The Levels-of-Growing-Stock Studies in Douglas-fir is a regional cooperative to investigate the effects of levels of growing stock on young stand growth. The Hoskins
installation, in western Oregon, was established in a dense, high site natural stand at total age 20 years. The initial thinning resulted in an immediate 131...
The purpose of this study is to provide a systematic method to
analyze relationships between inputs, technology, and market structure
of an industry, and marketing activities among countries in general
and to develop an economic analysis of trade flow of the hardwood
plywood industry in the Far East exporting countries:...
Many streams in eastern Oregon are listed as water quality impaired on the basis of water temperature. However, it is often difficult to predict water temperature for these streams even if there are no anthropogenic impacts. We measured air and water temperature and stream characteristics on three Type C and...
In order to effectively use foodgrain prices as tools of government policy, it is necessary to know the possible effects of price incentives on different economic variables. The present study
attempts to measure the effects of foodgrain prices, upon various economic variables, including production, consumption, both at the farm and...
Weed resistance is usually diagnosed after a weed control practice has lost
efficacy and weed populations begin to increase rapidly. Prediction and validation in
the field at a very early stage of resistance development is a promising method for
preventing an uncontrollable problem. Pattern-thinking helped individuals connect their
experience of...
Most of the presently grown cultivars of rice (Oryza sativa L.) have poor
competitive ability against weeds if compared with traditional cultivars. Therefore,
effective weed control is an important but often costly and difficult management
practice in rice crop production. If weed competitive ability of rice cultivars could be
improved...
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...
The competition or rivalry for the use of water resources
among economic sectors of the Pacific Northwest and among geographical
regions of the western United States has intensified in recent
years. This rivalry and the long run prospects for water shortages
have increased the demand for research concerning the productivity...