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Filtering by: Advisor Bolte, John P. Decade 2000-2009 Degree Name Master of Science (M.S.) Rights Statement Copyright Not Evaluated

Estimating crop yield and production changes as a function of irrigation deficit based on watershed and county level data

Creator:

Darakjian, Priscila

Abstract:

Response of agricultural crops to irrigation water deficit is well-understood at the field scale. Broader scale (watershed and county levels) studies have been less frequently performed. Data collection at the field level for extensive areas is time consuming and expensive. The importance of studies at a broader scale for evaluating...

Resource Type:

Masters Thesis
A spatially explicit method for determining the effects of watershed scale land use on stream conditions

Creator:

Kehmeier, Jonathan W.

Abstract:

The primary goal of this research was to identify the impacts that individual agricultural land uses have on fish communities in small streams located in the Willamette Valley of western Oregon. The diverse nature of the land use features of the valley provided a challenging but useful system for the...

Resource Type:

Masters Thesis
Assessing cumulative influences of watershed-scale landuses on reed canarygrass (Phalaris arundinacea L.) abundance

Creator:

Inahara, Satomi

Abstract:

The West Eugene Wetlands, Eugene, Oregon, which provide habitat for number of endemic and endangered plant species, are currently threatened by a Reed canarygrass (Phalaris arundinacea L.) invasion. This study addresses the hypothesis that Phalaris spread can be explained in part by using watershed-scale landuse patterns as surrogates of the...

Resource Type:

Masters Thesis