A suite of models consisting of height-age (site index), growth intercept, years-to-breast-height, juvenile height, and Site Index - Biogeoclimatic Ecosystem Classification (SIBEC) models are commonly used in British Columbia to estimate the height and site index of forest stands. Eighty plots of ponderosa pine stem analysis data were collected across the range of ponderosa pine in British Columbia. The years-to-breast-height, growth intercept, and juvenile height models were developed with these data. Height-age models were also developed, but are described elsewhere. The data were also used to further populate the SIBEC database. The growth intercept models were developed using standard techniques. The years-to-breast-height models used a slightly different functional form for the model. The juvenile height modelling technique was modified to more seamlessly splice the height curves into the height-age models.
Nigh, G.D.. 2007. Growth Intercept, Years-to-Breast-Height, and Juvenile Height Growth Models for Ponderosa Pine. British Columbia Ministry of Forests, Lands, Natural Resource Operations and Rural Development. Research Report (FLNRORD). TR2
Topic: FLNRORD Research Program
Keywords: Growth, Yield
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