The objective of this research was to determine the feasibility of using chitosan
as a natural flocculant to control turbidity during in-stream construction work. A
series of field tests in Oak Creek, Corvallis, OR were conducted in order to test the
effectiveness for turbidity control and the environmental impacts of...
The release of marine debris into the oceans and seas is a global issue of growing concern. These materials are harmful to marine environments and can also transport non-native species to novel habitats. Non-native species floating on marine litter is one of the lesser known impacts associated with marine debris....
The purpose of this study was to determine the significant
variables influencing the damage levels sustained by the residual
stand after skyline thinning of coniferous stands. Damage levels were
measured in ten study areas in western Oregon that had received their
first commercial thinning.
For this post-logging study, 38 units...
The objective of this study was to determine the effect that
ration formulation has on volatilization of gases and offensiveness of
the odor associated with the wastes produced from Holstein replacement
heifers. Six separate experiments were conducted to study the
relationships between different variables on the release of hydrogen
The use of terbacil for weed control was adapted by a high percentage
of Oregon peppermint growers soon after its introduction in
1967. To help clarify some of the implications of terbacil usage,
three studies were undertaken to collect information concerning (a)
the movement and build-up of terbacil in various...
This paper examines the environmental factors influencing
the die-off and transport of fecal coliform bacteria
present in wastes applied to the land surface. These factors
are examined specifically for dairy waste management systems
and the net effect each system has on runoff water quality.
A model is developed that considers...