Index Catalog // ScholarsArchive@OSU

Carbon storage in a Pacific Northwest conifer forest ecosystem : a chronosequence approach

Creator:: Janisch, Jack E.
Abstract:: As concern over global warming intensifies, sequestration and storage of atmospheric CO2 has become an important scientific and policy issue. Confusion persists, however, over interpretation of forest carbon (C) source-sink dynamics, in part because conclusions drawn depend on temporal and spatial scales of analysis (e.g. day-week scale vs. successional-scale), type...
Resource Type:: Masters Thesis
Full Text:: submitted to Oregon State University in partial fulfillment of the requirements for the degree of

Ground dwelling beetles in early and late successional forests in the western Cascades of Oregon

Creator:: Heyborne, William H.
Abstract:: The effects of forest cutting on forested systems and the biotic components of those systems has been at the forefront of scientific research. The inventory and monitoring of biodiversity is one technique used for measuring the effects of forest management. Because bioinventory studies are expensive, indicator species are often sought...
Resource Type:: Masters Thesis
Full Text:: Early and Late Successional Forests in the Western Cascades of Oregon. Abstract approved: Jeffrey C

Debris flows and flood disturbance in small, mountain watersheds

Creator:: Snyder, Kai U.
Abstract:: This study examined debris flows occurring in a 125 km² study area in the Blue River watershed in the western Cascade Mountains of Oregon over a 50-year period. Debris flow occurrence was found to be concentrated in a distinct zone of high activity occupying approximately half of the study area,...
Resource Type:: Masters Thesis
Full Text:: of the USDA Forest Service PNW Research Station (Forestry Sciences Laboratory, Corvallis, Oregon

The influence of contemporary forest management on stream nutrient concentrations in an industrialized forest in the Oregon Cascades

Creator:: Meininger, William Scott
Abstract:: The increased demand for wood and fiber from a continually shrinking land base has resulted in the use of intensively managed forest plantations. The concentration of timber production on the most suitable sites allows the world's demand for forest products to be met on less land and enable native forests...
Resource Type:: Masters Thesis
Full Text:: classification put forth by the Oregon Department of Forestry. Distance to main stem indicates the distance

Response of arthropods to different intensities of thinning in Oregon

Creator:: Yi, Hoonbok
Abstract:: The process of silvicultural thinning has become very controversial recently with regards to fire protection and management for old-growth conditions and biodiversity. Therefore, an unthinned control stand and 3 different thinning intensities were examined for their effects on the abundance, species richness, and diversity of arthropods in thinning treatments of...
Resource Type:: Dissertation

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

Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

Creator:: Meehan, Nathan Andrew
Abstract:: Growing societal demand for forest products is pressuring managers to increase productivity from a finite land area, and it is expected that increased supply will come mostly from expansion of intensively managed stands. The USDA Forest Service and numerous collaborators created the Long-Term Soil Productivity (LTSP) network of research sites...
Resource Type:: Masters Thesis
Full Text:: A THESIS submitted to Oregon State University in partial fulfillment of the

A model of forest nitrogen cycling to assess the effects of management intensity on long-term productivity in Douglas-fir forests of the Pacific Northwest

Creator:: Krzak, Joan
Abstract:: The objective of this study was to assess the effects of forest management intensity on long-term productivity of Pacific Northwest Douglas-fir forests. The components of management intensity included rotation length, timber utilization standard (whole tree or bole only), method of slash treatment (remove/burn or leave) and fertilization practice (urea nitrogen...
Resource Type:: Dissertation

Interacting effects of stand density, site factors, and nutrients on productivity and productive efficiency of Douglas-fir plantations in the Oregon Cascades

Creator:: Velazquez-Martinez, Alejandro
Abstract:: The objectives of this research were to study: a) the effect of thinning and treatments consisting of pruning and multinutrient fertilization on aboveground biolnass increment, growth efficiency (GE), and foliar nutrients; b) the influence of topoedaphic variables (soil nutrients, slope, aspect, and rock content) and foliar nutrients on both leaf...
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

ScholarsArchive@OSU

Carbon storage in a Pacific Northwest conifer forest ecosystem : a chronosequence approach

Ground dwelling beetles in early and late successional forests in the western Cascades of Oregon

Debris flows and flood disturbance in small, mountain watersheds

The influence of contemporary forest management on stream nutrient concentrations in an industrialized forest in the Oregon Cascades

Response of arthropods to different intensities of thinning in Oregon

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

Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

A model of forest nitrogen cycling to assess the effects of management intensity on long-term productivity in Douglas-fir forests of the Pacific Northwest

Interacting effects of stand density, site factors, and nutrients on productivity and productive efficiency of Douglas-fir plantations in the Oregon Cascades

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

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