Taste 8.—Economic availability classification of nonreserved saw timber in the Douglas-fir region, by ownership, forest-survey unit, 
and species class—Continued 
pn TUE Uy DIE RSET SE UUSISSSSS SS eR 
| Douglas-fir Pulp species All other species 
Ownership, State, and | Volume in class— Volume in class— Volume in class— 
forest-survey unit Total ¥ oI Total3| A Total wes 
volume | volume | volume ale 
tele: 1 = | I i U1 I Il II 
| | | 
| | paseo fe 
All ownerships—C ontinued. Million | | Mullion | | Mitiion | 
Oregon—Continued. board feet |Percent |Percent | Percent | board feet | Percent |Percent | Percent | hoard feet | Percent |Percent | Percent 
Umpaue Rivers 22. se wees \/ie54) 181" |r 27 Git em 12 | 4,280 7} 69 Ba lp 4, 23685985 < 9460) 12 
Rocuewiversceses== o> 5a eo | 15, 264 | 22 63 15 3, 932 | 28 | 55 17 7, 041 72 19 9 
Rota] sees eases See aS es eta 229, 242 49 | 44 7 46, 087 | 43 49 8 20, 258 52 40 | 8 
Summary: | | | 
Nation alforestiaseec= seme vae ise 107, 887 38| 52 10 | 68,732) 30 54/16 | 14,035 | 37 52 ul 
Other ownerships.___-----------------| 217,919 62 34 4| 92, 941 62| 34 4] 29,540] 70 26 1 
Ail ownerships......----------------| 325, 806 54 40 6 | 161,673 48 43 9| 43,575| 59| 34 7 
i} | | 
influencing availability are topography, density of This classification should not be considered pre- 
stand, size and quality of timber, species, and to a cise or permanent. Developments in logging equip- 
lesser extent proximity to common-carrier railroads. ment and methods, such as increased use of crawler 
Broadly classified as to economic availability in tractors and motortrucks, change from clear cutting 
table 8 and figure 15, the nonreserved saw timber to some sort of partial cutting, construction of new 
of the region is divided into three species groups— railroads, or improvement of certain harbors te 
° 5 Pp ’ Pp 
Douglas-fir; pulp species, including the hemlocks, accommodate sea-going vessels, would alter the 
spruces, and balsam firs; and all other—and two status of large quantities of standing timber. 
kinds of ownership—national forest and all other. Development of new uses and markets for some of 
p 
In general the economic availability of saw the so-called minor species would upset the classi- 
Pp 
timber is greater for western Washington than for fication. As depletion advances the relative avail- 
western Oregon and is greater for other ownerships ability of the remaining timber will change. 
than for national forest. It is higher for Douglas- 
fir than for the pulp species, both in western Oregon CahieVoluine 
and in western Washington. On Oregon lands 
outside the national forests, however, it is less for Comparisons of the timber volumes of different 
Douglas-fir than for the pulp species. The reason forest regions can be made accurately only in cubic 
is that a large part of the Douglas fir on these lands feet, because the board-foot unit of measure is not 
is in remote locations in the southern part of the precise and varies greatly with relative size of 
State and is poor in quality, whereas by far the timber and with utilization standards. ‘Total 
greater part of the pulp-species volume is at low cubic volume in this region, given in table 9 by 
and comparatively accessible locations in the ownership class and species, is 129.5 billion cubic 
coastal belt. feet. Of this total 101 billion feet is in sawlog-size 
The ‘‘all other species” group has a total stand of (16 inches d. b. h. or more) trees, 7 billion feet is in 
44 billion feet, mostly “‘cedar.”” Generally speaking understory (less than 16 inches d. b. h.) trees in 
the ‘‘cedars’’, exclusive of Alaska yellow-cedar, are conifer saw-timber stands, 18.5 billion feet is in 
more accessible than Douglas-fir and the pulpwood conifer second-growth stands, and 3 billion feet is 
species. They occur usually at lower elevations in hardwood stands. ‘The first three categories 
and on ground more favorable for logging. Pon- include small quantities of hardwood volume and 
derosa pine and sugar pine, also, are in the main the last includes some conifer volume. 
relatively accessible. As a result the all-other- Sawlog-size timber constitutes a much larger per- 
species group ranks highest in economic availa- cent of the cubic timber volume in the Douglas-fir 
bility. region than in other forest regions of the United 
