[Fraxinus]

Foresters only count the number of individual trees when doing a 100% tally for sale, 100% tallies are only done on smaller finite blocks, and not done for every sale. Forestland figures are based on acreage with the Density (#of trees per unit area) changing by forest type, age of stand, site index (fertility), and type and severity of last disturbance.

[Muleteam1]

Exactly. It’s like a hardware store with bins of hardware from which quantities of hardware are sold daily. The store knows how many pieces of hardware it sells, it just never knows exactly how many pieces it has left. It would be a system of bookkeeping totally unacceptable to the IRS if the USFS were held to the same standards to which American businesses are held.