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The influence of seedbed microenvironments upon the establishment of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Hermann, Richard K.
Resource Type:: Dissertation
Full Text:: RICHARD HERMANN A THESIS submitted to OREGON STATE COLLEGE in partial fulfillment of the

Comparative development of a thinned and a natural Douglas-fir stand from 45 to 60 years of age

Creator:: Groman, William A.
Abstract:: An understanding of the dynamics of individual tree and stand growth, development, and structural patterns during the immature formative years of a commercial species is essential to determine correct thinning practices necessary to attain desired objectives. This study compared a natural, medium-site Douglas-fir stand and an adjacent similar stand released...
Resource Type:: Dissertation

Habitat relationships of birds and young-growth Douglas-fir in northwestern California

Creator:: Marcot, Bruce G.
Abstract:: Ninety-one species of birds were surveyed in grass/forb, early and late shrub/sapling, pole, and medium sawtimber stages of young-growth Douglas-fir in northwestern California; patterns of bird distribution and abundance were related to habitat conditions and even-age silvicultural treatments. Seven species (band-tailed pigeon, western wood pewee, dusky flycatcher, western bluebird, fox...
Resource Type:: Dissertation
Full Text:: use by birds in Douglas-fir clearcuts. Pp. 134-139 in J. W. Davis, G. A. Goodwin, and R. A

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:: Richard Thomas for the Ph, D. (Name) (Degree) in Soils presented on (Major) Auth.),2) /9 i?6 (Date

Geographic and seasonal variation in photosynthetic efficiency and capacity of Rocky Mountain Douglas-fir, Pseudotsuga menziesii var. glauca

Creator:: Pope, Walter William
Abstract:: Net photosynthesis was measured for photosynthetic light efficiency and capacity on two-year-old plants from eight different seed sources in three measurement periods. The measurement periods corresponded to the physiological periods 1) prior to bud swelling, 2) after needle elongation, and 3) predormancy. Measurement period differences in both photosynthetic efficiency and...
Resource Type:: Dissertation
Full Text:: review of this manuscript. During preparation Dr. Helge Irgens-Moller, Dr. Kenneth Rowe and Dr. W

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

Creator:: Johnson, Donna A.
Abstract:: The purpose of this study was to determine if amount and kind of thinning had an effect on wood specific gravity, modulus of rupture, modulus of elasticity, growth rate, or pulp yield and kappa number. The study involved 24 1/5-acre plots, three plots in each of eight thinning treatments. The...
Resource Type:: Masters Thesis
Full Text:: thiosulfate) N = normality of thiosulfate W = oven dry weight of pulp (g) Specific Gravity Calculations

The chemical composition of the extractives from the newly formed inner bark of Douglas Fir, Pseudotsuga menziesii (Mirb.) Franco

Creator:: Holmes, George William
Resource Type:: Dissertation

The effects of mycorrhizal colonization and phosphorus fertilization on Douglas-fir seedling growth, morphology, and photosynthesis

Creator:: Black, C. H. (Charles H.)
Resource Type:: Dissertation
Full Text:: (D fir) and western hemlock (W hem) seedlings after one field season. 115 IV-2 Mean heights (a

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

Creator:: Lavender, Denis Peter, 1926-
Resource Type:: Dissertation
Full Text:: initiate growth 75 48 14.75 7 mid May gro,w•th 80 51 15. 50 Z8 mid June growth 8Z 5Z 14.75 7 mid July

Indentation hardness of Douglas fir and Western hemlock lumber related to density

Creator:: Corder, Stanley E.
Abstract:: Indentation hardness tests were made on sections of 211 pieces of Douglas fir and 208 pieces of Western hemlock at a moisture content of about 11 percent. Specific gravity and visual-density evaluations were also determined. Correlation coefficients for linear regression of density, as measured by specific gravity, on average standard...
Resource Type:: Masters Thesis
Full Text:: . Dept. of Agriculture. Agriculture handbook no. 72) 17. Weatherwax, Richard C.., E. C. 0. Erickson and

ScholarsArchive@OSU

The influence of seedbed microenvironments upon the establishment of Douglas fir (Pseudotsuga menziesii (Mirb.) Franco)

Comparative development of a thinned and a natural Douglas-fir stand from 45 to 60 years of age

Habitat relationships of birds and young-growth Douglas-fir in northwestern California

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

Geographic and seasonal variation in photosynthetic efficiency and capacity of Rocky Mountain Douglas-fir, Pseudotsuga menziesii var. glauca

The effect of forest stand thinning on selected strength and pulp-ing characteristics of Douglas-fir

The chemical composition of the extractives from the newly formed inner bark of Douglas Fir, Pseudotsuga menziesii (Mirb.) Franco

The effects of mycorrhizal colonization and phosphorus fertilization on Douglas-fir seedling growth, morphology, and photosynthesis

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

Indentation hardness of Douglas fir and Western hemlock lumber related to density

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