Crown profile equations for stand-grown western hemlock trees in northwestern Oregon

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/z316q2225

Descriptions

Attribute Name	Values
Creator	Marshall, David D. Johnson, Gregory P. Hann, David W.
Abstract	Crown profile equations were developed for stand-grown western hemlock (Tsuga heterophylla (Raf.) Sarg.) in northwest Oregon. The profile model uses a segmented approach, dividing the crown into an upper and lower portion at the point of the largest crown width (LCW). The model explains about 86% of the variation in crown width when LCW is known but only 66% when LCW is predicted using a model developed from a larger data set collected in the same area as the data for developing the crown profile models were collected. The model can be adjusted using measurements or predictions of LCW for western hemlock in other populations. Comparisons are made with the crown form of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco).
Resource Type	Article
DOI	https://doi.org/10.1139/x03-126
Date Available	2010-04-16T00:25:54+00:00
Date Issued	2003
Citation	David D. Marshall, Gregory P. Johnson, and David W. Hann. 2003. Crown profile equations for stand-grown western hemlock trees in northwestern Oregon. Can. J. For. Res. 33(11): 2059–2066.
Journal Title	Canadian Journal of Forest Research
Journal Volume	33
Journal Issue/Number	11
Academic Affiliation	College of Forestry
Urheberrechts-Erklärung	Copyright Not Evaluated
Publisher	NRC Canada
Language	English [eng]
Replaces	http://hdl.handle.net/1957/15477