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Filtering by: Alternative title ssim PNW 223 Academic Affiliation Forest Ecosystems and Society Degree Field Soil Science

An Analysis of Nutrient Depletion in Douglas-fir Forests of the Oregon Coast Range

Creator:

Siah, Kaveh G.

Abstract:

Nutrient limitation constrains tree growth in many managed forests. Nitrogen (N) is the most common limiting nutrient, but high N supply can shift limitation to other nutrients, particularly phosphorus (P) and the base cations calcium (Ca), magnesium (Mg), and potassium (K). As different soil minerals have different capacities to supply...

Resource Type:

Masters Thesis

Full Text:

gradients in Coast Range forests of the Pacific Northwest (PNW) are reviewed below. Red Alder N
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:

forests of the Pacific Northwest United States (PNW) where the EmF association predominates. The United
Interactions between ecosystem nitrogen and bedrock control long-term calcium sources in Oregon Coast Range forests

Creator:

Hynicka, Justin D.

Abstract:

Ecosystem nitrogen (N) supply strongly influences the availability and cycling of other essential nutrients in temperate forests, especially calcium (Ca). Short-term additions of N that exceed ecosystem demands often increase dissolved nitrate fluxes and decrease soil pH, which can stimulate soil Ca loss. However, the long-term effects of high N...

Resource Type:

Masters Thesis

ScholarsArchive@OSU

An Analysis of Nutrient Depletion in Douglas-fir Forests of the Oregon Coast Range

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

Interactions between ecosystem nitrogen and bedrock control long-term calcium sources in Oregon Coast Range forests

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