3338 Chapter 27 



Table 27-11 — Yields per acre for upland oaks; no thinning (Gingrich 1971) 



^The diameter of the tree of average basal area. 



^Total cubic-root volume of entire stem, including bark, tip, stump, but no branches. The 

 equation: Cubic volume = 0.60 + 0.00249 D^H. 



^Standard cords to a 4-inch top inside bark, excluding bark and branches. The equation: Cord 

 volume = 0.00532 + 0.02275 D^H/IOOO. 



'^Board-foot volume. International '/4-inch rule, to an 8.5-inch top, outside bark. The equation: 

 Board-foot volume = -41.046 -I- 0.01161 D^H. 



^Site index = tree height in feet at age 50 years. 



