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Filtering by: Creator Smith, Harrison S. Degree Name Master of Science (M.S.)

Litter decay processes and soil nitrogen availability in native and cheatgrass-dominated arid rangelands

Creator:

Harrison, Kristen S.

Abstract:

As large-scale restorations of degraded rangelands are initiated, land managers need to understand how decades of dominance by the invasive annual grass, cheatgrass (Bromus tectorum L.), have altered ecosystem processes. One way to assess such alterations is by observing differences in decay rates, since decomposition is determined by factors such...

Resource Type:

Masters Thesis

Full Text:

AN ABSTRACT OF THE THESIS OF Kristen S. Harrison for the degree
An investigation of the influence of root reinforcements on soil strength and the initiation of static liquefaction in forest soils

Creator:

Smith, Russell S.

Abstract:

A study was conducted to investigate the influence of root reinforcements on soil strength and the initiation of static liquefaction in forest soils. The design and operation was developed of an apparatus capable of modeling rainfall-induced shallow hill-slope failures that also permitted observation of the soil volume change tendencies at...

Resource Type:

Masters Thesis

Full Text:

AN ABSTRACT OF THE THESIS OF Russell S. Smith for the degree of
Evaluation of responses to selection and association among specific traits in three populations of swine

Creator:

Smith, Edward J. M. S.

Abstract:

Oregon State University swine herd records of 456 litters farrowed between 1962-73 in three populations were analyzed on a generation basis to compare changes in performance of a Composite population to parental Berkshire and Yorkshire breeds. Analysis was performed in six discrete and overlapping generations on backfat thickness, loin eye...

Resource Type:

Masters Thesis

Full Text:

specific traits in three populations of swine AN ABSTRACT OF THE THESIS OF Edward J. Smith for the