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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:: R e s e a r c h C o n t r i b u t i o n 2 9 F o r e s t R e s e a r c h L a b o r a t o r y

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting individual-tree height growth per 5-year period are presented for Douglas-fir, white fir, grand fir, ponderosa pine, sugar pine, and incense-cedar growing in the mixed-conifer zone of southwest Oregon. The data used to develop the equations came from 3,648 trees sampled from 391 stands in the study area....
Resource Type:: Research Paper
Full Text:: development of the state.; its scientists c uct this research in laboratories and forests administered by he

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: rity, wasThe Forest Research ? a or c y of Oregon eStablistieyd' by tlig Oregon Lc g slat re to covet

Creator:: Hann, David W., Larsen, David R., and Oregon State University. Forest Research Laboratory
Abstract:: Equations are presented that predict individual-tree 5-year diameter growth, outside bark, for 14 tree species in southwest Oregon. The data used to develop the equations came from 19,245 trees sampled from 391 stands in the study area. These equations express diameter growth as a function of diameter at breast height,...
Resource Type:: Technical Report
Full Text:: of any information or method disclosed in this report does not infringe privately owned rights; or (c

Creator:: Hann, David W., Riitters, K. H. (Kurt H.), and Oregon State University. Forest Research Laboratory
Abstract:: Tables are presented that summarize 108 published articles on forest growth and yield in the Pacific Northwest. Each table describes the form of the information presented, the species to which the information is applicable, the data sources used to develop the information, the data needed to predict growth and yield,...
Resource Type:: Technical Report
Full Text:: /mortality equations B Empirical yield tables H Whole-stand simulators C Stand growth tables I Single-tree/ D

Creator:: Hann, David W., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting the probability of a tree's dying in the next 5 years are presented for eight conifer and eight hardwood tree species from southwest Oregon. A logistic equation form was used to characterize the probability of mortality. The parameters of the equation were estimated using weighted, maximum likelihood...
Resource Type:: Technical Report
Full Text:: RC 34 cov N o v e m b e r 2 0 0 1 R e s e a r c h C o n

Creator:: Walters, David K., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: used to estimate the coefficients co, c1, c2, and C. for each species, and C$ was substituted for CB in

Creator:: Hann, David W., Wang, Chao-huan, and Oregon State University. Forest Research Laboratory
Abstract:: Models of stand growth and yield must include an estimate of mortality. For individual-tree/distance-independent growth-and-yield models. it is necessary (1) to predict the probability of death of individual trees and (2) to keep stand projections within reasonable biological limits (e.g., the maximum basal area that the stand can achieve). In...
Resource Type:: Technical Report
Full Text:: method disclosed in this report does not infringe privately owned rights: or (c) assumes any liabilities

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:: Untitled-2 D e c e m b e r 2 0 0 2 R e s e a r c h C o n t r

Creator:: Hann, David W. and Oregon State University. Forest Research Laboratory
Abstract:: Summaries from 49 published articles on site-index and dominant-height growth curves and equations are presented for 20 tree species or species groups found in California, Oregon, Washington, British Columbia, southeastern Alaska, Idaho, and western Montana. The summaries are organized by species. Each summary describes the modeling approach, type of curves/equations,...
Resource Type:: Technical Report
Full Text:: data from single measurements of height and age on each tree/plot. c. Regression analysis in which

ScholarsArchive@OSU