Index Catalog // ScholarsArchive@OSU

Creator:: Frey, David W.
Abstract:: In intensively managed forest plantations in the northern Oregon Coast Range, herbicides are often applied during site preparation and early stand regeneration to reduce competition for resources for planted conifer seedlings. In addition to reducing competition for crop trees, herbicide applications may affect soil processes including decomposition and nutrient cycling,...
Resource Type:: Masters Thesis
Full Text:: ......................................................................................................................................... 1 Chapter 2: Effects of Intensive Forest Management and Wildlife on Decomposition and Soil

Creator:: Fonte, Steven J.
Abstract:: The role of insect herbivores in the nutrient cycling dynamics of forest ecosystems remains poorly understood. Although past research in herbivory has focused primarily on the deleterious effects that insects can have on tree growth and mortality, the overall effects of herbivory are more complex. Herbivores have the potential to...
Resource Type:: Masters Thesis
Full Text:: Herbivore Generated Inputs on Nutrient Cycling and Soil Processes in a Lower Montane Tropical Rain Forest

Creator:: Hooke, Jennifer Suzanne
Abstract:: The Normalized Burn Ratio and Composite Burn Index were used to classify burn severity in three sites that experienced lightning-ignited wildfire in the year 2000. The effect of burn severity (unburned, low, moderate, and high severity classes) was investigated on vegetation and soil microbial community composition. Vegetation communities showed a...
Resource Type:: Masters Thesis
Full Text:: the degree of Master of Science in Forest Science presented on March 16, 2005. Title: Vegetation

Creator:: Strid, April R.
Abstract:: Soil dissolved organic carbon (DOC) is a small but crucial part of the forest carbon cycle. Characterizing the relationship between detrital inputs and soil DOC chemistry is crucial to understanding the ultimate fate of root carbon, fallen wood and needles. Chemical differences in the DOC pool may help to explain...
Resource Type:: Masters Thesis
Full Text:: forest carbon cycle. Characterizing the relationship between detrital inputs and soil DOC chemistry is

Creator:: Blanchard, Joseph H.
Abstract:: Ectomycorrhizal (ECM) fungi of the genera Piloderma and Ramaria form dense hyphal mats in the organic and upper mineral soil layers, respectively, in coniferous forest floors of the Pacific Northwest. Previous studies have determined that fungal mats change the chemical, physical, and biological properties of the soil within. Little information...
Resource Type:: Masters Thesis
Full Text:: dense hyphal mats in the organic and upper mineral soil layers, respectively, in coniferous forest

Creator:: Wilson, Duncan Steil, 1969-
Abstract:: The relationship between annual foliage production and nitrogen and water stress was examined in 14 naturally regenerated, mid-rotation ponderosa pine stands in central Oregon. Current-year and older foliage masses, and foliage nitrogen contents and concentration were estimated from 132 destructively sampled trees. Litterfall mass and nitrogen retranslocation rates from senescing...
Resource Type:: Dissertation

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