Allocating use in wilderness by rationing is one way to
control crowding and resource deterioration problems. The wilderness
user's perception of wilderness management systems is vital to
effective management decisions when overuse problems arise. The
purpose of this study was to determine which direct rationing
systems users preferred. The five...
Eutrophication is the accelerated aging process of a lake which
generally decreases the water quality in terms of aesthetic and recreational
uses. At Liberty Lake, near Spokane, Washington, eutrophication
has become a problem. Many individuals and agencies are interested in
the benefits that occur when the lake's water quality has...
Certain important concepts from the theory of Gibbs states are
first described in the simple setting of the finite volume case. With
the extension to the infinite volume case, Gibbs states are defined,
exhibiting two different approaches to the subject. The general
structure of the set of Gibbs states is...
An economic cost analysis of 258 Forest Service developed recreation sites in Region One examined eleven different site types, including campgrounds, picnic grounds, boating and swimming sites, interpretive sites, and information sites. Costs were estimated for planning, facilities, and operation and maintenance. Averaging costs by category showed that, in general,...
A detailed cost analysis was performed on 111 U.S. Forest Service campgrounds in the Pacific Northwest (Region 6). Five experience levels were analyzed to estimate facility, operation and maintenance, and opportunity costs. Cost functions, estimated by multiple linear regression analysis to predict the effect of size (number of sites) and...
Published July 1981. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Holocene hemipelagic deposition of terrigenous silts and clays
dominates sedimentation on most of the Oregon and Washington continental
slope. The sources of these sediments, the mechanisms causing sediment
dispersal, and the relative contributions of the various continental
sources to the marine deposits have been investigated using quantitative
mineral and geochemical...
Trace metals in the aquatic environment are generally concentrated
on the surface of solid geochemical phases which eventually become incorporated
into estuarine and marine sediments. The mechanism of trace
metal concentration is believed to be adsorption with various geochemical
phases such as hydrous metal oxides, clays, and organic matter.
Metals...