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Filtering by: Subject Forest soils -- Nitrogen content -- Sweden Advisor Perakis, Steven Degree Name Master of Science (M.S.)

Nitrogen dynamics across silvicultural canopy gaps in young forests of western Oregon

Creator:

Thiel, Aaron L.

Abstract:

Silvicultural canopy gaps are emerging as an alternative management tool to accelerate development of complex forest structure in young, even-aged forests of the Pacific Northwest. I investigated patterns of nitrogen (N) availability along transects through 0.1 and 0.4 ha silvicultural gaps in three 50-70 year old Douglas-fir forests of western...

Resource Type:

Masters Thesis

Full Text:

forest floor and mineral soil and several factors related to N cycling were measured from November 2005
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

Full Text:

. Hynicka for the degree of Master of Science in Forest Ecosystems and Society and Soil Science presented