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Incorporating additional tree and environmental variables in a lodgepole pine stem profile model


Byrne, John C. 1993. Incorporating additional tree and environmental variables in a lodgepole pine stem profile model. Western Journal of Applied Forestry. 8(3): 86-90.

A new variable-form segmented stem profile model is developed for lodgepole pine (Pinus contorta) trees from the northern Rocky Mountains of the United States. I improved estimates of stem diameter by predicting two of the model coefficients with linear equations using a measure of tree form, defined as a ratio of dbh and total height. Additional improvements were obtained by fitting this model to individual national forest data sets. Other tree and environmental variables tested but found of little use in improving stem profile estimates were crown ratio, habitat series, elevation, slope percent, and aspect.

Keywords: lodgepole pine, Pinus contorta, stem profile model


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Title: RMRS Other Publications: Incorporating additional tree and environmental variables in a lodgepole pine stem profile model
Electronic Publish Date: April 23, 2013
Last Update:
April 23, 2013

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