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Base and precious metal deposits in the western Cascades of Oregon and southern Washington : mineralogy, fluid inclusion, and sulfur isotopes

Creator:: Summers, Cathy A.
Resource Type:: Masters Thesis
Full Text:: the physiographic provinces of western Oregon and southern Washington. (C - Cascade Range, W - Western

Factors determining species composition of post-disturbance vegetation following logging and burning of an old growth Douglas-fir forest

Creator:: Clark, Deborah Louise, 1950-
Resource Type:: Masters Thesis
Full Text:: successional species dominated the second year (98%). Seedling emergence from field soil samples placed in a

Soil engineering properties and vegetative characteristics for headwall slope stability analysis in the Oregon coast range

Creator:: Bransom, Mark
Abstract:: Six headwalls in the central Oregon coast range were selected for study of soil engineering properties and vegetativecharacteristics important for analysis of slope stability. The headwalls were considered representative of those which would be candidates for timber leave areas due to geomorphic and topographic features, including steepness of slope and...
Resource Type:: Masters Thesis
Full Text:: the central Oregon coast range were selected for study of soil engineering properties and vege

Plant reproductive ecology and community structure along a subalpine snowmelt gradient

Creator:: Ingersoll, Cheryl A.
Abstract:: The seasonal duration of snow cover is a primary factor influencing the patterns of vegetation in high subalpine and alpine environments, but little is known concerning the responses of plant reproduction and seedling recruitment to gradients of snow-release. Vegetation patterns of a high subalpine site in the Oregon High Cascades...
Resource Type:: Dissertation

Petrogenesis of compositionally distinct silicic volcanoes in the Three Sisters region of the Oregon Cascade Range : the effects of crustal extension on the development of continental arc silicic magmatism

Creator:: Hill, Brittain Eames
Abstract:: The Three Sisters region of the Oregon High Cascades has developed three compositionally and petrogenetically distinct silicic (i.e., SiO₂ ≥ 58%) magma systems within the last 600 k.y. These silicic systems evolved from the same High Cascade mafic magma system and developed in the same 20x30 km area of the...
Resource Type:: Dissertation

Mycorrhizal fungi and their relationship to plant succession in subalpine habitats

Creator:: Cazares, Efren
Resource Type:: Dissertation
Full Text:: were conducted primarily in the Lyman glacier area in the subalpine zone of the North Cascade

Spotted owls, great horned owls, and forest fragmentation in the central Oregon Cascades

Creator:: Johnson, David Harold, 1956-
Resource Type:: Masters Thesis
Full Text:: . Location of study area on the western slope of the 6 Cascade Range in Linn and Lane Counties, Oregon. 2

Occurrence of ectomycorrhizae on ericaceous and coniferous seedlings grown in soils from the Oregon Coast Range

Creator:: Smith, Jane E. (Jane Elizabeth)
Abstract:: Seedlings of Gaultheria shallon, Pseudotsuga menziesii, Rhododendron macrophyllum and Tsuga heterophylla were grown together in the greenhouse in soils from three young managed Douglas-fir forests in the Oregon Coast Range. The main objectives were 1 )to evaluate the ability of ericaceous plants and overstory conifers to share compatible mycorrhizal fungi...
Resource Type:: Masters Thesis

Bird communities in managed conifer stands in the Oregon Cascades : habitat associations and nest predation

Creator:: Vega, Robyn M. S.
Abstract:: Green-tree retention is being implemented on state and federal lands in Oregon. Silvicultural prescriptions with tree and snag retention are thought to mimic natural disturbance patterns in the Pacific Northwest more closely than traditional silvicultural practices, which reduce structural complexity. The effects of green-tree retention on native bird species in...
Resource Type:: Masters Thesis

Relationships of green-tree retention following timber harvest to forest growth and species composition in the western Cascade Mountains

Creator:: Rose, Coulter R.
Abstract:: National Forest management in the Pacific Northwest is shifting from a focus on commodity production to ecosystem management, in which the health of the entire forest ecosystem is considered, rather than that of a few key species. Ecosystem management includes retention of some live trees following timber harvest (green-tree retention)...
Resource Type:: Masters Thesis
Full Text:: harvest to forest growth and species composition in the western Cascade Mountains AN ABSTRACT OF THE

ScholarsArchive@OSU

Base and precious metal deposits in the western Cascades of Oregon and southern Washington : mineralogy, fluid inclusion, and sulfur isotopes

Factors determining species composition of post-disturbance vegetation following logging and burning of an old growth Douglas-fir forest

Soil engineering properties and vegetative characteristics for headwall slope stability analysis in the Oregon coast range

Plant reproductive ecology and community structure along a subalpine snowmelt gradient

Petrogenesis of compositionally distinct silicic volcanoes in the Three Sisters region of the Oregon Cascade Range : the effects of crustal extension on the development of continental arc silicic magmatism

Mycorrhizal fungi and their relationship to plant succession in subalpine habitats

Spotted owls, great horned owls, and forest fragmentation in the central Oregon Cascades

Occurrence of ectomycorrhizae on ericaceous and coniferous seedlings grown in soils from the Oregon Coast Range

Bird communities in managed conifer stands in the Oregon Cascades : habitat associations and nest predation

Relationships of green-tree retention following timber harvest to forest growth and species composition in the western Cascade Mountains

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