Table 12. — Net board-foot volume {Doyle rule), by major species groups and forest conditions 





Old growth 



Second growt 



a 



Reproduc- 

 tion and 

 clear-cut 



All forest c 





Species group 



Uncut 



Partly 

 cut 



Sawlog size 



Under 



sawlog 



size 



onditious 





Uncut 



Partly 

 cut 





Pines: 



M board 

 feet 



132, 500 



531, 900 



234, 600 



54. 500 



M board 

 feet 



274, 100 



292, 200 



74, 200 



28, 300 



M board 

 feet 



382, 200 



652, 000 



333, 200 



66, 100 



M board 

 feet 



20, 000 



61, 100 



57, 900 



5. 100 



M board 



feet 



132, 500 

 69, 400 

 14,800 

 20, 700 



M board 



feet 



26, 200 



12,700 



2, 300 



5, 600 



A[ hoard 



feet 



967, 500 

 1,619,300 



717,000 



180,300 



Percent 

 14.7 



Slash 



24.7 



Loblolly. 



10.9 



Other . 



2.7 







Total 



953, 500 



668. 800 



1, 433. 500 



144, 100 



237. 400 



46. 800 



3, 484. 100 



53.0 



Hardwoods: 



208, 800 

 210, 300 

 259, 700 

 73, 000 

 290, 700 



127, 200 

 215, 800 

 97, 200 

 33, 100 

 184, 100 



46, 600 

 29, 100 

 41,700 

 9,700 

 48, 400 



8,200 

 5,100 

 7,100 

 1, 500 

 5,400 



4,800 

 7,300 

 6,900 

 2,600 

 9,600 





395, 600 

 467, 700 

 412, 800 

 119,900 

 538. 400 



6.0 





100 



200 



7. 1 



Red oaks -- - ....... 



6.3 





1.8 



Other 



200 



8.2 



Total 



1, 042, 500 



657, 400 



175,500 



27, 300 



31.200 



500 



1.934.400 



29.4 



Cypress ... ... 



578, 800 



411,400 



120, 200 



1 1.300 



27. 000 



3, 000 



1, 154,700 



17.6 





[ 2,574.80(1 



1,737,600 



1, 729. 200 



185, 700 



295, 600 



50.300 



6, 573, 200 







i Percent 

 1 39.2 



Percent 

 26.4 



Percent 

 26.3 



Percent 



2.8 



Percent 

 1 . 5 



Percent 

 0.8 





IOO. 



wages. Because of the accessibility of timber, the 

 ease of logging, and the availability of labor, the 

 sawmill and other wood-products industries gener- 

 ally find it feasible to log areas if they bear 600 

 board feet or more per acre of pine or 1,000 board 

 feet or more per acre of hardwoods in relatively 



large blocks. In this study all areas bearing these 

 minimum volumes per acre were included in saw- 

 log-size stands, even though some of them were 

 widely scattered or in fence corners and could not 

 now be economically logged. In the survey unit as 

 a whole, old-growth uncut stands averaged almost 



Table 13. — Diameter-class distribution oj net board-fool volume {Doyle rule), by species groups and forest conditions 





Old-g 



•owth 



Second growth 



Reproduc- 

 tion and 

 clear-cut 



AH forest <• 





Species group and tree diameter class (inches) 



Uncut 



Partly cut 



Sawlog size 



Under 



sawlog 



size 



inditions 





Uncut 



Partly cut 





Pine: 



10 and 12. __ 



M board 

 feet 



137, 500 

 274, 000 

 225, 300 

 316, 700 



M board 

 feet 

 168, 500 

 246, 500 

 147, 000 

 106, 700 



A/ board 

 feet 



673, 900 

 506, 500 

 160, 000 

 93, 000 



M board 

 feet 

 57, 000 

 46, 700 

 26, 100 

 14, 400 



M board 



feet 



161, 700 



62, 500 



12, 100 



1, 1Q0 



M board 

 feet 

 27, 200 

 14, 700 

 4,700 



M board 



feet 



1, 225. 800 



1, 150. 900 



575, 200 



531, 900 



Percent 

 35.2 



14 and 16-.. 



33.0 



18 and 20 



16.5 



22 and over . ..... 



15.3 









Total 



953, 500 



668, 700 



1, 433, 400 



144, 200 



237.40O 



46, 600 



3, 483, 800 



100.0 







Hardwood: 



258, 600 

 271, 500 

 512, 300 



214, 600 

 208, 900 

 233, 900 



89, 600 

 49, 800 

 36, 100 



13, 700 

 8,200 

 5,400 



21, 800 



8,700 



700 



500 



598, 800 

 547, 100 

 788, 400 





Hand 16 



30.9 



18 and 20 



28.3 



22 and over ..... ... ... 



40.8 









Total 



1,042,400 



657, 400 



175, 500 



27, 300 



31, 200 



500 



1, 934, 300 



100.0 







Cypress: 



lOand 12 



91,600 

 113,000 

 116,800 

 257, 400 



114,000 

 121, 600 

 51, 700 

 124, 100 



63, 500 

 38, 400 

 8,900 

 9,400 



7,100 

 4,300 

 1,100 

 1,800 



15, 900 



8,100 



400 



2,600 



1,200 



1,300 



600 



293, 300 

 286, 700 

 179, 500 

 395. 300 



25.4 



Hand 16 



24.8 



18and20 



15.5 



22andover _ _ _. 



34.3 









Total 



578, 800 



411,400 



120, 200 



14, 300 



27, 000 



3,100 



1. 154, 800 



100.0 







Total pine 



Percent 

 27.4 

 53.9 



50.2 



Percent 

 19.2 

 34.0 

 35.6 



Percent 

 41.2 

 9. 1 

 10.4 



Percent 

 4. 1 

 1.4 

 1.2 



Percent 

 6.8 

 1.6 

 2.3 



Percent 

 1.3 

 (') 

 0.3 



Percent 

 100.0 

 100.0 

 100.0 





Total hardwood.. . ... 





Total cypress . ...... 









Negligible. 



27 



