Index Catalog // ScholarsArchive@OSU

Nitrogen, phosphorus and particulate matter budgets of five coniferous forest ecosystems in the western Cascades Range, Oregon.

Creator:: Fredriksen, R. L.
Abstract:: Nutrient and particulate matter balances were established for five ecosystems dominated by Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] in the western Cascades, Oregon. Carriers of N and P were particulate matter (dust in precipitation and sediment in streams) and dissolved matter in both precipitation and stream water. The input and outflow...
Resource Type:: Dissertation

Plant biomass and nutrient distribution in a young Pseudotsuga menziesii forest ecosystem

Creator:: Webber, Bruce Douglas
Resource Type:: Dissertation
Full Text:: Pseudotsuga menziesii forest ecosystem AN ABSTRACT OF THE THESIS OF Bruce Douglas Webber for the Doctor

Soil genesis, classification, and nitrogen cycling in forest ecosystems of the northwestern Rif region of Morocco

Creator:: Ben Jelloun, Hassane
Resource Type:: Dissertation
Full Text:: Soil genesis, classification, and nitrogen cycling in forest

Episodic dynamics of microbial communities associated with the birth and death of ectomycorrhizal mats in old-growth Douglas-fir stands

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

Litter controls of microbial community composition and function in forest soils

Creator:: Brant, Justin B.
Abstract:: Most carbon (C) transformations in soil are carried out by a diverse and complex soil microbial community. The size and composition of the soil microbial community is determined by poorly understood interactions between the quantity and chemical composition of plant inputs, as well as climate. Given the metabolic diversity of...
Resource Type:: Masters Thesis
Full Text:: 10, 2005. Title: Litter Controls of Microbial Communi!Y Composition and Function in Forest Soils

The development and decline dynamics of two ectomycorrhizal fungal mat soil microbial communities in response to a reciprocal soil transfer experiment in old-growth Douglas-fir forests

Creator:: Cappellazzi, Jed E.
Abstract:: Ectomycorrhizal fungi (EmF) form symbioses with trees. These symbioses profoundly influence forest ecology. Certain EmF form specialized profusions of hyphae, known as ectomycorrhizal fungal mats (mats) which are visible to the naked eye, alter forest soil biogeochemistry, substantially contribute to soil microbial biomass/respiration and support unique microbial communities. Piloderma and...
Resource Type:: Masters Thesis
Full Text:: trees. These symbioses profoundly influence forest ecology. Certain EmF form specialized profusions

Microbial and biochemical dynamics of ectomycorrhizal mat and non-mat forest soils

Creator:: Kluber, Laurel A.
Abstract:: Dense hyphal mats formed by ectomycorrhizal (EcM) fungi are prominent features in Douglas-fir (Pseudotsuga menziesii) forest soils and have been estimated to cover up to 40% of the forest floor in some stands. Although previous studies have examined various aspects of EcM fungi, little is known about their associated microbial...
Resource Type:: Dissertation
Full Text:: Ectomycorrhizal Mat and Non- mat Forest Soils Abstract approved: David D. Myrold Dense hyphal mats

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

Creator:: Ghimire, Rama D.
Abstract:: The objective of this study was to examine the variation among ammonia-oxidizing and denitrifying communities in soils of a natural Fennoscandian boreal forest and of a forest with a long history of fertilization with different levels of nitrogen (N), and to examine whether there are any changes in the microbial...
Resource Type:: Masters Thesis
Full Text:: Communities of Ammonia-Oxidizing and Denitrifying Bacteria in Fennoscandian Boreal Forest Soils

Microbial community structure as influenced by season and stand age in a Douglas-fir (Pseudotsuga menziesii) ecosystem

Creator:: Kucera, Jennifer Moore
Abstract:: Forest harvest can have significant impacts on forest ecosystems that may influence the capacity of soils to sequester carbon (C). The microbial community controls decomposition, which is a critical process in partitioning litter- and root-C between CO₂ and storage in semi-permanent soil-C pools. The objectives of this study were to...
Resource Type:: Dissertation
Full Text:: ) Ecosystem Abstract approved: Forest harvest can have significant impacts on forest ecosystems that may

Response of soil microbial communities to physical and chemical disturbances: implications for soil quality and land use sustainability

Creator:: Chaer, Guilherme M.
Abstract:: The objectives of this thesis were to evaluate the responses of soil microbial communities to physical and chemical disturbances, and associate these responses with soil functional stability and changes in soil quality. The first study consisted of application of heat shocks (HS) to soils with contrasting land use history to...
Resource Type:: Dissertation
Full Text:: variation and impacts of site preparation. Forest Ecology and Management 186, 213-225. Corre, M.D

ScholarsArchive@OSU

Nitrogen, phosphorus and particulate matter budgets of five coniferous forest ecosystems in the western Cascades Range, Oregon.

Plant biomass and nutrient distribution in a young Pseudotsuga menziesii forest ecosystem

Soil genesis, classification, and nitrogen cycling in forest ecosystems of the northwestern Rif region of Morocco

Episodic dynamics of microbial communities associated with the birth and death of ectomycorrhizal mats in old-growth Douglas-fir stands

Litter controls of microbial community composition and function in forest soils

The development and decline dynamics of two ectomycorrhizal fungal mat soil microbial communities in response to a reciprocal soil transfer experiment in old-growth Douglas-fir forests

Microbial and biochemical dynamics of ectomycorrhizal mat and non-mat forest soils

Variation in communities of ammonia-oxidizing and denitrifying bacteria in Fennoscandian boreal forest soils

Microbial community structure as influenced by season and stand age in a Douglas-fir (Pseudotsuga menziesii) ecosystem

Response of soil microbial communities to physical and chemical disturbances: implications for soil quality and land use sustainability

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