Prism cruising with diameter classes: Theoretical considerations and practical recommendations.

Abstract

Abstract

The usual formulas for estimating tree density from prism cruise data presume that dbh has been measured exactly. In practice, trees are often tallied by diameter class using inexact measurements. Without further information, this can bias estimates of tree density, especially for trees of small diameter or trees in wide diameter classes. Here, tables of expansion factors that utilize prior information about stand diameter distribution are presented and compared with conventional methods of estimating tree density. The context of the cruise, and assumptions about the stand, have important implications for measurement and calculation protocols in prism cruising.

Department

Natural Resources and the Environment

Publication Date

2000

Journal Title

Northern Journal of Applied Forestry

Publisher

NRC Press

Document Type

Article

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