In 1968, Congress passed the Wild and Scenic River Act
creating a system of rivers protected from dams and other
development. By 1987, segments of four Oregon rivers were
protected by the Wild and Scenic River System: the Rogue,
Illinois, Owyhee, and a portion of the Snake along the
Idaho...
During the 1981 grazing season four sets offecal
coliform (FC) concentration data were collected from
streams on sheep grazed clear cut units on the Alsea
Ranger District of the Siuslaw National Forest. The objective
of the study was to access bacterial water quality impacts
from sheep grazing. Sample sites were...
In the American West keeping water instream to protect fish and wildlife, recreation, and water quality is in direct conflict with traditional water laws. While most western states have established instream flow protection programs, protection has been hindered by the basic tenet of the prior appropriation doctrine, first in time,...
Portland, Oregon Is in the northern end of the Willamette River Basin and
Valley. The Willamette River caries the runoff discharge from approximately 12,000 square
miles of basin area, and flows northward where it bisects the Portland metropolitan area
and enters the confluence with the Columbia River. However, high discharge...
The objectives of this research paper are (1) to establish if a
relationship exists between those water-related services - domestic
water and waste disposal - already present in the North Albany are a
prior to 1966 and housing growth that occurred during the period
1966-1975, (2) to assess the impact...
The Greenbelt Land Trust (GLT) (a grass-roots conservation group in
Oregon) is interested in a conservation plan for the Marys River Corridor. To
facilitate this effort, a resource inventory was required and a Geographic
Information System (GIS) data base used to compile the inventory (called the
Marys River Project (MRP))....
Gathering empirical data on the factors and processes affecting bedload transport
in the field is difficult. This project conducted during the winter of 1996 field tested a new
passive method of positively tracking individual particle movement. The project was
conducted in Oak Creek, a gravel bedded stream, located in Corvallis,...
Power planning efforts in Oregon require accurate information
about hydroelectric potential. Potential uses for Geographic Information
Systems (GISs) are being investigated by three Oregon planning agencies.
This paper presents a method in which a 616 is used to help identify and
reduce uncertainty in previous hydroelectric inventories. Uncertainty with
respect...
This study was conducted to test a photographic method of determining the
relationship, if any, between the spectral reflectance and measured levels of nitrogen and
chlorophyll in plots of ryegrass turf. Color and color infrared aerial photos were taken of a
grid of 375 plots of ryegrass in June and...
Water quality problems have been identified in the Chehalis River in the vicinity of Centralia and Chehalis since the 1960's. In 1992, the Washington State Department of Ecology listed four Chehalis River segments, three segments of the Newaukum River, two segments of the Wynoochee River, and three other tributaries -...