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Article
Modelling changes in the merchantability of individual trees in tropical rainforest
Commonwealth Forestry Review
  • Jerome K Vanclay, Southern Cross University
Document Type
Article
Publication Date
1-1-1991
Abstract

The deterioration of merchantable trees over time is often assumed to be negligible in growth models and yield calculations. Although the annual probability of becoming unmerchantable is small, the cumulative probability over a cutting cycle is significant, and should be included in yield studies.

Logistic regression analyses of permanent sample plot data revealed that changing merchantability can be modelled using species, stand basal area, tree size and time since last logging. The equation developed for the rainforests of north Queensland indicates that up to ten percent of trees may become unmerchantable during a forty year cutting cycle.

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Citation Information
Vanclay, JK 1991, 'Modelling changes in the merchantability of individual trees in tropical rainforest', Commonwealth Forestry Review, vol. 70, no. 3, pp. 105-111.

The abstract and pdf of the published article reproduced in ePublications@SCU with the permission of Commonwealth Forestry Review