Forest Inventory 



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THE TIMBFR inventory is expressed in board feet 

 (lumber tally), cords, and cubic feet. The board- 

 foot estimates include all the material that is of the 

 size and quality of saw timber. They represent usable 

 sawlog material only, deductions having been made tor 

 both woods waste and cull. The cordwood volume esti- 

 mates cover the sound material (including bark) in trees 

 under sawlog size to a top diameter outside bark that is 

 never less than 4 and seldom more than 8 inches, in tops and 

 limbs of saw-timber trees, and in culls. Estimates of total 

 sound material in cords embrace, in addition, total saw- 

 timber volume. The cubic-foot volume figures include 

 both the cubic volume of saw timber and the volume, 

 inside bark, of all other material covered by the cordwood 

 estimates. Special forest resources tor which estimates 

 were made in the survey ot Louisiana are poles and piles 

 (trees suitable for which are included in the timber-volume 



data), naval stores trees, and stumps available tor naval 

 stores production. 



Sau-- Timber VoliDne 



The volume ot saw timber in Louisiana totals 42.4 bil- 

 lion board teet. Of this total 36 percent is in pines and 64 

 percent in hardwoods and cypress (fig. 11). Loblolly pine 

 makes up more than half the pine volume, shortleaf pine 

 about one-tourth, and longleaf and slash pines practi- 

 cally all the remainder. Halt the hardwood saw-timber 

 volume is about equally divided among the r6d oaks, 

 sweetgum (redgum), and tupelos (fig. 12). Although it is 

 not commonly realized, two-fitths of the hardwood volume 

 is in stands situated within the pine units. As is shown in 

 table 5, virtually all the longleat pine saw-timber volume 

 occurs in the two south pine units; shortleat and loblolly 



State Total 

 (42.4 billion board feet) 



Data for southeast pine 

 included in southwest pine 



Figure 11. — Proportion of pine and hard- 

 wood (and cypress) in eac/i survey unit. 



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