SOUTH CAROLINA FOREST RESOURCES AND INDUSTRIES 



Timber Volume 



-ISf*- 



ESTIMATES of the standing timber volume in 

 this report are for the year 1936. The vol- 

 ume is expressed in three units of measure — 

 board feet, cords, and cubic feet. These units apply 

 in part to identical stands of trees and to parts of 

 trees. Thus the estimates for sawlogs in board feet 

 (table 10), cords (table 14), and cubic feet (table 15) 

 are identical volumes, with the following exceptions: 

 the cordwood volume includes bark; the cordwood 

 and cubic-foot volumes include the tops of sawlog 

 trees, cull trees, and trees too small for sawlogs. 



The board-foot volume of sawlog material for pine 

 is in trees 9 inches d. b. h. and larger, and for hard- 

 woods 13 inches and larger. The volume of cord- 

 wood is net, including bark, of all living trees 5 

 inches d. b. h. and larger. The cubic foot volume 

 provides the most accurate measure of the timber 

 stand; it facilitates growth calculation and compari- 

 son of survey units. 



Volumes are also classified by species, size of 

 trees, and forest condition (old growth, second 

 growth, etc.) 



Table 10. — Net board-foot volume. International }/^-inch rule, by 

 forest condition classes, survey units, and species groups, 1936 



Table 10. — Net board-foot volume. International ]/i-inch rule, by 

 forest condition classes, survey units, and species groups, 1936 

 — Continued. 



Survey unit 



and 



species group 





Sawlog siz 



e 



Under- 

 sawlog- 



All con- 

 ditions 



Old 

 growth, 



Old 



growth, 



partly 



cut 



Second 

 growth 



State: 



Pines 



Hardwoods 



Million 

 hoard feet 

 2,637.0 

 3,839.2 

 586. 7 



Million 

 boardfeet 

 2,073.5 

 2,246.9 

 276.4 



Million 

 boardfeet 

 12,961.5 



3,950.7 

 490.6 



Million 



boardfeet 



8S2.2 



247.6 



33.9 



Million 

 boardfeet 

 18.524.2 

 10,284.4 



1.387.6 





All species 



7,062.9 



4,596.8 



17.402.8 



1,133.7 



30,196.2 



Southern Coastal Plain: 

 Pines 



1,241.6 



985.7 

 119.8 



538.3 

 525.6 

 72.0 



3,744.2 



1.564.4 



279.9 



239.2 

 79.7 

 19.1 



5.763.3 



Cypress 



490 8 







All species 



2.347.1 



1,135.9 



5,588.5 



338.0 



9.409.5 



Survey unit 



and 

 species group 



Sawlog size 



Under- 

 sawlog- 



All con- 

 ditions 



Old 

 growth. 



Old 

 growth, 

 partly 



Second 

 growth 



Northern Coastal Pliin: 

 Pines 



Million 

 boardfeet 



959.3 

 2,443.1 



466.9 



Million 

 boardfeet 

 1,115.9 

 1,408.1 

 204.4 



Million 

 boardfeet 

 6,101.0 

 1,465.9 

 210.7 



Million 



boardfeet 



347.9 



84.4 



14.8 



Million 



Hardwoods 



5,401.5 

 896 8 







All species 



3.869.3 



2,728.4 



7.777.6 



447.1 



14.822.4 



Piedmont: 



Pines 



Hardwoods 



436.1 

 410.4 



419.3 

 313.2 



3,116.3 

 920.4 



265.1 

 83.5 



4.236.8 

 1 727 5 







All species 



846.5 



732.5 



4,036.7 



348.6 



5 964 3 







Board-Foot Volume of Saw Timber 



In 1936 South Carolina had 30.2 billion board feet 

 of saw timber,^ when scaled by the International 

 M-inch log rule (tables 10, 1 1 and fig. 29). This rule 

 approximates the actual recoverable volume in 

 green-lumber tally for the wide range of species and 

 diameters included in the inventory. It is material- 

 ly higher than the estimates obtained by the Scrib- 

 ner and Doyle rules (Appendix, table 31). 



Volume by Species 



Pines comprise 18.5 billion board feet, or 61 per- 

 cent of the total volume of saw timber; hardwoods 

 almost 10.3 billion board feet, or 34 percent; and cy- 

 press almost 1.4 billion board feet, or 5 percent (table 



m. 



6 Saw-timber estimates in board feet are net log scale. Only 

 merchantable trees containing acceptable sawlogs have been 

 included, with deductions for material that would be left in the 

 woods because of rot, fire scar, crook, limbiness, etc., and for loss 

 in sawing at the mill because of sweep and interior defects 



29 



