Index Catalog // ScholarsArchive@OSU

Areal distribution, change, and restoration potential of wetlands within the lower Columbia River riparian zone, 1948-1991

Creator:: Allen, Tracy Hunter
Abstract:: The lower Columbia River (LCR) riparian zone is rich in habitat diversity. However, the natural beauty and species diversity along the river have increasingly become affected by human activity. This study quantifies the areal extent and degree of wetlands change and associated causes along the LCR over the past 44...
Resource Type:: Dissertation

Vegetation ecology and net primary productivity of selected freshwater wetlands in Oregon

Creator:: Boss, Theodore R. (Theodore Robert)
Abstract:: Vegetation ecology of eight Oregon freshwater wetlands was described and net aerial primary productivity estimated in four wetlands. Plant cover samples were used to classify 37 wetland and 11 terrestrial communities by agglomerative hierarchical clustering. Samples and species were ordinated. Direct measurements were made of sample relative elevation, inundation duration,...
Resource Type:: Dissertation
Full Text:: tended to be more floristically similar to one another than to those of central Oregon. Forested wetland

Oregon's Mid-Willamette Valley wetlands : agricultural uses, alternative uses, problems and trends

Creator:: Tsutsui, Setsuo Harry
Abstract:: The wetlands are distinguished from other lands of the Mid-Willamette Valley by excessive soil moisture. The wetlands, as defined for this study, consist of 20 soil series (in 22 soil mapping units) which are classified by the Soil Conservation Service as having excessive wetness as the major factor limiting their...
Resource Type:: Dissertation
Full Text:: (in 22 soil mapping units) which are classi- fied by the Soil Conservation Service as having

Factors that influence energy conservation alterations in Oregon households

Creator:: Johnson-Carroll, Karen J. A.
Resource Type:: Dissertation

Origin and age of Fe-Mn-P concretions and nodules in an Oregon wetland

Creator:: Stewart, Scott R.
Abstract:: Wetland soils with complex stratigraphy and redoximorphic features occur on the margin of the Willamette Valley, Oregon. In the Jackson-Frazier wetland, vertisols show three distinct stratigraphic units that rest uncomformably upon each other and correspond to the Bashaw series Bss, 2Bt and 3BC horizons. Holocene alluvium deposited as distal alluvial...
Resource Type:: Dissertation

Influences of tillage system, climate, and soils on the demand for topsoil in northcentral Oregon wheat production

Creator:: Hanrahan, Michael S.
Abstract:: Soil erosion research in the fields of agronomy, soils science and mechanics, agricultural engineering, hydrology, climatology, and other scientific disciplines has economic dimensions. In general, measurable and, at times, significant economic effects are associated with the effects of erosion in the other disciplines. Interactions between climate, soils, hydrology, and tillage...
Resource Type:: Dissertation
Full Text:: Oregon Wheat Production Abstract approved: •- " =—r—"■—"—^— Soil erosion research in the fields of

Who's in place, who's out of place : examining the politics of natural resource collaboration

Creator:: Cheng, Antony S.
Abstract:: A qualitative research approach composed of three strategies was employed to systematically examine the politics of natural resource collaboration. First, using the Oregon Plan for Salmon and Watersheds as a case study, the behavioral assumptions of natural resource policy instruments enabling collaboration were uncovered and analyzed. Three key assumptions emerge:...
Resource Type:: Dissertation
Full Text:: to systematically examine the politics of natural resource collaboration. First, using the Oregon

Seasonal floodplain wetlands as fish habitat in Oregon and Washington

Creator:: Baker, Cynthia F.
Abstract:: To begin to understand freshwater seasonal floodplain fish communities in the context of human alteration of the physical system, species introductions and wetland restoration efforts, I studied fish assemblages in fifteen seasonal floodplain wetlands within four geographic regions (coastal, upper Columbia River estuary, Puget Sound and eastern Oregon/Washington) in the...
Resource Type:: Dissertation
Full Text:: . Vicinity map of the wetland site near Arago, Oregon. ................................. 231 59. Vicinity

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

Creator:: Adamus, Paul R.
Abstract:: Relatively little is known about wintering bird communities in lowlands of the Pacific Northwest, yet, the condition of winter habitats potentially can pose a major constraint on bird populations. I initiated a study to determine: (1) Which avian species use lowland riparian and wetland habitats in the Willamette Valley during...
Resource Type:: Dissertation
Full Text:: Relationships of Wintering Birds with Riparian and Wetland Habitat in the Willamette Valley, Oregon Abstract

Consumer attitudes toward potentially restrictive energy conservation regulations

Creator:: Merfeld, Michele Kay
Abstract:: A sample of 893 Oregon individuals from a Western Regional Agricultural Experiment Station Project (W-159 "Consequences of Energy Conservation Policies for Western Region Households") was used to analyze consumer attitudes toward potentially restrictive energy conservation regulations. Belief in the seriousness of the energy problem, a psychological measure of internal control...
Resource Type:: Dissertation
Full Text:: Conservation Regulations AN ABSTRACT OF THE THESIS OF Michele Kay Merfeld for the degree of Doctor of

ScholarsArchive@OSU

Areal distribution, change, and restoration potential of wetlands within the lower Columbia River riparian zone, 1948-1991

Vegetation ecology and net primary productivity of selected freshwater wetlands in Oregon

Oregon's Mid-Willamette Valley wetlands : agricultural uses, alternative uses, problems and trends

Factors that influence energy conservation alterations in Oregon households

Origin and age of Fe-Mn-P concretions and nodules in an Oregon wetland

Influences of tillage system, climate, and soils on the demand for topsoil in northcentral Oregon wheat production

Who's in place, who's out of place : examining the politics of natural resource collaboration

Seasonal floodplain wetlands as fish habitat in Oregon and Washington

Multiscale relationships of wintering birds with riparian and wetland habitat in the Willamette Valley, Oregon

Consumer attitudes toward potentially restrictive energy conservation regulations

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