bulk of the current sawlog production. Of the total 
net board-foot growth in the region one-third is in 
stands less than 22 inches d. b. h., approximately 
one-half in stands 22 to 30 inches d. b. h., and less 
than one-fifth on trees 32 or more inches d. b. h. 
Survey data indicate that current annual growth 
is about 28 percent of total annual depletion of 
trees of sawlog size. However, such a direct com- 
parison may be misleading in a region of extensive 
virgin forests in which growth is offset by mortality 
and decay. Such a rate of cutting in excess of 
growth may be justified until the large area of 
mature and overmature timber stands is converted 
to growing stands. The present growth of the 
region’s forests would have been much less if exten- 
sive old-growth stands had not been destroyed by 
fire about the middle of the last century and re- 
placed by thrifty growing stands which are now 
Taser 22.—Current annual growth } in the Douglas-fir region, 1933 
Conifer types ? Hardwood types 3 Total 
District and unit & ; " Z , at 
urrent annual | ‘urrent annual | Current annual 
Area growth | Area growth Area growth 
| 
| | 
Million | Million Million | Million Million | Million 
Puget Sound: Acres cubic feet | board feet Acres cubic feet | board feet Acres cubic feet | board feet 
INoxthy Puget'Soun ds): eae a a 786, 635 61 114 134, 252 5 7 920, 887 66 121 
Gentralteuget: Sounds eee ee 1, 412, 220 101 127 104, 458 3 6 1, 516, 678 | 104 133 
SouthiPugetSound 222922. 22 2s ss 742, 095 | 83 261 35, 730 2 2 777, 825 85 263 
LTR Gall] erate eee ie oe na tee SY 2, 940, 950 245 502 274, 440 10 15 8, 215, 390 255 517 
> 
Grayseblarbor ieee eae eee eae eee er be ee 553, 719 62 165 61, 193 2 3 614, 912 64 | 168 
Columbia River: 
ColumbiasRiverpiwashs Sanit cele: 899, 740 85 222 20, 538 1 | 3 920, 278 86 225 
ColumbiaiRiver! Oreg? 2-2" 2 sass eee 1, 087, 619 105 156 65, 716 2 | 3 |. 1, 153, 335 107 | 159 
| 
Lao re eo Se a ae ee 1, 987, 359 190 378 86, 254 3 | 6 | 2,073, 613 193 384 
WiillamettemRivenysws suc. ces cies lezen ae irlgg 1, 683, 674 166 422 121, 207 3 5 1, 804, 881 169 | 427 
Oregon coast: | 
INorth;Oregon'coast si ss2- 2 ee a 613, 596 64 283 226, 363 6 40 839, 959 70 323 
SouthiOregonicoastaece esa ee ee ee ee 765, 741 76 297 119, 484 3 3 885, 225 79 300 
ANS ERs nee a a eee 1, 379, 337 140 580 345, 847 9 43 1, 725, 184 149 623 
South Oregon: 
Wimp quarRiver® yy sass cas ea ee 921, 590 51 246 77, 118 1 (4) 998, 708 52 246 
TROP MGHECLV CL ren oe ne ik ne es ee een See 449, 993 32 17 151, 507 3 (4) 601, 500 | 35 17 
PROC eee ont cate te ae Tis the Bits 1, 371, 583 83 | 263 228, 625 4 | (4) 1, 600, 208 | 87 263 
Regional: totals sae ee PL ee 9, 916, 622 886 2,310 1, 117, 566 | 31 72 11, 034, 188 917 2, 382 
Summary by districts: Percent Percent | Percent Percent Percent | Percent Percent Percent | Percent 
IPUset Sound sca meme ME ee ae 29.7 27.7 21.7 24.6 32.3 20.8 29.1 27.8 21.7 
(Grav shel anbDon ees semen ne oe eo ee 5.6 7.0 (ba 5.5 6.4 4.2 5.6 | 7.0 eal 
Columbiaghivens=s2sesa—- = = 2s = a 20.0 21.4 16.4 Fat 9.7 8.3 18.8 21.2 16.1 
Willamette River 17.0 18.7 18.3 10.8 9.7 7.0 16.4 18.3 17.9 
Oregon coast_______- 13.9 15.8 25.1 30.9 29.0 59.7 15.6 | 16. 2 26. 2 
South Oregon 13.8 9.4 | 11.4 20.5 | 12.9 |.--.------ 14.5 | 9.5 11.0 
Regionalstotal = case e- s eee| 100.0 100.0 100. 0 100.0 | 100.0 100. 0 100.0 | 100.0 100. 0 
| | 
5 | | 
1 Growth in cubic feet is shown for the portion of the stem of all trees 5.1 inches d. b. h. or more between the stump and a top 4 inches in diameter 
inside bark, exclusive of bark and limb wood. Growth of conifers in board feet is shown for all trees 15.1 inches d. b. h. or more, estimated in 32-foot logs 
to 12-inch top, Scribner rule. Growth of hardwoods in board feet is shown for all trees 11.1 inches d. b. h. or more, estimated in 8-foot logs to 10-inch top, 
Scribner rule. 
2 Data are shown only for stands 160 years or less in age, on commercial conifer forest land. 
3 Data shown are totals for hardwood timberland (type 31) and oak-madrone woodland (type 4). Data for north Oregon coast include 182,060 acres 
of potential conifer forest land temporarily occupied by hardwoods, and those for south Oregon coast include 14,520 acres of such land. 
4 Less than 4 million board feet. 
