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Browsing College of Forestry/Oregon Forest Research Laboratory (FRL) by Title

Browsing College of Forestry/Oregon Forest Research Laboratory (FRL) by Title

Now showing items 2388-2395 of 2395

X-ray computerized tomography of particleboard to predict through-thickness density profile

Gao, Hong (1990-03-12)

Particleboard is a widely used composite panel product consisting of consolidated wood particles and adhesive. On a macro level the panel appears to be homogeneous, however, its density varies both throughout the plan ...
Xylem cavitation in newly planted western hemlock (Tsuga heterophylla (Raf.) Sarg.) seedlings

Kavanagh, Kathleen L., 1955- (1993-07-01)

Reforestation of Pacific Northwest forest-lands with western hemlock has been hindered by unexplained plantation failures. The purpose of this thesis is to provide information that will help in determining the cause of ...
Xylem hydraulic safety margins in woody plants: coordination of stomatal control of xylem tension with hydraulic capacitance

Meinzer, F. C.; Johnson, D. M.; Lachenbruch, B.; McCulloh, K. A.; Woodruff, D. R. (Wiley-Blackwell, 2009)

1. The xylem pressure inducing 50% loss of hydraulic conductivity due to embolism (P50) is widely used for comparisons of xylem vulnerability among species and across aridity gradients. However, despite its utility as ...
Yarding delays for advanced logging systems

Dykstra, Dennis P.; Oregon State University. Forest Research Laboratory (Corvallis : Forest Research Laboratory, School of Forestry, Oregon State University, 1976-10)
Yarding system and carriage development: a case study

Sears, James Zolla (1975-03-07)
Yield and financial analysis of "New forestry" techniques on the McDonald and Dunn Forests

Bartlett, David M. (1993-08-16)

In the Pacific Northwest, a transition has begun that is shifting many practices in forest management. Traditionally, harvesting and regeneration has been done through clearcutting which removes all trees in the area bei ...
Yields of repeated high and low commercial thinnings of immature coastal Western hemlock

Hilt, Donald E. (1975-04-10)

Commercial thinnings in a 50-year-old stand of nearly pure, well stocked, even-aged western hemlock (Tsuga heterophylla) on the Hemlock Experimental Forest near Hoquiam, Washington, began in 1952 and ended in 1968. Th ...
Young stand thinning in Western Oregon : cost comparison of harvesting alternatives and comparison of time study techniques

Hossain, Mohammad Mozaffar (1998-05-15)

Harvesting costs were determined for commercial thinning of young stands to achieve vegetation and wildlife objectives. This included replicated comparisons of thinning treatments. Treatments were defined based on resi ...