Table 15. — Net cubic-foot volume {inside bark), by species groups and quality classes 





Good sawlog-size trees 



Good trees 

 under saw- 

 log size 2 



Total good- 

 tree volume 



Culls, sound 



and rotten 



culls 3 



All ([ualit 



y classes 



Species group 



Sawlog 

 material 



Tops and 

 limbs ' 





M cubic feet 



1, 165, 730 



6 449, 140 



377, 970 



At cubic feet 



* 290, 690 



5 222, 730 



111, 790 



M cubic feet 



701, 790 



6 502, 830 



190, 020 



At cubic feet 



2, 158, 210 



1, 174, 700 



679, 780 



M cubic ] 'let 



16, 540 



7 451, 960 



37, 720 



M cubic feet 



2, 174, 750 



1, 626, 660 



717, 500 



Percent 



48. 1 





36. 



Cypress 



15. 9 





f 1, 992, 840 



625, 210 



1, 394, 640 



4,012,690 



506, 220 



4, 518, 910 











] Percent 

 t 44.1 



Percent 

 13.8 



Percent 

 30.9 



Percent 

 88.8 



Percent 

 11.2 









100. 









1 Top stems to a 4-inch minimum for pines; tops and limbs for hardwoods and cypress. 



2 Includes trees 5.0 to 8.9 inches in diameter in case of pine and cypress, to a 4-inch top; 5 to 12.9 inches in diameter in the hardwoods, to a 4-inch top. 



3 Includes trees of diameter 5.0 inches or larger to a 4-inch minimum top; limb wood included only on hardwood and cypress trees of sawlog size. 



4 Includes 52,270 M cubic feet in turpentined butts. 

 s Does not include special-use species or scrub oak. 



6 Includes all special-use species to approximately a 4-inch top. Does not include scrub oak. 

 ' Includes all sound scrub oaks to approximately a 4-inch top. 



Cubic- foot Volumes 



The cubic-foot measure for solid wood is used 

 here only as a means of expressing the combined 

 board-foot and cordwood contents of the forest 

 stand 5 inches and larger in terms of a single unit. 

 It constitutes the base used in determining the net 

 result of changes which are occurring in the forest 

 as a result of growth, natural mortality, and indus- 

 trial drain. 



Less than 1 percent of the pine and only 5 per- 

 cent of the cypress cubic-foot volume is in sound 

 and rotten cull tress, but almost 28 percent of the 

 hardwood cubic-foot volume is in this class of 

 timber (table 15). Although 54 percent of the 

 good-tree volume in pine is sawlog material, only 

 38 percent of the hardwood good-tree volume is 

 in this size and quality of material. 



Poles and Piles 



Because of the difficulty of judging the suit- 

 ability of standing trees for poles and piles, the 

 timber cruisers tended to apply the specifications 

 rather strictly, and it is believed that the estimate 

 ol the number of qualified trees is correspondingly 

 conservative. In the following estimates, only 

 longleaf, slash, and loblolly pines are included. 



To meet pole and pile requirements, trees must 

 have a uniform taper and be free from decay, 

 injurious scars, and bird or insect holes. They 

 must also be free from large knots or knots so 

 located as to impair the strength of the pole, and 

 from short crooks and excessive twist or spiral 

 grain. They may have a slight one-way sweep, but 



a straight line drawn from the center of the top to 

 the center of the butt must not fall outside the bole_ 



Table 16. — Pole and pile resources, 1 by tree-diameter classes and 

 length of product 



Tree-diameter 

 class (inches) 



20 

 feet 



25 

 feet 



30 

 feet 



35 

 feet 



40 

 and 



45 

 feet 



50 

 and 



55 

 feet 



All lengths 



8 



At 



sticks 



7,420 



3,885 



1,760 



577 



114 



13 



At 



sticks 



1,949 



1,772 



1,104 



524 



167 



57 



At 



sticks 



893 



1,044 



693 



388 



161 



72 



At 

 sticks 

 126 

 565 

 558 

 334 

 138 

 67 



M 



sticks 



At 

 sticks 



M 



sticks 

 10, 388 

 7,569 

 4,601 

 2,258 

 801 

 319 



Per- 

 cent 

 40. 1 



10 



303 



448 

 366 



161 



72 



38 

 69 

 60 

 38 



29.2 



12.___ 



14 



16_ 



17.7 

 8.7 

 3. 1 



18. 



1.2 







f 



13,769 



5,573 



3, 251 



1,788 



1,350 



205 



25, 936 





Total I 



Per- 

 cent 

 53. 1 



Per- 

 cent 

 21.5 



Per- 

 cent 

 12.5 



Per- 

 cent, 

 6.9 



Per- 

 cent 

 5.2 



Per- 

 cent 

 0.8 





100. 



1 Round and turpentined longleaf and slash pines and loblolly pine. 

 Poles and piles of saw-timber size are also included in the saw-timber 

 and cubic-foot volumes; those under sawlog size, in the cordwood and 

 cubic-foot volumes. Material recorded here does not constitute additional 

 volume. 



It is estimated that in 1934 there were nearly 

 26 million potential poles and piles in northeastern 

 Florida (table 16). Over half of these were in the 

 20-foot class; 21 percent were in the 25-foot class. 

 Inasmuch as the annual demand for poles is less 

 than 50,000 and is principally for the 25-foot class, 

 it is significant that over 12 million sticks were in 

 this class or in classes of greater length. Con- 

 sidering all lengths, approximately 62 percent of 

 the qualified pole and pile trees are in round long- 

 leaf or slash pines, 32 percent in pines that have 

 been (or are being) turpentined, and the remainder 

 in loblolly and other pines. 



Pole and pile trees are scattered singly and in 

 groups throughout the pine stands. The relative 



29 



