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Diameter growth equations for fourteen tree species in Southwest Oregon

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:: collected during the summers of 1981, 1982, and 1983 as part of the southwest Oregon Forestry Intensified

Equations for predicting the largest crown width of stand-grown trees in western Oregon

Creator:: Hann, David W. and Oregon State University. Forest Research Laboratory
Abstract:: Largest crown width (LCW) equations for stand-grown trees were developed for 14 tree species found in western Oregon. The equations are used in the growth-and-yield model ORGANON and in the stand-visualization program VIZ4ST. They were constructed such that LCW equals the maximum crown width of open-grown trees when the crown...
Resource Type:: Technical Report
Full Text:: : Forestry Publications Office Oregon State University 227 Forest Research Laboratory Corvallis, Oregon 97331

A key to the literature presenting site-index and dominant-height-growth curves and equations for species in the Pacific Northwest and California

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:: Forest Resources, Oregon State University, Corvallis. To Order Copies Copies of this and other Forest

A key to the literature presenting tree volume and taper equations for species in the Pacific Northwest and California

Creator:: Hann, David W. and Oregon State University. Forest Research Laboratory
Abstract:: Summaries from 49 published articles on tree volume and taper equations are presented for 39 tree species found in California, Oregon, Washington, British Columbia, southeast Alaska, Idaho, and western Montana. The summaries are organized by species and then by type of equation (volume or taper). Each summary describes the types...
Resource Type:: Technical Report
Full Text:: , Oregon State University, Corvallis. To Order Copies Copies of this and other Forest Research Laboratory

Cubic scaling handbook

Creator:: United States. Forest Service
Abstract:: Gerald W. Williams Collection
Resource Type:: Book

Extending southwest Oregon's Douglas-fir dominant height growth equation to older ages

Creator:: Hann, David W. and Oregon State University. Forest Research Laboratory
Abstract:: Hann and Scrivani (1987) developed dominant height growth equations for Douglas- fir in southwest Oregon using stem analysis data sets with an upper age of approximately 125 years at breast height. The objective of this study was to determine whether these equations could be extrapolated for ages of 250 years...
Resource Type:: Technical Report
Full Text:: and ponderosa pine in southwest Or- egon. Forest Research Laboratory, Oregon State University

Predicting height for undamaged and damaged trees in southwest Oregon

Creator:: Hanus, Mark L., Hann, David W., and Marshall, David D.
Abstract:: Equations for predicting tree height as a function of diameter outside bark at breast height are presented for various tree species common to southwest Oregon. Data for damaged and undamaged trees were analyzed with weighted nonlinear regression techniques. The effects of specific damaging agents and their severity on the height-diameter...
Resource Type:: Technical Report
Full Text:: DAMAGED TREES IN SOUTHWEST OREGON by ML Hanus DW Hann DD Marshall The Forest Research Laboratory of

Height-diameter equations for six species in the coastal regions of the Pacific Northwest

Creator:: Hanus, Mark L., Marshall, David D., and Hann, David W.
Abstract:: Three equations for predicting tree height as a function of diameter (outside bark) at breast height are presented for six species found in coastal regions of the Pacific Northwest. Foresters can use these “height–diameter” equations to avoid the time-consuming task of measuring heights of all individual trees in an inventory,...
Resource Type:: Technical Report
Full Text:: , Forest Research Laboratory, Oregon State University, Corvallis. Hann, DW, and J Scrivani. 1987. Dominant

Disaggregative and individual-tree growth models in theory and application

Creator:: Ritchie, Martin W.
Abstract:: Disaggregative and individual-tree/distance-independent modeling methods are compared and contrasted. Differences between the two are related to differences in functional and apparent resolution and may be illustrated using aggregation theory. When considering models of different levels of resolution describing a given phenomenon, invariance with respect to the aggregation implied (symmetry) may...
Resource Type:: Dissertation

Asymptotic height-diameter equations for twenty-four tree species in western Oregon

Creator:: Garman, Steven L. (Steven Lee), 1955-, Acker, Steven A., Ohmann, Janet L., Spies, Thomas A. (Thomas Allen), and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting height from diameter outside bark at breast height (DBH) were generated for 24 tree species in western Oregon. The equations were based on the asymptotic Chapman-Richards function. Because geographic location and site productivity may influence height-diameter relationships, height-diameter measures from 8727 plots were first grouped by site...
Resource Type:: Technical Report
Full Text:: , College of Forestry, Oregon State University, Corvallis, Oregon. Janet L. Ohmann and Thomas A. Spies are

ScholarsArchive@OSU

Diameter growth equations for fourteen tree species in Southwest Oregon

Equations for predicting the largest crown width of stand-grown trees in western Oregon

A key to the literature presenting site-index and dominant-height-growth curves and equations for species in the Pacific Northwest and California

A key to the literature presenting tree volume and taper equations for species in the Pacific Northwest and California

Cubic scaling handbook

Extending southwest Oregon's Douglas-fir dominant height growth equation to older ages

Predicting height for undamaged and damaged trees in southwest Oregon

Height-diameter equations for six species in the coastal regions of the Pacific Northwest

Disaggregative and individual-tree growth models in theory and application

Asymptotic height-diameter equations for twenty-four tree species in western Oregon

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