HARVESTING COSTS IN THE SOUTH o Cubbage(1983) Harvesting System Simulator (Stuart 1981) o Wang et al. (1998) GIS modelling framework o Kluender et al(1998)removal intensity and tree size on harvesting costs and profitabilityHARVESTING COSTS IN THE SOUTH u Cubbage(1983) Harvesting System Simulator (Stuart 1981) u Wang et al.(1998) GIS modelling framework u Kluender et al.(1998) removal intensity and tree size on harvesting costs and profitability