Index Catalog // ScholarsArchive@OSU

The role of certain non-leguminous woody species in the nitrogen nutrition of some conifer seedlings

Creator:: Wollum, Arthur George
Resource Type:: Masters Thesis
Full Text:: course of this investigation . To Drs . W. W. Chilcote and C. M. Gilmour a word of appreciation for

Influence of range improvement practices on composition, production, and utilization of Artemisia deer winter range in central Oregon

Creator:: Urness, Philip J.
Abstract:: Recent emphasis on range improvement of sagebrush-bunch-grass types in Oregon has underscored the need for better understanding of their importance to deer winter range management. The objectives of this study were to evaluate the impact of various sagebrush control practices on the composition, production, and utilization of deer forage plants...
Resource Type:: Dissertation
Full Text:: . C. E. Warren, W. W. Chilcote, and C. E. Poulton, for critically review- ing the manuscript; to

Forage production and utilization in relation to deer browsing of Douglas-fir seedlings in the Tillamook Burn, Oregon

Creator:: Crouch, Glenn Leroy, 1929-
Abstract:: The main objective of this investigation was to evaluate relationships between the production and utilization of forage and deer browsing of hand-planted Douglas-fir seedlings. A secondary purpose was to study some effects of selected physical and biological site factors on the survival and growth of fir seedlings. Field work was...
Resource Type:: Dissertation

Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon

Creator:: Volland, Leonard A.
Abstract:: The study was conducted over approximately 191,000 acres in central Klamath County, Oregon. The research had three objectives: first, to describe and classify the seral and near-climax vegetation by using polyclimax principles; secondly, to determine the southern extension of five plant associations and one plant associes as previously described by...
Resource Type:: Masters Thesis
Full Text:: writer is grateful to the members of his graduate committee (Drs. C. E. Poulton, C. T, Youngberg, W

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Creator:: Culver, Roger Norman
Abstract:: As the management of range lands is intensified or as improvement activity is increased, a critical need is seen to refine the understanding of the ecology of these lands. If soil surveys on range lands are to be meaningful and useful, the relationship between the fundamental ecological units and the...
Resource Type:: Masters Thesis
Full Text:: - - Dr. C. T. Youngberg, Dr. D. W. Hedrick, and Dr. W. W. Chilcote. The writer is grateful for support

Characterization of selected plant communities within the Tillamook Burn in northwestern Oregon

Creator:: Bailey, Arthur W.
Abstract:: A study was initiated in 1961 to characterize seral plant communities in a part of the Cedar Creek drainage in the Tillamook Burn. Stratification of vegetation into ecological units was a necessary first step in conifer-animal damage studies supported by the Oregon State Game Commission. Reconnaissance information was recorded in...
Resource Type:: Masters Thesis
Full Text:: members of my com mittee: Dr. D. W. Hedrick, Mr. L. W. Kuhn, and Dr. C. T. Youngberg. The writer is

Groundsurfaces and soils in the Willamette Valley, Oregon

Creator:: Beattie, John Alfred
Resource Type:: Dissertation
Full Text:: members of my graduate committee I wish to thank Dr. W. H. Slabaugh, Dr. J. C. Cummings, and Dr. W. H

The physiology of seasonal growth in tall fescue varieties (Festuca arundinacea Schreb.)

Creator:: Blacklow, Warren Marcus
Abstract:: The winter and summer growth of varieties of tall fescue (Festuca arundinacea Schreb.) that had originated from the Mediterranean region (Oregon 1000 and Tunisia) and northern Europe (Alta) were studied outdoors in the Mediterranean climate of western Oregon, and in greenhouses and controlled environment chambers. Treatments of temperature, photoperiod and...
Resource Type:: Dissertation
Full Text:: . Chilcote, Dr. W. W. Chilcote and Dr. T. C. Moore who were always approachable, helpful and encouraging

Nitrogen 15 studies with nonleguminous nitrogen-fixing plants

Creator:: Webster, Stephen Russell
Abstract:: Snowbrush (Ceanothus velutinus), red alder (Alnus rubra), and bitterbrush (Purshia tridentata) are three important nitrogen- fixing nonleguminous species. They commonly grow in association with commercially important conifers in western United States and conceivably could be utilized to add nitrogen to forest ecosystems. Nitrogen 15 gas was used to study nitrogen...
Resource Type:: Masters Thesis
Full Text:: , II throughout the study; the willingness of Drs. C. M. Gilmour and W. K. Ferrell to advise and

Forest associations and secondary plant succession in the southern Oregon coastal range

Creator:: Bailey, Arthur Wesley, 1938-
Abstract:: Forest associations, secondary succession, and relationships of plant communities to Roosevelt elk were investigated. Stratification of vegetation into ecological units and an understanding of secondary succession by habitat-type were a necessary first step in investigations into browsing of conifers by elk. The study was jointly conducted by the Oregon State...
Resource Type:: Dissertation
Full Text:: , C. T. Youngberg, W. W. Chilcote, and H. J. Rayner. A special word of thanks is due Dr. C. T

ScholarsArchive@OSU

The role of certain non-leguminous woody species in the nitrogen nutrition of some conifer seedlings

Influence of range improvement practices on composition, production, and utilization of Artemisia deer winter range in central Oregon

Forage production and utilization in relation to deer browsing of Douglas-fir seedlings in the Tillamook Burn, Oregon

Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Characterization of selected plant communities within the Tillamook Burn in northwestern Oregon

Groundsurfaces and soils in the Willamette Valley, Oregon

The physiology of seasonal growth in tall fescue varieties (Festuca arundinacea Schreb.)

Nitrogen 15 studies with nonleguminous nitrogen-fixing plants

Forest associations and secondary plant succession in the southern Oregon coastal range

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