Yarding
Yarding is a forestry term that refers to the process of gathering logs from the forest, after they have been cut, to a landing or yard where they can be loaded onto trucks or rail cars for transport to a mill or other destination. The term is derived from the practice of creating a central collection point, or yard, for logs.
History[edit | edit source]
The practice of yarding has been in use for centuries, with early methods involving the use of animals, such as oxen or horses, to drag logs to a central yard. This method, known as skidding, was labor-intensive and often resulted in significant damage to the forest floor.
In the late 19th and early 20th centuries, the development of steam-powered machinery led to the introduction of more efficient yarding methods. These included the use of donkey engines and cable logging, which allowed logs to be moved over longer distances with less impact on the environment.
Methods[edit | edit source]
There are several methods of yarding, each with its own advantages and disadvantages. These include:
- Skyline Yarding: This method involves the use of a cable system suspended between two points, usually trees or towers. The logs are attached to the cable and lifted off the ground for transport to the yard. This method is particularly effective in steep or difficult terrain.
- Ground Yarding: This method involves dragging the logs along the ground to the yard. While this method is simpler and often less expensive than skyline yarding, it can cause significant damage to the forest floor.
- Helicopter Yarding: This method involves the use of helicopters to lift and transport logs. While this method is the most expensive, it is also the least damaging to the environment and can be used in areas where other methods are not feasible.
Environmental Impact[edit | edit source]
The method of yarding chosen can have a significant impact on the environment. Ground yarding, for example, can cause soil compaction and erosion, damage to remaining trees, and disruption of wildlife habitats. Skyline and helicopter yarding, while more expensive, generally have less impact on the environment.
See Also[edit | edit source]
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