680 likes | 809 Views
“Working Forest” Silviculture. 2012 Reforestation Council October 11, 2012 James D. Arney, Ph.D. Forest Biometrics Research Institute www.forestbiometrics.com. Cost Survey of “Working Forests”. Confidential Requests for Operating Costs
E N D
“Working Forest”Silviculture 2012 Reforestation Council October 11, 2012 James D. Arney, Ph.D. Forest Biometrics Research Institute www.forestbiometrics.com
Cost Survey of “Working Forests” • Confidential Requests for Operating Costs • Responses from Private, Corporate, Tribal and Public Ownerships. • Responses from Washington, Oregon, California, Idaho and Montana. • Site Preparation, Planting, Brush Control • Pre-commercial and Commercial Thinning • Final Harvest and Fixed Annual Overhead
Economic Parameters • Annual Administrative Cost – $23.71 /Acre • Site Preparation – $103.80 /Acre • Planting – ($139 + $0.36 / Tree) /Acre • Vegetation Control – $140 /Acre • PC-Thin – ($98.62 + 0.11 x #Trees)/Acre • Harvest Cost – ($225 – $0.75/Mbf) /Mbf • Log Values – $280 to $450/Mbf by Sort
Apply Costs & Revenues • Yield Comparisons – • Site Classes 70 and 110 (4 and 8 meters/decade) • Clear-cut versus Seed-tree Regimes • Plantation versus Natural Regen w/fill-plant • Intensive versus Minimal Vegetation Control • Impacts of – • Pre-commercial Thinning & Species Selection • Stand Clumpiness (35% - 96% Occupied) • Stand Stockability (15% - 100% Stockable)