56 



THE OUTLOOK FOR TIMBER IN THE UNITED STATES 



Table 41. — Sawtimber removals, net growth, mortality, supplies of roundwood products, and inventories 

 in the South, 1952, 1962, and 1970, with projections (1970 level of management) l to 2020 





[Mil] 



ion board feet] 











Item 



1952 



1962 



1970 



Projections 





1980 



1990 



2000 



2020 



SOFTWOODS 



Removals from sawtimber: 



Roundwood products ._ 



10, 879 

 543 

 459 



8,909 

 371 

 565 



13, 868 

 567 

 611 



17, 090 

 541 

 255 



20, 384 



475 

 278 



23, 338 

 351 

 286 



23, 421 



Logging residues - _ . 



81 



Other removals __ _ _ 



286 







Total. .. .. ..... 



11, 881 



9,845 



15, 046 



17, 886 



21, 137 



23, 975 



23, 788 







Net growth.. 



13, 638 

 883 



16, 668 

 1,053 



20, 096 

 1,266 



21, 967 

 1,563 



23, 310 

 1,724 



23, 745 

 1,783 



23, 549 



Mortality . _ __ ... 



1, 766 







Roundwood supplies: 



From sawtimber 



10, 879 

 457 



8,909 

 383 



13, 868 

 498 



17, 090 

 497 



20, 384 



498 



23, 338 



498 



23, 421 



From other sources 2 



498 







Total .. 



11, 336 



9,292 



14, 366 



17, 587 



20, 882 



23, 836 



23, 919 







Inventory of sawtimber ... ____ 



185, 571 



230, 398 



275, 876 



323, 285 



354, 751 



365, 081 



362, 093 







HARDWOODS 



Removals from sawtimber : 



Roundwood products ... 



7,288 

 433 

 548 



5,743 



561 



1,042 



5,425 



692 



1,678 



6,877 

 621 

 228 



7, 111 

 573 

 232 



7,261 

 520 

 233 



7, 340 



Logging residues . .. _ 



315 



Other removals . . 



233 







Total ..... . . 



8,269 



7,346 



7,795 



7,726 



7,916 



8, 014 



7,888 







Net growth . ________ 



7,592 

 1,743 



7,625 

 1,982 



7,932 

 1,943 



8,025 

 1,995 



7,971 

 2,019 



7,852 

 2,013 



7, 723 



Mortality _ . _. _ . 



1,981 







Roundwood supplies: 



From sawtimber __ _. _. 



7,288 

 402 



5,743 

 396 



5,425 

 489 



6,877 

 491 



7, 111 



491 



7,261 

 491 



7, 340 



From other sources. .... 



490 







Total 



7,690 



6, 139 



5,914 



7,368 



7,602 



7,752 



7,830 







Inventory of sawtimber .. __ 



205, 496 



204, 530 



207, 975 



212, 107 



213, 691 



212, 951 



209, 611 







1 Plus other area and harvesting assumptions specified 

 in this chapter. 



2 Includes roundwood products from rough and rotten 

 trees, dead trees, and trees on noncommercial and non- 

 forest land. 



Note: Estimates are for trend levels and consequently 

 may differ from actual figures for the specified years. 



5-11 inches in diameter, with little change in 

 volumes of available saw-log material (table 42). 



Supplies of Roundwood Products 



Of the total removals of growing stock in 1970, 

 89 percent of the softwoods and 58 percent of the 

 hardwoods were utilized as wood products (tables 

 40 and 43). About 7 percent of the softwood 

 removals and 17 percent of the hardwood removals 

 were left in the woods as logging residues. Other 

 timber removals attributable to land clearing or 

 other withdrawals of land and timber from the 

 timber growing base accounted for 4 percent of 



all softwood removals in 1970, and 25 percent of 

 all hardwood removals. 



Partially offsetting nonproduct removals are 

 products coming from timber that does not qualify 

 as growing stock, such as rough and rotten trees 

 and trees from land not considered commercial 

 timberland. In 1970, about 5 percent of the soft- 

 wood roundwood produced and 14 percent of 

 hardwood roundwood products came from these 

 nongrowing stock sources (table 40). 



The net result of these partially offsetting factors 

 was that in 1970 total output of roundwood prod- 

 ucts of 3.7 billion cubic feet of softwood growing 



