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Strength and related properties of Douglas fir from mill samples

Creator:: Snodgrass, James D. and Noskowiak, Arthur F.
Resource Type:: Technical Report
Full Text:: were made of material that is still representative. However, changes have taken place over the years

The role of soil-water depletion and plant-moisture stress in soil classification and cambial activity of Douglas-fir

Creator:: Thomas, Byron R.
Abstract:: Relationships between soil-water stress and plant-moisture stress were studied with respect to soil classification and cambial activity in Douglas-fir. The study sites were forested with Douglas-fir and located in McDonald Forest and near Marys Peak in the Oregon Coast Range. Soil-water depletion was followed by the use of gypsum blocks...
Resource Type:: Dissertation
Full Text:: ten years. Therefore, they are not xeric. The term moist-mesic is used to define such soils

Effect of snowbrush on the establishment and growth of Douglas-fir seedlings

Creator:: Scott, William
Abstract:: Six, recent clear cut areas were selected in the Douglas-fir zone of the Western Cascade Range of Oregon to determine the environmental and nutritional effects that snowbrush has on the establishment and growth of Douglas-fir seedlings. One thousand eighty milacre sample plots on the six clear cuts were used to...
Resource Type:: Masters Thesis
Full Text:: , cobbles and boulders. This coarse material is definite evidence of glacial activity in the area. At

The growth of seedlings of some coniferous species in a controlled environment

Creator:: Lavender, Denis Peter, 1926-
Resource Type:: Dissertation
Full Text:: quality in the Pacific Northwest. Again, available soU moisturf\ is cited as an important determinant

Silvicultural impacts of sheep grazing in Oregon's Coast Range

Creator:: Leininger, Wayne C.
Abstract:: A three-year investigation was conducted during 1980-1982 to evaluate the potential of using herded sheep as a silvicultural tool to suppress brush in Douglas-fir (Pseudotsuga menziesii) plantations of Oregon's Coast Range. Sheep browsing of Douglas-fir was highest in May soon after bud break. Averaged over the 2 years of grazing,...
Resource Type:: Dissertation
Full Text:: plantations and was unaffected by grazing. Increased available nitrogen deposited as urine in grazed

Influence of interplanted and pure stands of red alder (Alnus rubra Bong.) on microbial and chemical characteristics of a coastal forest soil in the Douglas-fir region

Creator:: Chen, Chi-sin
Abstract:: Chemical and microbial analyses were made at four seasonal intervals on soil horizons under red alder, conifers, and mixed alder-conifers at the Cascade Head Experimental Forest, established in 1937 by the U. S. Forest Service near Otis, Oregon. Microbial analyses showed that although plate counts of molds and bacteria fluctuated...
Resource Type:: Dissertation
Full Text:: stands. It is possible that at the lower pH, phosphorus becomes increasingly soluble and available

Soil and growth studies in Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stands near Molalla, Oregon

Creator:: Strand, Robert Fenton
Abstract:: In 1957 three Douglas-fir stands (15-, 25-, and 40-year-old age classes) were selected on a tree farm in the Cascade foothills of northwestern Oregon to study factors affecting site productivity. Soil-moisture, soil-temperature and seasonal radial- growth pattern measurements were made with a Colman moisture meter and a dial gauge dendrometer...
Resource Type:: Dissertation

Early stages in plant succession on Douglas fir clearcuts on the Mary's Peak watershed near Corvallis, Oregon

Creator:: Brown, Eugene Allen
Abstract:: This study has been concerned with the patterns of vegetative changes which occur during the first five years following logging and burning on Douglas-fir clear cuts. Knowledge of the successional sequence in the coastal forests of western Oregon is of primary importance to those concerned with the management of this...
Resource Type:: Masters Thesis
Full Text:: BROWN for the M. S. in Botany (Name) (Degree) (Major) Date thesis is presented Title EARLY STAGES

Hydrogenation of Douglas Fir Pseudotsuga taxifolia, Britt., Wax

Creator:: Cho, Arthur Kenji
Resource Type:: Masters Thesis
Full Text:: . 3ince the whole bark has limited applications and is available in such vast quantities, it is only

Constituents of Douglas fir bark extractive (Pseudotsuga taxifolia Britt.)

Creator:: Kiefer, Harry John
Resource Type:: Masters Thesis
Full Text:: bark. ost of this material is used as fuel or is burned as a means of disposal. The need for more

ScholarsArchive@OSU

Strength and related properties of Douglas fir from mill samples

The role of soil-water depletion and plant-moisture stress in soil classification and cambial activity of Douglas-fir

Effect of snowbrush on the establishment and growth of Douglas-fir seedlings

The growth of seedlings of some coniferous species in a controlled environment

Silvicultural impacts of sheep grazing in Oregon's Coast Range

Influence of interplanted and pure stands of red alder (Alnus rubra Bong.) on microbial and chemical characteristics of a coastal forest soil in the Douglas-fir region

Soil and growth studies in Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stands near Molalla, Oregon

Early stages in plant succession on Douglas fir clearcuts on the Mary's Peak watershed near Corvallis, Oregon

Hydrogenation of Douglas Fir Pseudotsuga taxifolia, Britt., Wax

Constituents of Douglas fir bark extractive (Pseudotsuga taxifolia Britt.)

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