
these stands, although in the past few years small 
areas have been logged from pulpwood. 
Balsam fir-mountain hemlock less than 16 inches 
d. b. h. (type 24) covers 274,000 acres, practically 
all of which is on old burns at high elevations on 
