Index Catalog // ScholarsArchive@OSU

Wetting as a predictor of surface inactivation for platen dried Douglas-fir veneer

Creator:: Kadlec, Kim Michael
Resource Type:: Masters Thesis

Weibull diameter distribution models for managed stands of Douglas-fir in Washington and Oregon

Creator:: Eng, Helge
Abstract:: The two-parameter Weibull function was used to predict forest stand diameter distributions and growth. Diameter distribution models were developed for even-aged Douglas-fir stands, 20 to 40 years old, in Oregon and Washington. In order to test if the two-parameter Weibull function can adequately describe the diameter distributions of such stands,...
Resource Type:: Masters Thesis

Water relations and the root regeneration response of Douglas-fir

Creator:: Cobb, Cheryl Anne
Abstract:: The effect of lifting date and root-pruning treatments on water potential, root regeneration, and shoot growth of six-month-old and three-year-old Douglas-fir seedlings bare-root transplanted into a growth chamber, and sawdust bed, respectively, was studied. Root growth in six-month-old and three-year-old seedlings was highest in February and August respectively. Survival was...
Resource Type:: Masters Thesis

Vegetative factors influencing the germination and survival of Douglas-fir seeds and seedlings in the Tillamook Burn

Creator:: Lavender, Denis P.
Resource Type:: Masters Thesis

Vegetation-environmental relationships on two clearcuts on the western slopes of the Oregon Cascades

Creator:: Egeland, Dawn M.
Abstract:: Douglas-fir and western hemlock growth and stocking were examined on two neighboring clear-cut watersheds in the Western Cascades of Oregon and related to the intensity of burning and logging disturbance, habitat type, soil type, aspect and the influence of percent cover of both invading Ceanothus species and residual Acer circinatum....
Resource Type:: Masters Thesis

Use of alternative costs in determining the economic rotation age of Douglas-fir

Creator:: Dahl, Fredrick Henry
Resource Type:: Masters Thesis

Ultrastructural study of the embryo during germination involving douglas fir (Pseudotsuga menseizii Franco) seeds

Creator:: Hsu, Kay Yong-Yong
Abstract:: The seeds of Douglas fir, a representative of the gymnosperm flora, were studied at six stages of germination to discern the structures of food reserves and to study ultrastructural changes occurring during germination in the embryo and resulting seedlings. The materials were fixed in three fixatives, dehydrated with ethanol series,...
Resource Type:: Masters Thesis

Two studies of Acer macrophyllum : I. The effects of bigleaf maple on soils in Douglas-fir forests : II. The ecology of bigleaf maple seedling establishment and early growth in Douglas-fir forests

Creator:: Fried, Jeremy Steven
Abstract:: Bigleaf maple (Acer iaacrophyllunt) is a deciduous, persistent, sprouting species that frequently accounts for as much as 20% of the basal area in Douglas-fir forests. Because of the lack of knowledge of the role of bigleaf maple in Douglas-fir forest ecosystems and the problems that it poses as a vigorous...
Resource Type:: Masters Thesis

Top-Down Effects of Wildlife and Bottom-Up Drivers of Soils and Productivity in Intensively Managed Forest Plantations in the Northern Oregon Coast Range

Creator:: Frey, David W.
Abstract:: In intensively managed forest plantations in the northern Oregon Coast Range, herbicides are often applied during site preparation and early stand regeneration to reduce competition for resources for planted conifer seedlings. In addition to reducing competition for crop trees, herbicide applications may affect soil processes including decomposition and nutrient cycling,...
Resource Type:: Masters Thesis

Time-dependent deflection of Douglas fir beams in bending and shear modes

Creator:: Capell, Harry Thomas
Abstract:: Creep in wood has been observed since 1833 but only recently has it been studied quantitatively. The aim of this paper is to study the time-dependent deflections of Douglas fir, Coast Region beams in bending and shear modes. The general method of approach used is that of large scale observation....
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Wetting as a predictor of surface inactivation for platen dried Douglas-fir veneer

Weibull diameter distribution models for managed stands of Douglas-fir in Washington and Oregon

Water relations and the root regeneration response of Douglas-fir

Vegetative factors influencing the germination and survival of Douglas-fir seeds and seedlings in the Tillamook Burn

Vegetation-environmental relationships on two clearcuts on the western slopes of the Oregon Cascades

Use of alternative costs in determining the economic rotation age of Douglas-fir

Ultrastructural study of the embryo during germination involving douglas fir (Pseudotsuga menseizii Franco) seeds

Two studies of Acer macrophyllum : I. The effects of bigleaf maple on soils in Douglas-fir forests : II. The ecology of bigleaf maple seedling establishment and early growth in Douglas-fir forests

Top-Down Effects of Wildlife and Bottom-Up Drivers of Soils and Productivity in Intensively Managed Forest Plantations in the Northern Oregon Coast Range

Time-dependent deflection of Douglas fir beams in bending and shear modes

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