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Creator:: Graham, R. D. (Robert D.), Wilson, M. M., Oteng-Amoako, A., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: 1 07 A45J' P1,.71 cop .7 COMPACT orrosion My R. D. Graham M. M. Wilson A. Oteng-Amoako Forest

Creator:: Newton, Michael, 1932-, Zedaker, Shepard M., and Oregon State University. Forest Research Laboratory
Abstract:: "An important limitation In the study of tree roots has traditionally been the time necessary to excavate roots without injuring their fine structure. Thus, many root studies have been based on small samples and consequently contain large errors of estimation. This Note describes how large numbers of root systems from...
Resource Type:: Technical Report
Full Text:: RE1'EAPH LABORATORY EXCAVATING ROOTS WITH EXPLOSIVES MICHAEL NEWTON SHEPARD M. ZEDAKER INTRODUCTION

Creator:: Oregon State University. Forest Research Laboratory, Morrell, Jeffrey J., 1955, and Giron, M. Y.
Resource Type:: Other
Full Text:: OR HEO/F76i al Publication 23 2 .4Sp3 :23 c.3 A 0 0 00 3 06 0

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:: growth models (Stage 1973. Wykoff et aL 1982, Wensel and Koehler 1985). It is also used to provide

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
Full Text:: USED IN HARVESTING WORK STUDIES by Eldon D. Olsen Mohammad M. Hossain Mark E. Miller The Forest

Creator:: Weikel, Jennifer M., Hayes, John P. (John Parker), and Oregon State University. Forest Research Laboratory
Abstract:: Fifty-seven species of wildlife rely on or frequently use snags for breeding, roosting, or denning in Oregon and Washington. Several publications offer information on use of snags by wildlife, influence of management activities on snags and snag users, and approaches to managing snags to benefit wildlife. Because of the diverse...
Resource Type:: Technical Report
Full Text:: Jennifer M. Weikel and John P. Hayes Photograph by Rebecca Goggans

Creator:: Loucks, Donna M., Knowe, Steven A. (Steven Alan), 1954-, Shainsky, Lauri J., Pancheco, Alex A., and Oregon State University. Forest Research Laboratory
Abstract:: This annotated bibliography was compiled to provide a comprehensive list of sources on the ecological factors that affect forest regeneration. Abstracts from 494 publications are indexed by author, species, and subject, and are arranged into 4 major sections. Topics include the effects of biotic factors, abiotic factors, and stand and...
Resource Type:: Technical Report
Full Text:: BiBliogRaphy oF seleCted eCologiCal liteRatuRe by Donna M. Loucks Steven A. Knowe Lauri J. Shainsky Alex

Creator:: Filip, Gregory M., Kanaskie, Alan, Kavanagh, Kathleen L., 1955-, Johnson, Greg, Johnson, Randy (G. Randy), Maguire, Douglas A. (Douglas Alan), and Oregon State University. Forest Research Laboratory
Abstract:: For the past ten years, Douglas-fir on the Oregon and Washington coast has shown a progressive decrease in height and diameter increment as a result of Swiss needle cast, which is caused by Phaeocryptopus gaeumannii. In this contribution, we discuss the effects of silvicultural operations on Swiss needle cast and...
Resource Type:: Technical Report
Full Text:: infected (Kanaskie et al. 1998; Hansen et al. 2000). A similar survey in coastal Washington found 200,000

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:: also be used to determine levels of competing vegetation in young conifer plantations (Ross et al. 1986

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:: (Holdaway �984, Ritchie and Hann �985, Wykoff �986, Wensel et al. �987, Dolph �988). The choice of which

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