Timber Management is important a good stand of prime timber can yield 100 per acre per year adveraged over 30yrs
Do Not Buy a Piece of Property with Timber Reserve.
States vary in the way they define farms.
Ag. farms typicaly have the best tax breaks ther are also alot of other programs you can get into depending on availability in your state
http://www.doubleaquailplantation.com/south_carolina_bob_white_quail_habitat_restoration .html