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Articles containing the keyword 'trembling aspen'
Category : Research article
article id 521,
category
Research article
Gordon Nigh.
(2002).
Site index conversion equations for mixed trembling aspen and white spruce stands in northern British Columbia.
Silva Fennica
vol.
36
no.
4
article id 521.
https://doi.org/10.14214/sf.521
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Author Info
White spruce and trembling aspen are two important commercial species in British Columbia. They often grow in association, particularly in the Boreal White and Black Spruce and Sub-Boreal Spruce biogeoclimatic zones. Site index conversion equations are useful for estimating the site index of one species from the site index of another species. This study fills a need for site index conversion equations for mixed spruce/aspen stands. Seventy 0.01 ha study plots were established in mixed spruce/aspen stands. One site tree of each species was selected from each plot. The height and breast height ages of the site trees were measured and the site index was estimated with these data. The correlation between the site index of spruce and aspen was 0.6. Geometric mean regression was used to estimate the parameters of a linear site index conversion equation. The analysis did not reveal any differences in the conversion equations across the three major biogeoclimatic units (BWBSmw1, BWBSmw2, and SBS) that were sampled. Therefore, only one conversion equation is required.
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Nigh,
Ministry of Forests, Research Branch, P.O. Box 9519, Stn. Prov. Govt., Victoria, BC, Canada V8W 9C2
E-mail:
gordon.nigh@gems2.gov.bc.ca
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