Table 1 8. — Average cordwood volume per acre of sound trees 1 by forest type 

 and forest conditio)!, 1938 



Forest type 



Loblolly pine 



Shortleaf pine 



Pond pine 



Longleaf pine 



Virginia pine 



White pine .. 



Cove hardwoods 



Bottom-land hardwoods 

 Upland hardwoods 



All types 



Old growth, 

 sawlog size 



Uncut 



Cords 

 41.5 

 32.5 

 10.5 

 14.4 

 28.0 

 28.5 

 37.5 

 32.6 

 23.9 



28. 7 



Partly 

 cut 



Cords 

 23.2 

 19.2 

 10.1 

 10.1 

 15.7 

 24.2 

 20.2 

 23.4 

 16.6 



Second growth, 

 sawlog size 



Uncut 



19. 



Cords 

 22.0 

 20.4 

 9.8 

 10.5 

 17.2 

 17.9 

 19.9 

 20.9 

 13.3 



18.6 



Partly 

 cut 



Under 

 sawlog 

 size - 



Aver- 

 age all 

 condi- 

 tions 



Cords 

 14.6 

 14.5 

 7.7 

 8.3 

 12.7 

 14.7 

 14.9 

 15.5 

 11.5 



Cords 

 3.4 

 4.6 

 1.2 

 1.8 

 3.6 

 5.3 

 6.9 

 4.2 

 5.9 



Cords 

 14.4 

 12.4 

 4.0 

 3.8 

 8.7 

 15.4 

 13.8 

 16.6 

 9.6 



13.8 



4.0 



1 Includes material in stems of all sound trees 5 inches d. b. h. and larger. 



2 Average of second-growth, reproduction, and clear-cut conditions. 



Cubic-foot Volume 



The net cubic-foot volume of sound wood in trees 5 

 inches d. b. h. and larger, exclusive of chestnut, is summa- 

 rized in table 19. Bark is not included; otherwise the 

 material is the same as that expressed in cords in table 16. 

 The 13.4 billion feet of growing stock is the forest capital. 

 If this principal is to be kept reasonably intact while indus- 

 tries are supported by the interest it earns, the average 

 annual cut should not exceed the annual growth of such 

 potential saw timber. The drain upon the growing stock 

 can be reduced if greater use is made of the 3.5 billion cubic 

 feet of other sound wood in cull trees and upper stems and 

 limbs of sawlog-size hardwoods. At present most of the 

 small-dimension and part-cull wood is taken only for fuel 

 and there is a pressing need for forest products research to 

 develop new and better markets for this kind of material. 



Table 19. — Net cubic-foot volume of all sound wood, by class of material 

 and species group, 193S 



Class of material 



Softwoods 



Hard- 

 woods ' 



Total 



Growing stock: 



Sawlogs . 



Upper stems of softwood saw 



Mai. ft. 



4, S96, 600 

 1. 085, 480 

 1. 965, 120 



Mcu.fl. 

 2, 470, 740 



Mcu.fl. 

 7. 367, 340 

 1, 085, 480 



timber. 

 Sound trees of under-sawlog size- 



2, 957. 390 



4. 922, 510 



Total.. _ 



7, 947, 200 



5, 428, 130 



13 375 330 







Other sound wood: 



Upper stems of hardwood saw 





1, 0.83, 020 



2. 069, 650 



1 , 083 020 



timber. 

 Cull trees 



383, 310 



2 452 960 







Total 



383,310 



3.152,670 



3, 535 980 







All material 



8, 330. 510 



8, 580. 800 



16 911 310 







1 Chestnut is not included. 



F170314 



Figure 30; — Im?nature black and water tupelos in Gates County. There 

 are 25 million cords of these species in the Coastal Plain. 



Pine Poles 



Many of the loblolly, shortleaf, and longleaf pine trees 

 included in 'previous tabulations of volume are suitable for 

 use as poles. Estimates based on classification of indi- 

 vidual trees in the woods indicate that there are about 47 

 million poles in the pine forests of the piedmont and 

 Coastal Plain (table 20). On the average, about every 

 seventh pine tree between 7 and 18.9 inches in diameter is 

 sufficiently straight, clear, and uniformly tapered to 

 qualify as pole material (fig. 31), and only 1 out of 10 of 

 these poles will be longer than 30 feet. More than halt of 

 the potential poles are only 20 feet long and almost three- 

 fourths of them represent trees less than 11 inches d. b. h. 

 The best source of long poles is the northern part of the 

 Coastal Plain, particularly in the loblolly pine stands be- 

 tween the Roanoke and Chowan Rivers. Although there 

 are a great number of poles scattered throughout the east- 

 ern and central parts of the State most of them will be cut 

 for sawlogs, pulpwood, or other products. To meet this 

 competition, wood-treating plants and other consumers 

 usually have to pay a premium for pole timber. 



35 



