The purpose of this thesis is to examine the problem of the
increasing competition between recreation and irrigation at Wallowa
Lake. Originally Wallowa Lake was an abundant source of fish for
the Indians but the advent of irrigation in the area by the early settlers eliminated the blueback salmon (oncorhynchus...
Oregon's minimum stream flow program
attempts to preserve adequate flows of water for
the instream needs of aquatic life and pollution
abatement. Conflicts with consumptive uses of
water have indicated that improvements are needed
in the program. The conflicts are explored and
specific improvements suggested.
Land use regulation as a nonstructural method of flood
damage mitigation has proven to be a controversial measure due, among
other things, to suspected adverse impacts upon residential land values.
Little evidence, however, has been gathered to substantiate this claim.
This study attempts to analyze the relationship between flood plain...
The rise of water level in Malheur Lake in Southeastern
Oregon has become a major issue of concern in Harney County,
where the lake is located, and on a state-wide level. The
concern is due to the extensive damage caused by flood water
to agricultural land, highways and roads, a...
Flood plain regulations are one of six major adjustments
used to cope with flood hazard in the United States. This adjustment
was essentially neglected in the national flood hazard policies
until Congress enacted the National Flood Insurance Act of 1968.
The implementation of regulations, as called for in the Act,...
In recent years, low lake levels at Fern Ridge, Oregon have become a major concern
for recreationists in the southern Willamette Valley. A filled reservoir is necessary for the most
popular water sport at Fern Ridge: sailing. The Army Corps of Engineers manages Fern Ridge as
part of the Willamette...
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...
Nonpoint source pollution is a widespread problem with no easy solutions. The variable nature of nonpoint
sources and the wide range of best management practices, coupled with a multitude of managerial constraints, make management of nonpoint source pollution a difficult task. Wisconsin's Nonpoint Source Water Pollution Abatement Program overcomes many...
The practice of river and stream restoration has
increased with heightened environmental concerns and
awareness. Many of these projects use structural
modifications in an attempt to mimic natural landscapes.
These structural modifications represent an active approach
to river and stream restoration. Active restoration
projects are well funded and extensively constructed....