Article

 

Predicting branch diameters on second-growth Douglas-fir from tree-level descriptors Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/ms35t892q

Descriptions

Attribute NameValues
Creator
Abstract
  • The quality of lumber and veneer recovered from logs of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) is directly influenced by the maximum limb size attained on the crop tree. Because limb sizes are influenced by standdensity regimes, a need has arisen for quantitative tools that link a wide array of silvicultural regimes to wood-product quality by accounting for silvicultural effects on crown development. An equation for estimating maximum branch size at a given level within the live crown was developed from data collected on 96 felled sample trees in the Coast Ranges and Cascade foothills of Oregon and Washington. Height and basal diameter of the largest branch within each live whorl were measured on each felled tree, and a predictive equation was developed by various regression techniques. The final mixed-effects nonlinear model estimates maximum branch size as a function of depth into crown and tree diameter at breast height, height, and live crown length.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Douglas A. Maguire, Stuart R. Johnston, and James Cahill. 1999. Predicting branch diameters on second-growth Douglas-fir from tree-level descriptors. Can. J. For. Res. 29: 1829–1840.
Journal Title
Journal Volume
  • 29
Journal Issue/Number
  • 12
Academic Affiliation
Rights Statement
Publisher
Peer Reviewed
Language
Replaces

Relationships

Parents:

This work has no parents.

Items