Working forest silviculture
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“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

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“Working Forest” Silviculture

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Working forest silviculture

“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

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

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

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)


Working forest summary

“Working Forest” Summary

  • Silviculture (Early) is most important factor

  • Plantation yields approach twice Natural

  • Value is managed by Species selection

  • Don’t forget Initial costs (Admin & Silvics)

  • Sustainable Capacity is key to Max $ Flow


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