A Gamma-Poisson model for vertical location and frequency of buds on lodgepole pine (Pinus contorta) leaders

摘要: The aim of this work was to model the vertical location and number branch primordia (buds) on leader lodgepole pine (Pinus contorta Doug. ex Loud.) trees in central British Columbia. For species such as pine, where branches occur clusters rather than individually, Gamma-Poisson provides a natural framework for describing simulating distribution buds annual shoot. Parameters are identifiable with measurable attributes, that is, average per unit length shoot cluster, can be related explanatory variables via log link. Applicability demonstrated sample 58 ranging age from 29 103 years old. agreement between observed expected cluster counts spacing, sizes, total good. Height crown base were selected best predictors ...