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Logging

:Clearcutting, or clearfelling, is a controversial forestry/logging practice in which all trees in an area are cut down. Logging companies support the practice for economic reasons. Clearcutting is synonymous with deforestation, which destroys natural habitats and contributes to climate change.
Trees are felled and then delimbed and topped at the stump. The log is then transported to the landing, where it is bucked and loaded on a truck. This leaves the slash (and the nutrients it contains) in the cut area where it must be further treated if wildland fires are of concern.

Horse logging in Poland

Trees and plants are felled and transported to the roadside with top and limbs intact. The trees are then delimbed, topped, and bucked at the landing. This method requires that slash be treated at the landing. In areas with access to cogeneration facilities, the slash can be chipped and used for the production of clean electricity or heat. Full-tree harvesting also refers to utilization of the entire tree including branches and lktops. This technique removes both nutrients and soil cover from the site and so can be harmful to the long term health of the area if no further action is taken, however, depending on the species, many of the limbs are often broken off in handling so the end result may not be as different from tree-length logging as it might seem.

Modern excavator fit up with forestry attachment
Cut-to-length logging is the process of felling, delimbing, bucking and sorting (pulpwood, sawlog, etc.) at the stump area, leaving limbs and tops in the forest. Harvesters fell the tree, delimb and buck it, and place the resulting logs in bunks to be brought to the landing by a skidder or forwarder. This method is usable for smaller timber on ground flat enough that forwarders can operate, but does not work well on steep slopes.
The image at the top of the page illustrates the use of springboards. Loggers cut a springboard notch into which they insert the springboard, which is then used as a platform, allowing the logger to stand above obstructions/snow or to cut higher-up where the trunk is narrower.
harvesting also refers to utilization of the entire tree including branches and lktops. This technique removes both nutrients and soil cover from the site and so can be harmful to the long term health of the area if no further action is taken, however, depending on the species, many of the limbs are often broken off in handling so the end result may not be as different from tree-length logging as it might seem.

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From Wikipedia, the free encyclopedia : Logging
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