PROJECTED TIMBER SUPPLIES 1970 LEVEL OF MANAGEMENT 



57 



Net growth and removals of softwood growing 

 stock in the South, by size of material 



net growth ^- *~^ 

 softwoods / 



y/ 





^'softwoods / 

 removals / 



--- 





— 



, »* removals 

 5.0"-9.0" d.b.h. 



removals 

 9.0"-15 0" d.b.h. 







saw-log 

 portion 



^—- 







removals 

 15.0"-up d.b.h. 



1952 1962 1970 1980 1990 2000 2010 2020 



Figure 26 



Net growth and removals of hardwood growing 

 stock in the South, by size of material 



5 



net growth . 



*~ i I j removals 



^ hardwoods , . . 



£ hardwoods 



" — ■ — — *■** removals 



g " ' ~ — --^ 5.CT-11.0 d.b.h. 



5 2 



J :::::_ : 



sow-log 



portion removals 



i5.0"-up d.b.h. 



1952 1962 1970 1980 1990 2000 2010 2020 



Figure 27 



stock was 7 percent less than removals of 4.0 

 billion cubic feet. For hardwoods, however, total 

 roundwood products, amounting to 1.7 billion 

 cubic feet, were equivalent to only 67 percent of 

 the 2.5 billion cubic feet of removals. 



It has been assumed that with expanding 

 markets and improved technology resulting from 

 ongoing research and development, the proportion 

 of total removals going into logging residues and 

 other removals will decline. The biggest change is 

 projected for hardwoods where the proportion of 

 removals going into timber products is projected 

 to increase from 58 percent in 1970 to 89 percent 

 by 2020. 



Roundwood supplies by owner class. — Farm and 

 miscellaneous private owners supplied more than 

 two-thirds of the softwood timber products har- 

 vested in the South in 1970 (table 44 and fig. 28). 

 These owners also supplied 76 percent of all hard- 



wood products harvested (table 44 and fig. 29). 

 Proportions of total output in board feet were 

 quite similar (table 45). In future decades this 

 owner class is projected to supply larger volumes 

 but a ch'minishing percentage of all roundwood 

 products. 



Though far less important in acreage than farm 

 and miscellaneous private holdings, forest industry 

 lands constituted the second leading source of 

 timber products in the South, with 24 percent of 

 the total output of roundwood in 1970. The pro- 

 portion of the total products obtained from these 

 lands is projected to increase, particularly for 

 softwoods. 



National Forests and other public ownerships 

 provided about 5 percent of all roundwood 

 products harvested in the South in 1970, but 

 because of a large excess of growth over removals 

 these lands are projected to supply up to 10 



Supplies of softwood sawtimber products in 

 the South, by owner class 



2 ' 5 



< 



o 



A 

 Z 



O 10 







s 





national 



forest 



_• 









/,^ -^ forest i 



other public 

 ndustry 



«te^ 



/:. 



'^.-~~ 



"■"" 



— 7 







~*SS 



'/ 



farm and misc. 



private 

















1952 1962 1970 1980 1990 2000 2010 2020 



Figure 28 



Supplies of hardwood sawtimber products 

 in the South, by owner class 



national forests 



, V — other pu blic 



forest industry 



