PROJECTED TIMBER SUPPLIES — 19 70 LEVEL OF MANAGEMENT 



51 



Dependence on the South as a source of softwood 

 roundwood supplies is estimated to continue to 

 increase to half the Nation's total supply, whereas 

 the share of U.S. production coming from the West 

 is projected to decline rather sharply as remaining 

 old-growth timber is harvested. 



The South also provided somewhat more than 

 half of the hardwood products harvested in the 

 United States in 1970 (table 35). Over the next 

 few decades, however, prospectively available 

 supplies of hardwoods increase more in the North 

 than in other sections. In terms of cubic feet, the 

 North consequently accounts for over half the 

 projected supply of hardwood products in 2000. 



The distribution of roundwood production in 

 terms of board feet is quite different from output 

 in cubic feet. Because of the larger average size of 

 timber in the West, the Pacific Coast region 

 produced 43 percent of the total board footage of 

 roundwood products in 1970, whereas the South 

 accounted for only 34 percent (table 36 and fig. 22). 

 As in the case of cubic feet of products, however, 

 projections show a reversal of this situation, with 

 42 percent of the projected total output in 2000 

 coming from the South, compared with 28 percent 

 from the Pacific Coast. 



Roundwood supplies by owner class. — Farm and 

 miscellaneous private ownerships have long been 

 the principal source of roundwood products. Thus 

 of the 12.2 billion cubic feet of roundwood products 

 harvested in 1970, nearly half was derived from 

 these farm and miscellaneous private holdings 

 (table 37). About one-fourth of the total came from 

 land owned by forest industries. Public lands also 

 contributed about a quarter of the total, as shown 

 by the following tabulation of percent of cubic 

 feet of roundwood products derived from each 

 owner class: 



Projections 



Owner class 1962 1962 1970 1980 1990 2000 2020 



National Forest 8 16 17 17 16 16 15 



Other public . 5 7 7 7 8 9 9 



Forest industry 30 28 28 22 20 19 21 



Farm and miscellaneous private.. 57 49 48 54 56 67 65 



All owners 100 100 100 100 100 100 100 



In terms of board feet, the distribution of 

 roundwood harvested shows a heavier concentra- 

 tion of cutting on forest industry and National 

 Forest lands (table 38 and fig. 23) — an indication 

 of the relative concentration of larger diameter 

 timber inventories in these holdings. 



Table 36. — Supplies of sawtimber products from U.S. forests, by section and species group, 1952, 1962, 



and 1970, with projections to 2020 



[Million board feet] 



Section and species group 



1952 



1962 



1970 



Projections 





1980 



1990 



2000 



2020 



North: 



Softwoods. 



1, 898 

 4, 300 



1,488 

 4,430 



2, 115 

 6, 083 



2,390 

 7,648 



3,014 

 9,997 



3, 793 

 12, 139 



3, 793 



Hardwoods 



11, 994 







Total 



6, 198 



5,918 



8, 197 



10, 038 



13,011 



15, 932 



15, 787 







South: 

 Softwoods 



11,337 



7, 690 



9, 292 

 6, 139 



14, 366 

 5,914 



17, 586 

 7,368 



20, 882 

 7,602 



23, 836 

 7,752 



23, 919 



Hardwoods. _ _ _ 



7,830 







Total 



19, 027 



15, 431 



20, 280 



24, 954 



28, 484 



31, 588 



31, 749 







Rocky Mountains: 



Softwoods _ _______ 



3, 126 

 15 



4, 189 

 19 



5, 273 

 13 



5, 585 

 108 



5, 648 

 148 



5,915 

 195 



5,511 



Hardwoods 



191 







Total 



3, 141 



4,208 



5,286 



5, 693 



5,796 



6, 110 



5, 702 







Pacific Coast: 

 Softwoods 



22, 439 

 122 



22, 540 

 201 



25, 182 

 322 



23, 264 

 380 



21, 323 

 435 



20, 647 

 469 



20, 722 



Hardwoods. 



503 







Total 



22, 561 



22, 741 



25, 504 



23, 644 



21, 758 



21, 116 



21, 225 







Total United States: 

 Softwoods 



38, 800 

 12, 127 



37, 510 

 10, 788 



46, 936 

 12, 331 



48, 825 

 15, 505 



50, 867 

 18, 182 



54, 191 

 20, 556 



53, 945 



Hardwoods. 



20, 518 







Total 



50, 927 



48, 298 



59, 267 



64, 330 



69, 049 



74, 747 



74, 463 







