Models are developed to predict top height, site index, and years to breast height for western redcedar (Thuja plicata Donn) on interior sites. Stem analysis and ecological data were collected from 46 plots in the Interior Cedar-Hemlock and Interior Douglas-fir biogeoclimatic zones. Four site trees were stem analyzed from each 0.04-ha plot. These data were converted into top height-breast height age, growth intercept, years to breast height, and site index data. A site index, growth intercept, and years to breast height model were then fit to the data. When faced with a choice of models, a graph of the models' relative accuracy assists in selecting the appropriate model.
Nigh, G.D.. 2008. Western redcedar site index models for the interior of British Columbia. British Columbia Ministry of Forests, Lands, Natural Resource Operations and Rural Development. Research Report (FLNRORD). RR18
Topic: FLNRORD Research Program
Keywords: Growth, Yield
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