GROSS VOLUME- 



PER-ACRE CLASS 



( board feet ) 



,211,400 M bd 



4,000 to 4,999 

 211,500 acres; 

 941,800 M bd.ft. 



5,000 and over 



367,000 acres; 



2,899,200 M bd.ft 







PERCENT 



Figure 25. — Proportional area and volume {lumber tally) of sawlog-size timber in the turpentine pine types, classified according 

 to volume of saw timber per acre. Turpentined butts are not included. 



stands, 59 percent is in second growth, and 1 per- 

 cent is scattered throughout the clear-cut and 

 reproduction areas. 



Trees which have been worked for turpentine, or 

 are at present being worked, account for 48 percent 

 of the pine volume. More than 17 percent is in 

 round longleaf and slash pines, 27 percent is in 

 loblolly pine, and the remaining 8 percent is in 

 other nonturpentine pines, principally pond, spruce, 

 shortleaf, and sand pines. Approximately 3.7 bil- 

 lion board feet, or 29 percent of the pine saw-timber 

 volume, occurs on old-growth areas, and 8.9 billion 

 board feet, or 71 percent, in second-growth stands. 

 Approximately 75 percent is in the 10- to 16-inch 

 diameter-classes (table 13). 



Tupelos and sweetgum and other soft-textured 

 hardwood trees, classified as pulping hardwoods, 

 constitute 70 percent of the hardwood volume. As 

 shown in table 13, approximately 46 percent of the 

 hardwood volume is in trees at least 19.0 inches 

 d.b.h., which produce relatively high-grade ma- 

 terial, the remaining 54 percent representing logs 

 of lower quality. 



Practically all the saw-timber volume is physi- 

 cally accessible with modern, mobile, effective log- 

 ging equipment and the present excellent transpor- 

 tation facilities. 



Volume-per-acre distribution is indicated for the 

 sawlog-size conditions of the turpentine pine types 



in figure 25. These data are based on gross board- 

 foot volume, but with turpentine butts excluded. 

 While the figures of the smallest volume-per-acre 

 class may not be truly indicative, they become sig- 

 nificant when combined with those of the next 

 larger class (1,000 to 1,999 board-feet per acre). 

 In the type group and under the conditions here 

 being considered, more than 76 percent of the 

 volume occurs on 48 percent of the area in stands of 

 2,000 board-feet per acre or more. Although it is 

 common practice in this area to log stands that will 

 yield as little as 400 board feet per acre, this is gen- 

 erally done to remove worked-out naval stores tim- 

 ber or to carry on similar salvage operations. 



Cordwood Volumes 



A considerable volume of material in standing 

 timber, because of its small size or poor quality, 

 must go into such uses as pulpwood, fuel wood, 

 fence posts, etc., if utilized now. This volume is 

 found principally in the stems of sound trees under 

 sawlog size, in the tops of sawlog-size trees, in the 

 portion of the butts unusable for saw timber, and in 

 the sound portions of cull trees. Together with 

 the volume in sawlog material already shown in 

 board feet, it is expressed in cords in table 14. 



Obviously not all this volume is immediately 

 available, nor should it be used in the form of 



37 



