stands are utilizable for their crops of saw-timber, 

 poles, cross ties, and pulpwood. The increase in 

 sound material on all trees 5 inches d. b. h. and 

 larger, including the annual cut, was 303 million 

 cubic feet. 



In 1935 there were 175 active sawmills in the 

 unit, 72 percent of which were cutting pine only. 

 The total lumber production was 644 million board 

 feet, more than half of which came from old-growth 

 stands. Sixty-five percent of the lumber produced 

 was sold within the State boundaries. The pro- 

 duction of cross ties, veneer, cooperage stock, and 

 poles are the other important primary wood-using 

 industries. Fuel-wood production was a large 

 factor in wood use. Forest industries furnished in 

 the unit during 1935 over 3 million man-days of 

 labor, equivalent to over 13,000 man-years if 250 

 days are considered a full year. More than half 

 of this labor was consumed by the lumber industry. 



The drain from saw timber trees amounted to 

 814 million board feet in 1935; the total drain from 

 material of all sizes aggregated 150 million cubic 

 feet. 



During 1935 there was a net increase of 454 

 million board feet in the growing stock, represent- 

 ing the surplus of increment left after commodity 

 drain, i. e., the volume of timber cut from the 

 forests of the unit for commercial and domestic 

 use, had been deducted. Commodity drain was 

 over three times the net increment in the old- 

 growth pine, while in the second-growth sawlog- 

 size pine the drain was about 40 percent of the 

 growth. This means that future supplies of saw 

 timber must soon come entirely from the lower- 

 quality second-growth stands. In the hardwoods 



a somewhat similar relation existed between incre- 

 ment and drain, with the result that the less valu- 

 able second growth will be the inevitable source 

 of hardwood saw timber in the not-far-distant 

 future. The cubic-foot increment of all sound 

 trees, both saw timber, and nonsaw timber, ex- 

 ceeded the commodity drain by 153 million cubic 

 feet. 



Special Resources 



Pulpwood. — In the survey unit there are in species suit- 

 able for pulping nearly 65 million cords of material, 69 

 percent of which is pine and 31 percent pulping hardwoods. 

 Twenty-one million cords of this total are in saw-timber 

 material from trees at least 13 inches in diameter; 35 mil- 

 lion cords in trees under 13 inches; slightly over 5 million 

 cords in upper stems and limbs of the larger trees; and 3 

 million cords in sound and rotten cull trees over 5 inches 

 in diameter. Part of the material in the last two items is 

 available for pulpwood and fuel wood. Increment in 

 second-growth pine types of sawlog-size stands approximates 

 0.9 cord per acre per year. 



Poles and piles. — There are 35 million pine trees (the 

 volume of which is included also in the cordwood and saw- 

 timber estimates) suitable for poles and piles. Seventy per- 

 cent of these are in the 20- and 25-foot lengths. About 20 

 percent of the pine trees 7 to 19 inches in diameter were 

 found suitable for poles or piles (table 21). 



Gum naval stores. — Only two tracts, totaling 350,000 

 acres, are suitable for naval stores operations. They could 

 maintain an operation of 50 to 60 crops by progressive 

 working over a period of several years. 



Wood naval stores. — Suitable supplies of merchantable 

 longleaf stumps are found on 612,400 acres. Available 

 volume amounts to 1,938,000 tons, equivalent to 78,000 

 tons annually for 25 years. In addition, there are 1,726,000 

 tons of well-seasoned stumps intermixed with standing 

 timber, and probably about 700,000 tons of stump wood in 

 old-growth trees now standing. 



