THE SOUTHEBN CYPRESS. 



57 



LOW VALUE OP LAND AND GROWING STOCK. 



It has been shown (p. 52) that uncleared and undrained lands 

 covered with stumps and a mass of surface roots are of low and 

 generally uncertain value, and that the cost of draining and clearing 

 is somewhat more than the present value of similar cleared and 

 drained lands. The actual present value of the timber left on the 

 land after conservative cutting is very small compared with its 

 potential value. 



The figures given in Table 15 apply to the cypress in a typical mixed 

 cypress and hardwood stand, cutting an average of approximately 

 12,500 board feet of cypress per acre. This is a safe average for 

 medium mixed cypress, since pure cypress often cuts from 15 to 25 

 thousand board feet over large areas. It should be noted that the 

 volume of the trees 16 mches and over in diameter constitutes 94 per 

 cent of the stand. By cutting to a diameter limit of 18 inches, the 

 amount of merchantable thnber left standing on the average will 

 likely amount to between 8 and 10 per cent of this particular stand. 

 In other stands not so well stocked with younger classes it will be less. 



Table 15. — Cypress trees by diameter classes and corresponding volumes in a representa- 

 tive stand. 1 



Diameter (breast- 

 high). 



Trees per 

 acre. 



, Volume per acre 

 (Doyle rule). 



Per cent 

 of total 

 stand. 



Average Total 

 tree. stand. 



Inches. 

 1 to 5 



10. 

 11.0 

 9.8 

 8.2 

 5.4 

 3.9 

 2.0 

 1.4 

 .2 

 .1 



Board feet. 



Board feet. 





6 to 10 



4 



72 



200 



413 



760 



1,121 



1,476 



1,821 



2,100 



44 



700 



1,040 



2,230 



2,904 



2,242 



2,066 



364 



216 



0.3 



5.7 



13.1 



17.9 



23.8 



18.0 



16.6 



2.9 



1.7 



11 to 15 



16 to 20 



21 to 25 



20 to 30 



31 to 35 



36 to 40 



41 to 45. . 



46 to 50 



Total 



58.0 





12,472 



100. 







1 Cypress in mixture with hardwoods (about one-third of the latter); 21 trees per acre of cypress 10 inches 

 and over in diameter. Representative ol large tracts in Florida and Louisiana. 



In the above representative stand with a good stocking of young 

 tr< i . 5.7 per cent of the volume is contained in the trees from 11 to 

 15 inches in diameter. A diameter limit of 16 inches in this stand 

 would mean Leaving approximately 750 board feet, or a value of 

 $3.75, at iin average stumpage rate of $5 per thousand feet. The 

 combined value of land and timber left in cutting to a L 6-inch diameter 

 limit will probably average generally between $4 and $7 per acre. 



Lumbermen in very many cases fail to consider fairly the very low 



relative Stumpage Value of limber in the small sizes. Small trees 



obviously are utilized at relatively little profit, or often at a loss, 



