Index Catalog // ScholarsArchive@OSU

Influences of nitrogen on carbon dynamics in forest soil and density fractions

Creator:: Swanston, Christopher W.
Abstract:: Application of N fertilizer is a common forest management practice in the Pacific Northwest, yet the long-term influence of fertilization on forest soil properties is not well known. Although elevated N often increases mineralization of C and N from labile organic matter, negative effects have been documented in recalcitrant organic...
Resource Type:: Dissertation

Seedling survival, mycorrhiza development and rhizosphere biology of Pseudotsuga menziesii seedlings outplanted on a degraded forest site in southwestern Oregon

Creator:: Colinas, Carlos
Abstract:: Inoculation of planting holes with small amounts of soil from a mature forest and a plantation improved survival and growth of Pseudotsuga menziesii seedlings in a degraded clear-cut in southwestern Oregon. To determine the component(s) of the transferred soil responsible for survival and growth increases, we treated forest, plantation and...
Resource Type:: Dissertation

Belowground carbon storage and soil organic matter quality following fertilizer and herbicide applications in ponderosa pine plantations along a site-quality gradient in northern California

Creator:: McFarlane, Karis J., 1979-
Abstract:: Belowground carbon (C) storage and quality of soil organic matter (SOM) in forest soils have implications for sustainable forest management and C sequestration, but how these pools change in response to management is poorly understood. I investigated whether fertilization and competing vegetation control, applied alone or in combination early in...
Resource Type:: Dissertation
Full Text:: Forest Enfineering presented on July 27,2007. Title: Belowmound Carbon Storage and Soil Organic

Maritime windstorm influence on soil process in a temperate rainforest

Creator:: Kramer, Marc G.
Abstract:: Maritime cyclonic windstorms cause widespread disturbance to forested ecosystems in southeast Alaska. The consequence of this disturbance process on the movement, storage, and quality of soil carbon, forest hydrology and streamwater chemistry was studied along a windthrow disturbance sequence. Soil profiles were described and the thickness of the major organic...
Resource Type:: Dissertation

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

Creator:: Parke, Jennifer Lee
Resource Type:: Dissertation
Full Text:: potential of VA and ectomycorrhizal fungi in forest soils is affected by logging disturbance, soil

Carbon fluxes across three climatically-distinct forest chronosequences in Oregon

Creator:: Campbell, John
Abstract:: Biometric and gas exchange techniques were used to measure soil respiration (soil surface CO₂ efflux) and NEP (Net Ecosystem Production) across three climatically-distinct forest chronosequences in Oregon. Results indicate significant forest type, age, and forest type x age interaction effects on annual soil respiration. A regional age class distribution skewed...
Resource Type:: Dissertation

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

Creator:: Hunt, Gary, 1945-
Abstract:: Total length and biomass of fungal mycelium in the soil of a young Douglas-fir stand in the central Oregon Coast Range were estimated over 27 months with the agar-film technique. In a second study, phenology and taxonomy of hypogeous (belowground) sporocarps were studied over 32 months in a nearby, young...
Resource Type:: Dissertation
Full Text:: Soil Fungal Hyphal Dynamics and Seasonal Hypogeous

Consolidation, compression, and shear strength of four western Oregon forest soils

Creator:: McNabb, David H.
Abstract:: Forest soils with low bulk densities are often considered less susceptible to compaction than soils with higher bulk densities. The objective of this study was to determine if soil strength controlled the compression of soils with low bulk density. Four soils were selected for this evaluation. Three of these were...
Resource Type:: Dissertation
Full Text:: . III. 1. Relationship between bulk density of a sample of western Oregon forest soil, predicted with

Soil carbon and nutrient dynamics of windthrow chronosequences in spruce-hemlock forests of southern Alaska

Creator:: McClellan, Michael H.
Resource Type:: Dissertation

Soil and growth studies in Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stands near Molalla, Oregon

Creator:: Strand, Robert Fenton
Abstract:: In 1957 three Douglas-fir stands (15-, 25-, and 40-year-old age classes) were selected on a tree farm in the Cascade foothills of northwestern Oregon to study factors affecting site productivity. Soil-moisture, soil-temperature and seasonal radial- growth pattern measurements were made with a Colman moisture meter and a dial gauge dendrometer...
Resource Type:: Dissertation

ScholarsArchive@OSU

Influences of nitrogen on carbon dynamics in forest soil and density fractions

Seedling survival, mycorrhiza development and rhizosphere biology of Pseudotsuga menziesii seedlings outplanted on a degraded forest site in southwestern Oregon

Belowground carbon storage and soil organic matter quality following fertilizer and herbicide applications in ponderosa pine plantations along a site-quality gradient in northern California

Maritime windstorm influence on soil process in a temperate rainforest

Factors affecting the inoculum potential of VA and ectomycorrhizal fungi in forest soils of southwest Oregon and northern California

Carbon fluxes across three climatically-distinct forest chronosequences in Oregon

Soil fungal hyphal dynamics and seasonal hypogeous sporocarp production in western Oregon Douglas-fir forests

Consolidation, compression, and shear strength of four western Oregon forest soils

Soil carbon and nutrient dynamics of windthrow chronosequences in spruce-hemlock forests of southern Alaska

Soil and growth studies in Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stands near Molalla, Oregon

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