Index Catalog // ScholarsArchive@OSU

The quantity and composition of ground vegetation in different light environments under a Douglas-fir, Pseudotsuga menziesii (Mirb) Franco, stand in the Oregon Coast Range

Creator:: Temmes, Eeva Karin Marianna
Abstract:: The relationship between ground vegetation and light intensity under a 60 to 65-year-old Douglas-fir forest was investigated. Biomass and height of ground vegetation were measured and cover was estimated on small sample units (30 centimeters in diameter) on permanent research plots, one-acre in size, on the George T. Gerlinger Experimental...
Resource Type:: Masters Thesis

Nitrogen status in Oregon Coast Range forest communities

Creator:: Alexander, Joseph Richard
Abstract:: Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) roots in four plant communities--ocean spray (Holodiscus discolor (Pursh). Maxim.)/salal (Gaultheria shallon Pursh), vine maple (Acer circinatum Pursh)/salal, sword-fern (Polystichum munitum (Kaulf.) Presi. var. munitum) and sword-f ern/oxalis (Oxalis oregana Nutt.)--were sampled for soluble nitrogen concentrations. Sampling prior to bud burst in the salal communities...
Resource Type:: Masters Thesis

Relationships between plant associations and environment within McDonald-Dunn Forest

Creator:: Leavell, Daniel M.
Abstract:: I studied the relationship of environmental variables to six plant associations on McDonald and Paul M. Dunn Forests. Indirect gradient analysis was used to determine relationships. The plant associations were developed in a companion study by C.J. Hubbard (1991). McDonald-Dunn Forests are located north and northwest of Corvallis, Oregon. The...
Resource Type:: Masters Thesis

Plant and amphibian assemblages in zero-order basins in the Oregon Coast Range

Creator:: Sheridan, Chris D.
Abstract:: We have a poor understanding of the biotic communities in zero-order basins, drainages extending from ridgelines to the initiation of first-order streams. This study describes baseline plant and amphibian composition in unmanaged zero-order basins in the Oregon Coast Range. Specifically, I studied: i) the spatial distribution and diversity of species,...
Resource Type:: Masters Thesis
Full Text:: degree of Master of Science in Forest Science presented on June 3, 2002. Title: Plant and Amphibian

The structure and dynamics of red alder communities in the central coast range of western Oregon

Creator:: Carlton, Gary C.
Abstract:: Red alder (Alnus rubra Bong.) is a fast-growing pioneer species that colonizes disturbed forest sites west of the Cascade Mountains in the Pacific Northwest. Streambottoms, toe slopes, and mass movement of surface soils have historically provided the scarification and soil moisture necessary for successful regeneration of red alder. During the...
Resource Type:: Masters Thesis

Stable, low-growing plant communities in the western Cascade Mountains : species processes and their implications for rights-of-way management

Creator:: Nesmith, Jonathan C. B.
Abstract:: The processes that lead to stable, low-growing plant communities and the characteristics of the species that form them are of great interest to rights-of-way (ROW) managers and others wishing to better understand plant community resistance to tree invasion on managed landscapes. The use of stable, low-growing plant communities as a...
Resource Type:: Masters Thesis

A plant association classification for McDonald-Dunn Forest

Creator:: Hubbard, Connie J.
Abstract:: The purpose of this study was to develop a plant association classification for the mature coniferous forests of the McDonald and Paul M. Dunn Research Forests. A secondary objective was to quantify diversity within the plant associations. This Forest is approximately 11,000 acres and is located 6 miles to the...
Resource Type:: Masters Thesis

Plant community recovery after high severity wildfire and post-fire management in the Klamath Region

Creator:: Lopez Ortiz, Maria Jose
Abstract:: Disturbance and microclimate interact to play a central role influencing the composition and structure of plant communities. In this thesis, I examined plant community composition and structure twenty years after high severity wildfires with and without post-fire management (salvage logging, fuel treatment, tree planting, and shrub release) under contrasting microclimatic...
Resource Type:: Masters Thesis
Full Text:: on November 19, 2007. Title: Plant Community Recovery after High Severity Wildfire and Post-fire

Fungal diversity within decomposing woody conifer roots in Oregon

Creator:: Vandegrift, V. Eleanor
Abstract:: Previous studies have indicated that roots from five tree species (Picea sitchensis, Tsuga heterophylla, Pseudotsuga menziesii, Pinus ponderosa, and Pinus contorta) decompose at different rates across an environmental gradient in Oregon. Measurements of wood chemistry from each tree species as well as moisture and temperature from each location do not...
Resource Type:: Masters Thesis
Full Text:: decomposition based upon the fungal community information. Consequently, the analysis focused on comparing

ScholarsArchive@OSU

The quantity and composition of ground vegetation in different light environments under a Douglas-fir, Pseudotsuga menziesii (Mirb) Franco, stand in the Oregon Coast Range

Nitrogen status in Oregon Coast Range forest communities

Relationships between plant associations and environment within McDonald-Dunn Forest

Plant and amphibian assemblages in zero-order basins in the Oregon Coast Range

The structure and dynamics of red alder communities in the central coast range of western Oregon

Stable, low-growing plant communities in the western Cascade Mountains : species processes and their implications for rights-of-way management

A plant association classification for McDonald-Dunn Forest

Plant community recovery after high severity wildfire and post-fire management in the Klamath Region

Fungal diversity within decomposing woody conifer roots in Oregon

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