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The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

Creator:: Anderson, Matthew E.
Abstract:: It is difficult to treat the heartwood of many wood species with liquid preservatives using conventional liquid processes. Supercritical fluids (SCF) used as carriers of preservatives to impregnate refractory wood species may be an attractive alternative to conventional liquid carriers. While SCF impregnation has many potential advantages, some wood species...
Resource Type:: Masters Thesis
Full Text:: friends, especially my parents Catherine Fitzgerald and William Anderson. If it were not for their

Chemical suppression of a perennial ryegrass (Lolium perenne) living mulch and influence of ground cover management on growth of 'Chardonnay' wine grapes (Vitis vinifera) and Douglas fir Christmas trees (Pseudotsuga menziesii)

Creator:: Brenner, Loretta K.
Resource Type:: Masters Thesis
Full Text:: . William, and Steve Radosevich, for their assistance, support, patience, and faith, in my seemingly

Postharvest water relations and needle abscission in cut trees of Douglas-fir (Pseudotsuga menziesii Mirb. Franco)

Creator:: Montano, Jose M.
Resource Type:: Dissertation
Full Text:: ) s j ADSuraCL approved * *^ iB&g^**^*^-^«gyyy " ••■, s sfim'if *^^— y tfilliam M

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:: since extensive clearcutting in the study area began in the early 1950's. Six species (Hammond's

Characterization of lignocellulose decomposition in stream wood samples using ¹⁴C and ¹⁵N techniques

Creator:: Aumen, Nicholas G.
Resource Type:: Dissertation
Full Text:: appreciation to my mother, Dorothy, and to my late father, William, for the continual emotional and financial

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:: sacrifices in helping me thoughout my Ph.D. program. Dr. S. H. Sharrow served as my major professor and

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

Creator:: Reynolds, Keith M.
Abstract:: Groups of second-growth Douglas-fir (Mirb.) Franco were excavated in plots of two to six trees on two sites in the vicinity of Cowichan Lake, Vancouver Is., British Columbia. Eleven excavation plots provided 36 trees which could be studied in pairs (a total of 50 pairs) in order to ascertain the...
Resource Type:: Masters Thesis
Full Text:: : Dr. William J. Bloomberg who not only was instrumental in formulating and implementing the inter

Comparison of Phellinus weirdi root rot damage in a 60-year-old Douglas-fir (Pseudotsuga menziesii) stand with the damage in the preceding old-growth stand

Creator:: Tkacz, Borys M.
Abstract:: Laminated root rot of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) caused by the fungus Phellinus weirii (Murr.)Gilbertson was studied in two successive stands in the Oregon Coast Range. Damage due to the disease in a 60-year-old second-growth stand was compared with incidence in the preceding 300-year-old stand on the same site....
Resource Type:: Masters Thesis
Full Text:: without lapsing in skepticism; Dr. Earl E. Nelson, Dr. William Ferrell, and Dr. Lewis F. Roth - for

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:: AN ABSTRACT OF THE THESIS OF WALTER WILLIAM POPE (Name

Comparative rates of CO₂ production from the forest floor in the Douglas-fir ecosystem

Creator:: Phillips, Michael John
Abstract:: To obtain data on the decomposition of the forest floor, a battery operated electrolytic respirometer was developed making it possible to measure CO₂ evolution from field moist forest floor samples in situ independent of root respiration. Banks of four respirometers powered by two 12-volt batteries were installed in three old...
Resource Type:: Masters Thesis
Full Text:: Dr. William Ferrell for serving as my minor professor. I thank Dr. Kermit Cromack and Dr. Robert

ScholarsArchive@OSU

The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

Chemical suppression of a perennial ryegrass (Lolium perenne) living mulch and influence of ground cover management on growth of 'Chardonnay' wine grapes (Vitis vinifera) and Douglas fir Christmas trees (Pseudotsuga menziesii)

Postharvest water relations and needle abscission in cut trees of Douglas-fir (Pseudotsuga menziesii Mirb. Franco)

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

Characterization of lignocellulose decomposition in stream wood samples using ¹⁴C and ¹⁵N techniques

Silvicultural impacts of sheep grazing in Oregon's Coast Range

Factors affecting inter-tree root contact and the transmission of Phellinus weirii in young-growth Douglas-fir

Comparison of Phellinus weirdi root rot damage in a 60-year-old Douglas-fir (Pseudotsuga menziesii) stand with the damage in the preceding old-growth stand

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

Comparative rates of CO₂ production from the forest floor in the Douglas-fir ecosystem

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