Index Catalog // ScholarsArchive@OSU

Creator:: Oregon State University. Forest Research Laboratory, Gholz, Henry L., Grier, C. C., Campbell, A. G., and Brown, A. T.
Abstract:: Reliable estimates of plant biomass and leaf surface area are essential for studying primary production, nutrient cycling, hydrology, wildlife management, and fire. This paper presents equations that can be used to make such estimates for most plant species-trees, shrubs, and herbs-dominant in western and central Oregon.' We also document the...
Resource Type:: Technical Report
Full Text:: industry, and to the general public. As a research paper, this publication is one of a series that

Creator:: Del Rio, Ernest, Berg, Alan B., and Oregon State University. Forest Research Laboratory
Abstract:: Growth was assessed for Douglasfir reproduction which had established naturally beneath three intensities of overstory thinning in a 65-year-old stand of Douglas-fir on the east side of the Oregon Coast Range. The age of advanced reproduction ranged from 4 to 15 years. Understory environments were described in terms of sunlight,...
Resource Type:: Technical Report
Full Text:: research paper, this publication is one of a series that describes a com- pleted study or experiment or

Creator:: Newton, Michael, 1932- and Oregon State University. Forest Research Laboratory
Abstract:: The response of western hemlock (Tsuga heterophylla [Raf.] Sarg.) to two methods of site preparation for planting was compared. One site was cleared of mature brush by the "brown-crush-and-burn" method. The other was partially cleared by spraying with herbicides. Seedlings lifted and planted in December, January, February, and April were...
Resource Type:: Technical Report
Full Text:: general public. As a research paper, this publication is one of a series that describes a com- pleted

Creator:: Hooven, Edward F. (Edward Frank), Black, Hugh C., 1941-, and Oregon State University. Forest Research Laboratory
Abstract:: Stands of brush and tree species of low commercial value dominate many potentially productive forest lands in western Oregon. Site preparation to reduce competition from such vegetation will improve the success of reforestation efforts, as well as reduce the cost of controlling small mammals that destroy seeds and seedlings. Site...
Resource Type:: Technical Report
Full Text:: . As a research paper, this publication is one of a series that describes a com- pleted study or lists

Creator:: Miller, Donald James, Graham, Robert D., and Oregon State University. Forest Research Laboratory
Abstract:: Eight series of untreated posts (including five series of steel), 18 series of nonpressure-treated posts, and II series of pressure-treated posts remain in test at the Oregon State University post farm in western Oregon. So far all posts have failed in 36 untreated series, 33 nonpressure-treated series, and 2 pressure-treated...
Resource Type:: Technical Report
Full Text:: Robert D. Graham April 1977 Research Paper 37 School of Forestrr t Forest Research Laboratory

Creator:: Froehlich, Henry A. and Oregon State University. Forest Research Laboratory
Abstract:: Monitoring soil density on three sites during repeated trips with a high-speed skidder showed that: During the first 20 trips, soil density primarily increased between depths of 2 to 4 inches; Density increased most during the first few trips; Density continued to increase slowly in amount and depth with the...
Resource Type:: Technical Report
Full Text:: Corvallis. Oregon 97331 research paper 36 Since 1941, the Forest Research Laboratory-part of the School

Creator:: Wilson, Robert L., Dykstra, Dennis P., Sessions, John, and Oregon State University. Forest Research Laboratory
Abstract:: A technique for solving efficiently the catenary problem encountered in surveying with tapes is presented. The theory of the catenary solution is outlined, and our technique is shown to solve correctly the catenary for all conditions. Analysis of error that compared the catenary correction to the more commonly used parabolic...
Resource Type:: Technical Report
Full Text:: Sessions Research Paper °35 December 1976 4 of fi17 88'- AUG2000;j O) OREGON STATE L- UNIVERSITY a»r

Creator:: Sessions, John and Oregon State University. Forest Research Laboratory
Abstract:: In recent years, a great deal of research in North America has been directed toward refining methods of assessing the load-carrying capability of skyline systems. Little effort has been directed, however, toward field measurement of cable tensions for skyline logging systems to facilitate initial tensioning of unloaded skylines or to...
Resource Type:: Technical Report
Full Text:: Field Measurement of Cable Tensions for Skyline Logging Systems John Sessions Research Paper 34

Creator:: Dykstra, Dennis P. and Oregon State University. Forest Research Laboratory
Abstract:: Yarding delays add significantly to the time and cost required to obtain a given quantity of timber. In this study, they increased total yarding time by as much as 28 percent. As yarding system complexity increases, the frequency of delays can also be expected to increase. For one balloon yarding...
Resource Type:: Technical Report
Full Text:: Delays for Advanced Logging Systems ti Dennis P. Dykstra Research Paper 33 October 1976 7 ' 9Fc'I

Creator:: Zaerr, Joe B., Lavender, Denis P., and Oregon State University. Forest Research Laboratory
Abstract:: Results reported here are from a large study designed to evaluate the effects of certain nursery procedures on subsequent survival of Douglas-fir seedlings. The effects of storage conditions and lifting dates were reported elsewhere (9). The determination of the optimum size of seedling for planting on different sites has been...
Resource Type:: Technical Report
Full Text:: Size and Survival of 270 Douglas-Fir Seedlings Joe B. Zaerr Denis P. Lavender Research Paper 32

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