Index Catalog // ScholarsArchive@OSU

Creator:: Marshall, David D., Johnson, Gregory P., and Hann, David W.
Abstract:: Crown profile equations were developed for stand-grown western hemlock (Tsuga heterophylla (Raf.) Sarg.) in northwest Oregon. The profile model uses a segmented approach, dividing the crown into an upper and lower portion at the point of the largest crown width (LCW). The model explains about 86% of the variation in...
Resource Type:: Article
Full Text:: northwestern Oregon David D. Marshall, Gregory P. Johnson, and David W. Hann Abstract: Crown profile

Creator:: Johnson, James W. and Oregon State University. Forest Research Laboratory
Abstract:: Fifteen large glued-laminated beams made from visually graded hem-fir lumber were designed, fabricated, and tested to failure in static bending. When tested, the beams had an average moisture content of 7.5 percent. The beams were 40 feet long, 5 1/8 inches wide and 24 inches deep. Before laminating, individual pieces...
Resource Type:: Technical Report
Full Text:: Visually Graded Hem-Fir Lumber by James W. Johnson April 1973 Research Paper 18 Forest Research

Creator:: Petrokofsky, Gillian, Avery, Bonnie E., Creighton, Janean, Johnson, Jim, Behan, Jeff, Frueh, W. Terry, Gaines, Lisa, and Wirth, Andrea A.
Abstract:: Systematic Evidence Based Review Workshop, May 7-9, 2013 (Corvallis, OR). Workshop materials and presentations.
Resource Type:: Other

Creator:: Oregon State University. College of Forestry, Plochmann, Richard, Flora, Donald F., Mitchell, John W., Sessions, John, Beuter, John, Greber, Brian, Johnson, K. Norman, and Lettman, Gary
Abstract:: The theme for the 1989 Starker Lectures concerned uncertainty surrounding forests and forestry in Oregon and the Pacific Northwest. It was a timely theme. Indeed, the uncertainties concerning trade-offs among commodity production and environment and the allocation of forest land, especially public lands, loom large as we enter the decade...
Resource Type:: Conference Proceeding
Full Text:: John Sessions, Brian Greber, and Norm Johnson (also advisor to Gover- nor Goldschmidt), John Beuter

Creator:: Argerich, A., Johnson, S. L., Sebestyen, S. D., Rhoades, C. C., Greathouse, E., Knoepp, J. D., Adams, M. B., Likens, G. E., Campbell, J. L., McDowell, W. H., Scatena, F. N., and Ice, G. G.
Abstract:: To examine whether stream nitrogen concentrations in forested reference catchments have changed over time and if patterns were consistent across the USA, we synthesized up to 44 yr of data collected from 22 catchments at seven USDA Forest Service Experimental Forests. Trends in stream nitrogen presented high spatial variability both...
Resource Type:: Article

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