Author： Furnival George M. Valentine Harry T. Gregoire Timothy G.
Publisher： Society of American Foresters
ISSN： 0015-749X
Source： Forest Science, Vol.32, Iss.4, 1986-12, pp. : 1073-1078
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Abstract
Importance sampling is proposed as a technique for estimating log volume that eliminates the bias of conventional methods arising from irregular log taper. In a trial of the technique, the average relative sampling error for individual logs, based on a measurement of one cross-section per log, was 5.2%. To estimate an aggregate volume, a two-stage sampling procedure is suggested in which importance sampling constitutes the second stage. Optimal sampling strategy is discussed briefly. Forest Sci. 32:1073-1078.
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