Index Catalog // ScholarsArchive@OSU

Natural regeneration of Douglas-fir in uneven-aged stands in southwest Oregon

Creator:: Gerstein, Jared M.
Abstract:: The response to various levels of stand density by natural Douglas-fir regeneration, shrub and sprouting hardwood species was studied in the mixed-evergreen-forests of southwest Oregon. Partial-cut old growth (harvested 22-31 years prior) and thinned evenaged (harvested 9-17 years prior) stand types were used as surrogates for intentionally managed uneven-aged stand...
Resource Type:: Masters Thesis

Green-tree retention and ectomycorrhiza legacies : the spatial influences of retention trees on mycorrhiza community structure and diversity

Creator:: Stockdale, Christopher A.
Abstract:: These studies are part of the Demonstration of Ecosystem Management Options (DEMO) study, a program researching the effects of different levels and patterns of green-tree retention on ecological, economic, and social phenomena. We restricted our studies to the 15% basal area, evenly dispersed retention treatment. Our objectives were, first, to...
Resource Type:: Masters Thesis
Full Text:: . Stockdale for the degree of Master of Science in Forest Science, presented on November 29, 2000. Title

The clonal development of vine maple during Douglas-fir stand development in the Coast Range of Oregon

Creator:: O'Dea, Mary E.
Abstract:: Natural Douglas-fir stand development is the result of many types of disturbance, both natural and management induced. The magnitude and timing of these disturbances have profound effects on the structure and composition of both the overstory and understory plant communities. Vine maple responds to disturbance by basal sprouting, layering, producing...
Resource Type:: Masters Thesis

The structure and development pattern of mixed-species forest stands in the interior cedar-hemlock zone : moist cold subzone of northwestern British Columbia

Creator:: LePage, P. (Philip)
Abstract:: A field study was established to explore stand structure and development patterns of mature, mixed-species forests in the Interior Cedar-Hemlock (ICH) zone: moist cold subzone of northwestern British Columbia. The species of interest in the study area were: western hemlock (Tsuga heterophylla (Raf.) Sarg.), western redcedar (Thuja plicata Donn), lodgepole...
Resource Type:: Masters Thesis

Sitka spruce and western hemlock regeneration after selective harvesting, Tongass National Forest, southeast Alaska

Creator:: Yount, Louise Simmons
Abstract:: The objectives of this study were to determine the species composition and density of natural conifer regeneration following selective logging in southeast Alaska. Therefore, we quantified the density and size of new cohort spruce and hemlock and current seedling bank in 17 selectively logged stands. All stands were in mixed...
Resource Type:: Masters Thesis

Limits on aboveground net primary production, leaf area, and biomass in vegetational zones of the Pacific Northwest

Creator:: Gholz, Henry L.
Abstract:: Samples of mature vegetation from 8 of 12 major vegetational zones in Oregon and Washington, representing about 80% of the area of the two states, were studied along a latitudinal transect from the Pacific Coast to the east slopes of the Cascade Mountains. Six stands were in forest zones, one...
Resource Type:: Dissertation

Fire history in three vegetation types on the eastern side of the Oregon Cascades

Creator:: Bork, Joyce L.
Abstract:: Historic fire return intervals in three different vegetation types dominated by ponderosa pine (Pinus ponderosa Laws.) were determined using fire scarred trees. Dendrochronological techniques were used to achieve accuracy in dating fire scars on samples collected from six 40 acre plots established in each site. Mean fire return intervals (MFRI)...
Resource Type:: Dissertation

Mycorrhiza formation and diversity in undisturbed forest and clearcut and burned areas in three forest types in Oregon

Creator:: Brainerd, Richard E.
Abstract:: A greenhouse bioassay was used to compare ectomycorrhiza formation and diversity in soils from undisturbed and clearcut and burned areas in moist mesic, moist montane and dry montane forest types representing a gradient of environmental harshness. It was hypothesized that mycorrhiza diversity decreases with increasing environmental harshness and that stability...
Resource Type:: Masters Thesis

Vegetation response following thinning in young Douglas-fir forests of western Oregon : can thinning accelerate development of late-successional structure and composition?

Creator:: Beggs, Liane R.
Abstract:: Across western Oregon, Washington, and British Columbia, forest management practices over the past century reduced the amount of late-successional forest while simultaneously increasing the amount of young (less than 80 years old), managed Douglas-fir (Pseudotsuga menziesii) dominated forests. Recently, concerns over loss of late-successional habitat pushed management objectives on public...
Resource Type:: Masters Thesis
Full Text:: western Oregon, Washington, and British Columbia, forest management practices over the past century

Small mammal relationships with downed wood and antelope bitterbrush in ponderosa pine forests of central Oregon

Creator:: Smith, Troy G.
Abstract:: Downed wood and antelope bitterbrush (Purshia tridentata) are often managed on federal ponderosa pine (Pinus ponderosa) forests in central Oregon to prevent catastrophic wildfires and provide wildlife habitat. However, although much is known regarding the roles of downed wood and bitterbrush in wildfire behavior, little is known regarding the relationships...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Natural regeneration of Douglas-fir in uneven-aged stands in southwest Oregon

Green-tree retention and ectomycorrhiza legacies : the spatial influences of retention trees on mycorrhiza community structure and diversity

The clonal development of vine maple during Douglas-fir stand development in the Coast Range of Oregon

The structure and development pattern of mixed-species forest stands in the interior cedar-hemlock zone : moist cold subzone of northwestern British Columbia

Sitka spruce and western hemlock regeneration after selective harvesting, Tongass National Forest, southeast Alaska

Limits on aboveground net primary production, leaf area, and biomass in vegetational zones of the Pacific Northwest

Fire history in three vegetation types on the eastern side of the Oregon Cascades

Mycorrhiza formation and diversity in undisturbed forest and clearcut and burned areas in three forest types in Oregon

Vegetation response following thinning in young Douglas-fir forests of western Oregon : can thinning accelerate development of late-successional structure and composition?

Small mammal relationships with downed wood and antelope bitterbrush in ponderosa pine forests of central Oregon

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