Plantation forests on mountainous areas in Tanzania, East Africa, were successfully
established in the 1950's. Harvesting started in the 1970's to meet increased national
timber demand. Current problems of unharvested areas and potential environmental
degradation are associated with uncontrolled harvests, mismatch of harvest systems to
site needs, and post-harvest practices....
Steel wire rope is the accepted standard in logging. It is strong, durable, stiff, and dependable in the logger's arsenal. However, steel wire rope has several disadvantages: its strength to weight ratio is low; it is difficult and time-consuming to splice; and used wire ropes contain jaggers. Ultra-high molecular weight...
The three most expensive wildland fire suppression seasons have occurred since 2000, each exceeding $1 billion. Many problems and issues have been highlighted including the grounding of the federal air tanker fleet, training problems with private contractors, overspending, poor management strategies, negative public pefceptions, and the inability to utilize the...
A helicopter operations problem was studied for a private forest landowner testing an
experimental application of minerals on Douglas-fir (Pseudotsuga menziesil) in the Coast Range
of Oregon to offset growth reductions from Swiss needle cast disease. A planning approach was
needed to minimize costs for transportation and aerial application of...
Steel wire rope is used for many logging applications. This material has served the
logging industry well in terms of strength, durability, and longevity; Steel wire rope is
difficult to use because of properties that make it stiff, heavy; and unyielding. These same
properties cause fatigue, exhaustion, and may contribute...