252 



,THE OUTLOOK FOR TIMBER IN THE UNITED STATES. 



Table 11. — Net volume of growing stock on commercial timberland in the United States, by diameter class, softwoods and 

 hardwoods, and timber supply region, as of December 31, 1952 and 1962, and January 1, 1970 ' — Continued 



HARDWOOD GROWING STOCK 





Year 



Total 



Diameter class (inches) 



Timber supply region 



5.0 to 7.0 



7.0 to 9.0 



9.0 to 

 11.0 



U.Oto 

 13.0 



13.0 to 

 15.0 



15.0 to 

 17.0 



17.0 to 

 19.0 



19.0 to 

 21.0 



21.0 to 

 29.0 



29.0+ 



Northeast 



1970 

 1962 

 1952 



60, 659 

 52, 973 

 43, 197 



9,937 

 8,634 

 6,925 



11, 168 

 9,735 

 7,703 



10,881 

 9,392 

 7,331 



8,696 

 7,392 

 5,712 



6,735 

 5,809 

 4,651 



4,755 

 4,173 

 3,577 



3,205 

 2,874 

 2,532 



1,975 

 1,815 

 1,659 



2,845 

 2,729 

 2,708 



456 





416 

 394 





1970 

 1962 

 1952 



55, 903 

 48,204 

 38, 979 



9,363 

 8,020 

 5,810 



10, 521 

 8,825 

 6,616 



9,441 

 8,135 

 6,717 



7,385 

 6,321 

 4,950 



5,955 

 5,094 

 4,219 



4,475 

 3,841 

 3,226 



3,055 

 2,658 

 2,367 



1,917 

 1,735 

 1,606 



3,234 

 3,045 

 2,975 



553 





528 

 489 



Total, North — 



1970 

 1962 

 1952 



116, 563 

 101,177 

 82, 177 



19,300 

 16,654 

 12, 736 



21,690 

 18,560 

 14,319 



20, 323 

 17, 527 

 14,048 



16, 082 

 13, 714 

 10, 662 



12, 691 

 10,904 



8,871 



9,231 

 8,014 

 6,804 



6,260 

 5,532 

 4,900 



3,893 

 3,550 

 3,266 



6,079 

 5,775 

 5,684 



1,009 

 945 

 883 



Southeast 



1970 

 1962 

 1952 



40, 296 

 37, 547 

 34,953 



4,114 

 3,503 



2,899 



5,379 

 4,880 

 4,308 



6,064 

 5,837 

 5,481 



6,178 

 5,748 

 5,236 



5,509 

 5,241 

 4,937 



4,225 

 3,952 

 3,653 



3,115 



2,928 

 2,834 



2,026 

 1,939 

 1,909 



2,999 

 2,917 

 3,066 



683 





598 

 626 



Southcentral 



1970 

 1962 

 1952 



40, 815 

 40,708 

 40, 616 



4,655 

 4,413 

 3,999 



6,135 

 5,836 

 5,404 



6,685 

 6,636 

 6,420 



6,327 

 6,277 

 6,130 



5,477 

 5,493 

 5,509 



4,104 

 4,048 

 4,261 



2,648 

 2,818 

 3,089 



1,779 

 1,929 

 2,062 



2,583 

 2,813 

 3,206 



418 





440 

 532 



Total, South,. 



1970 

 1962 

 1952 



81, 112 

 78,255 

 75, 569 



8,769 

 7,916 

 6,898 



11,515 

 10,717 

 9,712 



12, 749 

 12, 474 

 11,901 



12, 505 

 12, 026 

 11,366 



10,987 

 10,734 

 10,447 



8,330 

 8,001 

 7,915 



5,764 

 5,746 

 5,924 



3,805 

 3,869 

 3,972 



5,583 

 5,731 

 6,272 



1,102 

 1,038 

 1,158 



PNW Douglas-fir 



1970 

 1962 

 1952 



10, 981 

 9,063 

 6,908 



1,539 



1,270 



999 



1,549 

 1,296 

 1,026 



1,525 

 1,294 

 1,026 



1,405 



1,202 



938 



1,249 



1,059 



800 



976 

 777 

 526 



758 

 604 

 449 



547 

 434 

 314 



1,105 

 894 

 648 



328 

 233 

 182 



PNW ponderosa pine 



1970 

 1962 

 1952 



209 

 192 

 174 



50 

 44 

 38 



41 

 37 

 36 



28 

 26 

 23 



28 

 27 

 23 



8 



8 



7 



3 

 3 

 3 



10 

 9 

 9 



8 



7 

 7 



28 

 26 

 23 



5 





5 

 5 



Alaska — Coastal 



1970 

 1962 

 1952 



298 

 300 

 298 



12 



17 

 17 



20 

 15 

 15 



32 

 15 

 15 



34 

 37 



36 



31 

 34 

 33 



33 

 36 



36 



32 

 34 

 34 



31 

 34 

 33 



43 



46 

 46 



26 





28 



28 



California and Hawaii 



1970 

 1962 

 1952 



3,333 

 3,194 

 3,047 



202 

 200 

 192 



311 

 314 

 319 



315 

 296 

 249 



327 

 301 

 281 



351 

 327 

 300 



298 

 277 

 257 



281 

 265 

 241 



235 

 217 

 203 



598 

 567 

 536 



412 





427 

 466 



Total, Pacific Coast 



1970 

 1962 

 1952 



14, 822 

 12, 749 

 10, 427 



1,803 

 1,532 

 1,247 



1,922 

 1,663 

 1,397 



1,901 

 1,632 

 1,314 



1,794 

 1,567 

 1,278 



1,640 

 1,428 

 1,141 



1,310 

 1,093 



822 



1,081 

 913 

 734 



821 

 692 

 557 



1,774 

 1,533 

 1,253 



771 

 693 

 681 



Northern Rocky Mountain 2 



1970 

 1962 

 1952 



721 

 701 

 634 



115 

 105 



87 



118 

 112 



95 



102 

 100 



87 



92 

 91 

 80 



73 

 68 

 61 



53 

 51 

 46 



39 

 40 

 38 



31 



29 

 28 



83 



87 

 86 



11 

 15 

 23 



Southern Rocky Mountain 2 



1970 

 1962 

 1952 



3,785 

 3,784 

 3,325 



657 

 444 

 355 



942 

 836 

 705 



751 

 839 

 728 



575 

 649 

 579 



385 

 440 

 404 



223 

 267 

 250 



131 

 155 

 148 



63 

 85 



84 



54 

 66 

 68 





 

 



Total, Rocky Mountain 



1970 

 1962 

 1952 



4,o07 

 4,486 

 3,960 



772 

 550 

 443 



1,060 

 948 

 800 



853 

 939 

 815 



668 

 740 

 659 



459 

 508 

 465 



277 

 318 

 296 



171 

 196 

 186 



95 

 115 

 112 



137 

 153 

 155 



11 

 15 

 23 



Total, hardwoods - 



1970 

 1962 

 1952 



217, 005 

 196, 669 

 172, 134 



30,646 

 26,653 



21,324 



36, 189 

 31,888 

 26,230 



35,828 

 32, 573 



28, 080 



31, 050 



28,048 

 23,968 



25, 778 

 23, 576 

 20, 925 



19, 149 

 17,427 

 15, 838 



13,277 

 12,388 

 11,745 



8,615 

 8,227 

 7,908 



13, 575 

 13, 194 

 13, 366 



2,894 





2,692 

 2,746 



1 Data may not add to totals because of truncating. Zeros indicate no data 

 or negligible amounts. 



2 See footnote 2, table 3. 



