Multivariate analysis of distribution of four understory species along a gradient in Iodgepole pine and spruce fir forest
Multivariate analysis of distribution of four understory species along a gradient in Iodgepole pine and spruce fir forest
Charles D. Bonham, Javed Ahmed and Larry L. Larson
ABSTRACT
Vegetation sampling was conducted in lodge pole pine and
spruce-fir forests. Fifty stands were sampled to obtain
quantitative measurements of vascular plant species and
the physical attributes of the site. Data analyses
included principal component, McNaughton and Wolf's
niche index, and discriminate and canonical analyses.
The analyses techniques identified under story
sensitivity to aspect, elevation, and soil profile
attributes that influence soil moisture. The under story species studied exhibited a relative independence to
over story composition and dominance.
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September 1986
Vol. 36, Iss. 3
