Index Catalog // ScholarsArchive@OSU

The phytotoxic effects of herbicide and adjuvant application by physiological timing on the woody shrub salal (Gaultheria shallon)

Creator:: Downs, Theodore
Abstract:: Salal is plant species that is native to forestland throughout the PNW and northern California that has been identified as a competitor to early crop tree development. This study consisted of a field and a radioisotope laboratory study to test four commonly used herbicides on salal (imazapyr, triclopyr, glyphosate, and...
Resource Type:: Masters Thesis
Full Text:: : John Tappeiner Salal is plant species that is native to forestland throughout the PNW and northern

Comparing structure and development of Douglas-fir old-growth, plantations, and young natural forests in western Oregon

Creator:: Dowling, Christopher D.
Abstract:: Ages, diameter growth, density, tree size, and species were studied in old-growth, plantation, and young natural Douglas-fir stands in three areas in western Oregon: the western and eastern Coast Range and the western Cascades. The purpose was to compare the development of these three stand types and to determine whether...
Resource Type:: Masters Thesis

Morphological characteristics of ponderosa pine and lodgepole pine regeneration nine years after stand density reduction at three sites in central Oregon

Creator:: Michel, Alexa K.
Abstract:: Without the natural occurrence of fire in ponderosa pine forests of the western US, lodgepole pine has started to dominate regeneration in many forest stands and may be gradually replacing ponderosa pine over time. This development, however, conflicts with recent efforts in this region to restore old-aged, open ponderosa pine...
Resource Type:: Masters Thesis
Full Text:: . Signature redacted for privacy. ?JQ C> ···~ ✓ John C. Tappeiner II Without the natural occurrence of

Wood quality studies in second-growth western redcedar (Thuja plicata Donn.)

Creator:: DeBell, Jeffrey D.
Abstract:: Western redcedar (Thuja plicata Donn.) is a valuable commercial species found in the northwestern United States and southwestern Canada. This dissertation includes four papers focused on wood and stem characteristics of second-growth western redcedar, and how those characteristics vary within the stem or how they are influenced by cultural practices....
Resource Type:: Dissertation

Conifer regeneration, understory vegetation and artificially topped conifer responses to alternative silvicultural treatments

Creator:: Huff, Tristan
Abstract:: Historically, between 40-60% of the Coast Range of Oregon was comprised of structurally diverse, old forests initiated by disturbances of various spatial scales ranging from thousands of acres (large fires) to the size of a single tree (windthrow). The predominant regeneration method of the past several decades, however, has been...
Resource Type:: Masters Thesis
Full Text:: . John Tappeiner and Dr. Brenda McComb (committee members) were immensely helpful throughout my

Elevation, thermal environment, and stream temperatures on headwater streams in northeastern Oregon

Creator:: Meays, Cynthia L.
Abstract:: A case study examining the relationship between stream temperatures and the thermal environment through which streams flow was conducted on the headwaters of 4 tributaries of the Burnt River (Barney, Elk, Greenhorn, and Stevens Creeks) in northeastern Oregon during July through August 1998 and 1999. Barney Creek and Stevens Creek...
Resource Type:: Masters Thesis
Full Text:: from the world of climatology and atmospheric science. To Dr. John Tappeiner, thank you for serving as

An Illustrated Guide to Fire in Central Oregon Forests

Creator:: Eckert, Bradley E., Walstad, John D., and Tappeiner, J. C. (John C.)
Abstract:: This pictorial guide is primarily intended to serve as a backdrop for field tours of central Oregon that involve topics surrounding wildland fire. It also is designed to provide an overview of the role of fire in the major ecosystems characteristic of this region. Topics covered include fire history, fire...
Resource Type:: Technical Report
Full Text:: Shoshone National Forest in Cody, WY. John D. Walstad and John C. Tappeiner II are both Professor

Habitat selection by American martens (Martes americana) in coastal northwestern California

Creator:: Slauson, Keith M.
Abstract:: The Humboldt marten, Martes americana humboldtensis, has undergone a dramatic decline throughout its historical distribution in coastal Northwestern California. There is currently only one known population occupying an area occurring in <5% of the historical distribution of the subspecies. Conservation and management efforts to benefit this population are hampered by...
Resource Type:: Masters Thesis
Full Text:: my committee members John Tappeiner and Richard Schmitz for their insight and suggestions during

Effects of release from suppression on hydraulic architecture, photosynthetic capacity and functional wood characteristics in Douglas-fir and western hemlock

Creator:: Renninger, Heidi
Abstract:: Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), a shade intolerant species, and western hemlock (Tsuga heterophylla (Raf.) Sarg.), a shade tolerant species, were compared to learn more about the temporal pattern of release from suppression in both species, whether hydraulic architecture or photosynthetic capacity constrain release and how wood functional properties change...
Resource Type:: Masters Thesis
Full Text:: approved: Barbara L. Gartner Frederick C. Meinzer Douglas-fir (Pseudotsuga

Citizen perspectives on hazardous fuel reduction in the Blue Mountains : findings and implications from panel research

Creator:: Toman, Eric Lee
Abstract:: Forests in the Blue Mountains region of eastern Oregon and Washington are facing a large-scale forest health crisis. Poor forest conditions have greatly increased the risk of catastrophic wildfire. Resource managers in the Wallowa-Whitman, Umatilla, and Malheur National Forests are utilizing prescribed fire and mechanized thinning treatments to reduce hazardous...
Resource Type:: Masters Thesis
Full Text:: other committee members-Denise Lach, John Tappeiner, and Jay Pscheidt-offered invaluable advice and

ScholarsArchive@OSU

The phytotoxic effects of herbicide and adjuvant application by physiological timing on the woody shrub salal (Gaultheria shallon)

Comparing structure and development of Douglas-fir old-growth, plantations, and young natural forests in western Oregon

Morphological characteristics of ponderosa pine and lodgepole pine regeneration nine years after stand density reduction at three sites in central Oregon

Wood quality studies in second-growth western redcedar (Thuja plicata Donn.)

Conifer regeneration, understory vegetation and artificially topped conifer responses to alternative silvicultural treatments

Elevation, thermal environment, and stream temperatures on headwater streams in northeastern Oregon

An Illustrated Guide to Fire in Central Oregon Forests

Habitat selection by American martens (Martes americana) in coastal northwestern California

Effects of release from suppression on hydraulic architecture, photosynthetic capacity and functional wood characteristics in Douglas-fir and western hemlock

Citizen perspectives on hazardous fuel reduction in the Blue Mountains : findings and implications from panel research

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