Research Branch

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The Effect of the Silviculture Survey Parameters on the Free-Growing Decision Probabilities and Projected Volume at Rotation

Author(s) or contact(s): W.A. Bergerud
Source: Research Branch
Subject: Silviculture General
Series: Land Management Handbook
Other details:  Published 2002. Hardcopy is available.


This handbook discusses the silviculture survey system used by the B.C. Ministry of Forests to assess stands for free-growing status. The silviculture survey system is reviewed, and the decision curve as a statistical tool to assess risk is explained. Decision curves are used to explore the effects of changes to survey parameters, as determined by a simulation study of homogeneous stem maps.

Projected volumes for homogeneous lodgepole pine stands (based on TASS, a growth and yield model) are also presented and discussed. The simulation study did not investigate the effects of disease, infestation, or brush competition on volume: all trees were assumed to be healthy and unimpeded by vegetation.

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Updated April 26, 2007