feet or more per acre occupy 69 percent of the area and 

 include 91 percent of the saw-timber volume. Here, like- 

 wise, timberlands that support 5,000 board feet or more 

 per acre make up only 31 percent of the area, but contain 

 63 percent ot the saw-timber volume. 



Total Volume in Cords 



The total volume of sound material, including bark, and 

 the saw-timber material previously described, is 237 mil- 

 lion cords. This total is made up ot 101 million cords in 

 saw-timber material, 62 million cords in under-sawlog- 

 size trees, about 44 million cords in the tops and limbs of 

 saw-timber trees, and about 30 million cords in cull trees 

 (fig. 16). More than 77 percent of it is in hardwoods and 

 cypress, less than 23 percent in pines. Nearly' 98 percent 

 of the sound volume in cull trees, and more than 86 per- 

 cent of the volume in tops and limbs of saw-timber trees, 

 is in hardwoods and cypress material. The distribution 

 ot cordwood volume among the survey units is shown in 

 table 18 in the Appendix. 



Requirements for pulpwood, fuel wood, fence posts, and 

 similiar uses can largely be met with material ot small size 

 or ot quality interior to that required tor lumber, veneer, 

 etc. It must bt kept in mind, however, that much ot the 

 volume in under-sawlog-size trees should be reserved as 



growing stock for future saw timber, and that tops and 

 limbs ot saw-timber trees will not become available until 

 the trees are cut. A little more than 42 percent of the 183 

 million cords ot hardwoods and cypress is in soft-textured 

 species, generally considered more suitable for paper 

 manufacture. 



^ olume ot growing stock per acre by species groups is 

 shown tor the various forest type groups in figure 17. The 

 longleat-slash pine type group, which includes nearly all 

 the stands that have been clear cut, has the smallest 

 average growing-stock volume per acre, 3 cords; the short- 

 leaf-loblolly pine-hardwood type group has the largest, 

 12/4 cords. Ot the latter volume an average ot lOJii cords 

 per acre is in the species now considered suitable for the 

 manutacture of pulp, whereas the total tor the hardwood 

 type group includes only about 5 cords of sott-textured 

 species per acre. It should be borne in mind however, 

 that certain species not considered suitable for manutacture 

 pulp at present may eventually become acceptable tor that 

 use because ot new technical developments; the industry 

 already is using firm-textured hardwoods long considered 

 unpulpable. 



Naturally, volume ot growing stock per acre varies 

 according to age of stand and degree of stocking. In the 

 uncut second-growth sawlog-size timber it averages in the 

 neighborhood of 15 cords per acre, all Louisiana survey 



TYPE GROUP AND 

 SPECIES GROUP 



Longleof - slosh 

 pine types; 



Pines 



Hordwoods 

 All soecies 



Shortleof- loblolly- 

 hardwood types: 



PINES 



Hordwood types: 

 Pines 



Hordwoods 



All species 



Longleof -slosh 

 Shortleof-loblolly 



Figure 17. — Growing-stock volume in cords 

 per acre by species groups within major 

 type groups, 1934-35. 



6 8 



Cords per ocre 



20 



