When considering a mechanized harvesting operation, the
harvest planner or researcher is faced with a multitude of modern
equipment choices. A decision support system (DSS) is presented
to assist in selecting the appropriate level of mechanization.
The DSS examines individual machines and formulates mechanized
harvesting systems from them that adequately...
Although soil tillage has been used successfully to alleviate compaction of forest soil after logging in a number of management contexts, little is known about the feasibility of tilling in residual stands. In an attempt to weigh the benefits of tillage against possible damage done to residual trees during tillage,...
Skyline logging is a commonly used method of harvesting
logs, particularly on steep slopes. Logging systems
planners frequently solve two kinds of skyline analysis
problems. The first is the maximum payload problem and the
second is the standing skyline load path problem. Computer
assisted skyline analysis techniques have been available...
Approximately 750 million acres, or one-third, of the total area in the United States is in forest land. The United States Forest Service, a 34,000 person agency of the Department of Agriculture, is responsible for the management of roughly 20 percent of the forest land in the United States. The...
Large woody debris recruitment to streams from adjacent riparian forests influences stream
channel morphology, sediment routing, and fish habitat. A mathematical model was developed
to 1) determine whether the trees in a stand adjacent to a stream, upon falling, would provide
large woody debris of a specified size to the...
Land managers are increasingly turning to a new tool for visually depicting, analyzing, and communicating the technical aspects of forestry, specifically in the area of timber harvest and unit design. This tool is computer-based image editing software. In the 1980's, it was referred to as image capture technology, or ICT....
In Pakistan, forest land is either owned by government or at least managed by provincial forest service if it is private land. Timber is logged by contractors and delivered by small four wheel drive trucks over low standard roads to a transfer yard, where it is unloaded to await transport...
The focus of this study centers around the economic, technical, and environmental effects analysis of seven helicopter timber sales on four different national forests in Oregon and Washington. This paper is a constructive critique of these seven sales based on the author's personal observations and data collected from planning documents,...
Traditional rationale for design factors is briefly reviewed. Methodologies for determining these traditional design factors are lacking and are usually based upon subjective reasons which result in applying a design factor of 3.0 in all cases (western United States).
Factors which affect wire rope life are discussed. These factors include...
To improve the present state of Forestry and the
condition of forest workers is an important goal to be achieved in developing countries. With the growth of population, demand for wood products is increasing tremendously. Prices have gone up manyfold. One way to meet this demand is to increase productivity...
