Measures and yields of products and residues 



3269 



cubic foot of green tree portions of five important southern oaks, sweetgum, and 

 yellow-poplar in the Southeast; table 8-1 A gives green moisture contents of 

 these tree portions. With this knowledge, plus an estimate of the cubic foot 

 content of solid wood (tables 27-1, 27-2; figs. 27-1, 27-2) and bark (table 27-3) 

 in a cord, it should be possible to compute an approximate weight for cordwood 

 of any species. The specific gravity of bark is given in chapter 13; some weights 

 for standard rough cords of oak are computed in table 13-24. 



30 40 50 60 70 

 TOTAL AGE (YEARS) 



80 90 



100 



Figure 27-6. — Yield per acre fully stocked with upland oaks, in cubic feet of merchanta- 

 ble stem including bark (to a 4-inch top outside bark) showing trends with age by 50- 

 year site index, SI. (Drawing after Schnur 1937.) 



