Index Catalog // ScholarsArchive@OSU

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:: . DC. Tanoak Lithocarpus densiflorus (Hook & Arn.) Rehd. Oregon white oak Quercus garryana Dougl. ex

Creator:: Wagg, John William Bruce, Hermann, Richard K., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: feasible. 4 ARTIFICIAL SEEDING OF PINE IN CENTRAL OREGON by J. W. Bruce Wagg Richard K. Hermann

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: This report describes initial results of a yarding time study for the Pansy Basin Study, a cooperative research project designed to test the performance of skylines, balloons, and helicopters operating under various conditions of timber and terrain, and over a range of silvicultural and landscape design prescriptions. Observations during the...
Resource Type:: Technical Report
Full Text:: . . . . . . . . . . . . . . . .21 Regression Hypotheses for Hook Time . . . . . . . . . . . . . . . . .24 Regression Equations for

Creator:: Hobbs, Stephen D. and Oregon State University. Forest Research Laboratory
Abstract:: One-year-old container-grown Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] seedlings were outplanted on north, east, south, and west aspects on steep, skeletal Xerochrepts in southwest Oregon. After 2 years, survival rates were highest on north and south aspects, but biomass production (dry weight) was greatest on the west aspect. Shadecards, used to...
Resource Type:: Technical Report
Full Text:: (Hook E Arn.) Redh.], canyon live oak (Quercus chrysolepsis Liebm.), western rho- dodendron

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:: chrysophylla [Dougl.] A.DC.) Tanoak (Lithocarpus densiflorus [Hook and Am.] Rehd.) Pacific madrone (Arbutus

Creator:: Olsen, Eldon D., Hossain, Mohammad M., Miller, Mark E., and Oregon State University. Forest Research Laboratory
Abstract:: Work-study guidelines were developed using field data from thinning sites in the Oregon Cascade Range. Regression of detailed time study and shift-level data predicted harvesting production rates. Statistical analysis showed the relative difference in the discriminating power between shift-level studies versus detailed time studies. Indicator variables tested if there were...
Resource Type:: Technical Report

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:: Abies procera Rehd. Oregon white oak Quercus garryana Dougi. ex Hook Pacific madrone Arbutus menziesii

Creator:: Ross, Darrell W. and Oregon State University. Forest Research Laboratory
Abstract:: Regression equations for estimating the aboveground biomass (ovendry weight) of individual plants of 10 shrub and 2 pine species were developed from data collected in south central Oregon. All include a single independent variable and were generated from logarithmically transformed data. Total aboveground biomass of each shrub species is predicted...
Resource Type:: Technical Report
Full Text:: hollygrape, Berberis repens Lindl.; snowbrush ceanothus, Ceanothus velutinus Dougl. ex Hook.; rabbitbrush

Creator:: Graham, R. D. (Robert D.), Helsing, Guy G., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: coring or drilling. When the rod is pulled back with pressure against the side of the hole, the hook at

Creator:: Hobbs, S. D. (Stephen D.), Helgerson, O. T., Southwest Oregon Forestry Intensified Research Program, and Oregon State University. Forest Research Laboratory
Resource Type:: Conference Proceeding

ScholarsArchive@OSU