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Equations for predicting diameter and squared diameter inside bark at breast height for six major conifers of southwest Oregon

Creator:: Larsen, David R. (David Rolf), Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: - and sectioned-tree data taken by the southwest Oregon Forestry Intensified Research (FIR) Growth and

A study of a stocking survey system and the relationship of stocking percent as determined by this system to number of trees per acre

Creator:: Bever, Dale N.
Abstract:: This study was initiated and designed, first, to determine the reliability of the stocking survey system, and, second, to construct free hand curves which would give the ratio of percent of stocking to number of trees per acre.
Resource Type:: Technical Report
Full Text:: "State Forest Research and Experimental Tax Act" became effective. This act provides for silvicultural

Estimating diameter inside bark at various heights in young Douglas fir trees

Creator:: Faqir Mohammad Khan, Bell, John F., Berg, Alan B., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: the George T. Gerlinger Experimental Forest administered by the Oregon State Forestry Department. n

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:: , California. California Forestry and Forest Products Publication No. 35. 8 p. BARNES, G.H. 1962. Yield of

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:: Forestry A Key to the LiterAture Presenting tree VoLume And tAPer equAtions for sPecies in the PAcific

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:: College of Forestry Oregon State University The Forest Research Laboratory of Oregon State University

Predicting merchantable volume in cubic feet to a variable top and in Scribner board feet to a 6-inch top for six major conifers of southwest Oregon

Creator:: Walters, David K., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: programs and through Labora- tory publications such as this, which are directed as appropriate to forest

Equations and tables predicting gross total stem volumes in cubic feet for six major conifers of southwest Oregon

Creator:: Hann, David W., Walters, David K., Clyde, Merlise A., and Oregon State University. Forest Research Laboratory
Abstract:: Equations and tables predicting gross total stem volumes in cubic feet are presented for Douglas-fir, grand fir, white fir, ponderosa pine, sugar pine, and incense-cedar. The data were gathered in second-growth, mixed-conifer stands of southwest Oregon. The basic equations use diameter outside bark at breast height and total tree height...
Resource Type:: Technical Report
Full Text:: form and taper of forest-tree stems. Imperial Forestry Institute, University of Oxford, England

Aerial photo-mensuration tables

Creator:: Dilworth, J. R. (John Richard), 1914-
Abstract:: Aerial photo cruising that can be accomplished quickly, cheaply and with a satisfactory degree of accuracy has been the goal of many forest mensurationists throughout the world. As early as 1925, photo cruising was accomplished successfully by Professor R. Hugershoff and his associates in Germany. The development of this technique...
Resource Type:: Technical Report
Full Text:: iENT STATION FOREST RESEARCH DIVISION Research Nbte Not 46 December, 1959 Forestry AERIAL PHOTO

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:: , increased use of forest products, and accelerated economic development of the State. Its scientists conduct

A user's guide for on-site determinations of stand density and growth with a programmable calculator

Creator:: Oregon State University. Forest Research Laboratory, Tappeiner, J. C. (John C.), Gourley, J. C. (Jonna C.), and Emmingham, William H.
Resource Type:: Technical Report
Full Text:: programs and through Labora- tory publications such as this, which are directed as appropriate to forest

Equations for predicting the height to crown base of six tree species in the central western Willamette Valley of Oregon

Creator:: Zumrawi, Abdel Azim M. A., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: This paper presents equations developed to predict the height to live crown base of six species in the central western Willamette Valley of Oregon. Weighted nonlinear regression was used to fit a separate logistic equation for each species. The predictor variables are total tree height, crown competition factor in trees...
Resource Type:: Research Paper
Full Text:: this and other Forest Research Laboratory publications are available from: College of Forestry Oregon

Equations for predicting basal area increment in Douglas-fir and grand fir

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: ct rese8.fc}ufading to rxpnie& forest yields, sncreased: use of ')rest prBdiiats, and accelbrated

Taper equations for six conifer species in southwest Oregon

Creator:: Walters, David K., Hann, David W., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: Copies of this and other Forest Research Laboratory publications are available from: Forestry Business

Enhanced height-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 height growth rate of a tree are presented for six conifer species from southwest Oregon. Equations for the combination of undamaged and damaged trees were estimated with weighted nonlinear regression techniques. These equations are being incorporated into the new southwest Oregon version of ORGANON, a...
Resource Type:: Technical Report
Full Text:: Editing, word processing, design, and layout by Forestry Communications Group. Recycled Paper The Forest

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:: Legislature to conduct research leading to expanded forest yield, increased use of forest products, and

Diameter growth equations for Douglas-fir and grand fir in the western Willamette Valley of Oregon

Creator:: Zumrawi, Abdel Azim, Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting diameter growth are an essential component of single-tree growth and yield models (Munro 1974). Diameter growth predictions are used to characterize individual-tree development and to project the growth of stand basal area and volume. Both diameter growth and basal area growth have been used as the dependent...
Resource Type:: Technical Report
Full Text:: and other Forest Research Laboratory publications are available from: Forestry Publications Office

Equations for predicting height to crown base for fourteen tree species in southwest Oregon

Creator:: Ritchie, Martin W., Hann, David W., and Oregon State University. Forest Research Laboratory
Abstract:: Equations are presented for predicting height to crown base (or bole ratio) for fourteen species of trees common to the mixed-conifer zone of southwest Oregon. Nonlinear regression was used to fit a weighted logistic function for each species. The independent variables include height, crown competition factor in larger trees, stand...
Resource Type:: Research Paper
Full Text:: California Forest Yield Cooperative, Department of Forestry and Resource Management, University of California

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:: , increased use of forest products, and accelerated economic development of the State. Its scientists conduct

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:: this and other Forest Research Laboratory publications are available from: Forestry Publications

ScholarsArchive@OSU

Equations for predicting diameter and squared diameter inside bark at breast height for six major conifers of southwest Oregon

A study of a stocking survey system and the relationship of stocking percent as determined by this system to number of trees per acre

Estimating diameter inside bark at various heights in young Douglas fir trees

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

Diameter growth equations for fourteen tree species in Southwest Oregon

Predicting merchantable volume in cubic feet to a variable top and in Scribner board feet to a 6-inch top for six major conifers of southwest Oregon

Equations and tables predicting gross total stem volumes in cubic feet for six major conifers of southwest Oregon

Aerial photo-mensuration tables

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

A user's guide for on-site determinations of stand density and growth with a programmable calculator

Equations for predicting the height to crown base of six tree species in the central western Willamette Valley of Oregon

Equations for predicting basal area increment in Douglas-fir and grand fir

Taper equations for six conifer species in southwest Oregon

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

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

Diameter growth equations for Douglas-fir and grand fir in the western Willamette Valley of Oregon

Equations for predicting height to crown base for fourteen tree species in southwest Oregon

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

Predicting height for undamaged and damaged trees in southwest Oregon

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