Canadian Forest Service Publications
Preliminary site index equations for three planted species in northern Ontario. 1995. Payandeh, B.; Wang, Y. Northern Journal of Applied Forestry 12(2): 57-63.
Issued by: Great Lakes Forestry Centre
Catalog ID: 21406
Availability: PDF (request by e-mail)
Stem analysis data from plantations of black spruce, white spruce, and jack pine from northern Ontario were fitted to base-age specific and base-age invariant site index models. The resulting equations and their respective parameters were compared via nonlinear analysis of covariance. The base-age specific models produced a somewhat better fit to the data than their base-age invariant counterparts, although the latter are considered theoretically more elegant. Graphical comparison of plantation and natural stand site index curves for the three species showed both similarities and differences.