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Filtering by: Subject Trees -- Oregon%2C Southwest -- Growth Subject Trees -- Oregon -- Growth -- Mathematical models

Enhanced diameter-growth-rate equations for undamaged and damaged trees in southwest Oregon

Creator:

Hann, David W., Hanus, Mark L., and Oregon State University. Forest Research Laboratory

Abstract:

Equations for predicting the 5-yr diameter-growth rate of a tree are presented for eight conifer and nine hardwood tree species from southwest Oregon. Equation parameters for undamaged and damaged trees combined were estimated by weighted nonlinear regression. The resulting equation for Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] explained more than 71%...

Resource Type:

Technical Report

Full Text:

-RATE EQUATIONS FOR UNDAMAGED AND DAMAGED TREES IN SOUTHWEST OREGON by David W Hann Mark L Hanus
Predicting height to crown base for undamaged and damaged trees in southwest Oregon

Creator:

Hanus, Mark L., Hann, David W., Marshall, David D., and Oregon State University. Forest Research Laboratory

Abstract:

Equations for predicting height to crown base are presented for tree species from southwest Oregon. Equations for undamaged and damaged trees were estimated with weighted nonlinear regression techniques. The effects of specific damaging agents on the height to crown base were explored, and damage correction factors were estimated. The damage...

Resource Type:

Technical Report

Full Text:

DAMAGED TREES IN SOUTHWEST OREGON by Mark L Hanus David W Hann David D Marshall A p r i l 2 0 0 0