Index Catalog // ScholarsArchive@OSU

Distribution patterns of soil-applied herbicides using fluorescent tracers

Creator:: Page, Glen E. and Oregon State University. Agricultural Experiment Station
Abstract:: Published June 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: ' S. I 05 4 es.5- Hoar, Cop- Distribution Patterns of Soil

Soil carbon and nitrogen in old-growth forests in western Oregon and Washington

Creator:: Remillard, Suzanne Marie
Abstract:: Soil organic carbon (SOC, kg C m-2) is an important component in evaluating global C stores. The nitrogen (TN, kg N m"2) cycle is closely linked to C and understanding its role is also important. Contents and distributions of SOC and TN in soil profiles, to 1-meter depth, were estimated...
Resource Type:: Masters Thesis
Full Text:: C content (kg C m"2) .............76 3.7. Multi-level analysis for stand-level soil organic C

Selenium deficiency in soils and its effect on animal health

Creator:: Oldfield, J. E., 1921- and Oregon State University. Agricultural Experiment Station
Abstract:: Published June 1972. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: . Fleming and Walsh (1957) also demonstrated effects of soil leaching upon selenium content by showing that

The link between nitrogen cycling and soil microbial community composition in forest soils of western Oregon

Creator:: Boyle, Stephanie A.
Abstract:: The objectives of this thesis were to examine the links between soil microbial community composition and function using the nitrogen (N) cycle as a model for these interactions and to assess the impact of environmental factors such as microclimate, vegetation type, and nutrient availability on microbial diversity and N transformations...
Resource Type:: Dissertation
Full Text:: concentrations, C mineralization, and water content were measured to gain additional insights into soil

Non-linear nitrogen dynamics and calcium depletion along a temperate forest soil nitrogen gradient

Creator:: Sinkhorn, Emily R.
Abstract:: Understanding how N availability influences base cation stores is critical for long-term ecosystem sustainability. Indices of nitrogen (N) availability and the distribution of nutrients in plant biomass, soil, and soil water were examined across ten young, unpolluted Douglas-fir (Pseudotsuga menziesii) stands in the Oregon Coast Range spanning a three-fold soil...
Resource Type:: Masters Thesis
Full Text:: colonization could be responsible for the mosaic of soil N content seen in the Coast Range (Perakis et al

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:: Master of Science in Soil Science presented on September 14, 2007. Title: Variation in

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:: measure available N content in soil water. As soil water passes near the positive and negative exchange

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:: (Parton et al., 1994). Simulations of soil C dynamics using Century have shown that soil C content

Dissolved nitrogen in surface waters and nitrogen mineralization in riparian soils within a multi-land use basin

Creator:: Evans, Daniel M.
Abstract:: The growing population of Oregon’s Willamette River Basin places an increasing demand on the basin’s surface waters. Watershed-scale research addressing spatial trends of dissolved nitrogen (DN) and its relationship with landuse and soil N dynamics, such as N mineralization, is sparse in the Willamette Basin. I measured DN along 124...
Resource Type:: Masters Thesis
Full Text:: landuse and soil N dynamics, such as N mineralization, is sparse in the Willamette Basin. I measured DN

Yield responses of invasive grasses to carbon doses

Creator:: Brunson, Jessi L.
Abstract:: The sagebrush steppe ecosystem of the northern Great Basin is severely degraded and continues to decline due in large part to the invasive, non-native annual grasses Bromus tectorum L. (cheatgrass) and Taeniatherum caput-medusae (L.) Nevski (medusahead). Restoration of invasive-dominated areas is difficult, but can be enhanced by adding a carbon...
Resource Type:: Masters Thesis
Full Text:: stimulates microbes to immobilize soil inorganic N and reduces yields of fast-growing ruderal plants. How

ScholarsArchive@OSU

Distribution patterns of soil-applied herbicides using fluorescent tracers

Soil carbon and nitrogen in old-growth forests in western Oregon and Washington

Selenium deficiency in soils and its effect on animal health

The link between nitrogen cycling and soil microbial community composition in forest soils of western Oregon

Non-linear nitrogen dynamics and calcium depletion along a temperate forest soil nitrogen gradient

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

Nitrogen dynamics across silvicultural canopy gaps in young forests of western 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

Dissolved nitrogen in surface waters and nitrogen mineralization in riparian soils within a multi-land use basin

Yield responses of invasive grasses to carbon doses

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