Predicted total-tree biomass of understory hardwoods

Abstract

Prediction equations and tables are presented for estimating total-tree green and dry weights and cubic -foot volumes of wood and bark of understory hardwoods 1 to 5 inches d.b.h. Eleven species common in the Mountains and Piedmont of the Southeast are described. Of these, yellow -poplar and sweetgum were lowest in green weights due to their low densities (specific gravity = 0.359 to 0.459), while the oaks, dogwood, and hickory were high in green weight due to high specific gravities (0.545 to 0.665). Total tree green weights ranged from 4 to 9 pounds for 1- inch trees to approximately 150 to 280 pounds for 5-inch trees. Total-tree green weight of wood and bark per cubic foot of wood ranged from 65 .2 pounds per cubic foot for yellow -poplar in the Mountains in North Carolina to 93.4pounds per cubic foot for hickory in the Piedmont in Georgia. The proportion of bark expressed as a percentage of dry weight ranged from 14.4 percent for dogwood in the Mountains to 28.7 percent for hickory in the Piedmont.

Citation

Phillips, Douglas R. 1981. Predicted total-tree biomass of understory hardwoods. USDA For. Serv., Res. Pap. SE-223, 22 p. Southeast. For. Exp. Stn., Asheville, N.C.