96 



Table 5. — Scbdb Oak Type. Based on 23 Plots 



Table 6. — Upland Hardwood Type. Based on 34 Plots 



To convert cubic feet to cords divide by 86. 



To convert cubic feet to board feet multiply by 4.4. Since 10" 

 D. B. H. is taken as the minimum cutting diameter' limit, this converting 

 factor can only be applied to those stands where the average D. B. H. is 

 greater than 10 inches. Thus post oak has no merchantable B. F. con- 

 tents. Scrub oak and upland mixed hardwoods show merchantable board- 

 foot contents between 60 and 70 years. 



Yield Table for Even-aged Stands in Illinois 



(2) Bottomland Type 



Table 7. — Rapidly growing Species, Cottonwood, Sycamore. Soft Maple, 



