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Coppice trees3/29/2023 ![]() ![]() ![]() Or unacceptable, according to the type of forest and the management objectives for the forest. This change may be either desirable or undesirable, acceptable Stand-tending operations, such as thinning, pruning, and fertilization, can easily be incorporated into the system to meet these specific objectives.Ĭlearcutting has the potential to create the greatest degree of ecological change in the harvested ecosystem. Numerous growth and yield models and tools are available to help managers design clearcut systems to produce certain volumes of specific timber products. Such a situation is unprecedented in forestry and provides us with our greatest challenge in developing silvicultural systems. Old-growth forests are viewed by some as having special intrinsic values, in spite of deteriorating timber and ground forage cover values. In North America the public is pressuring forest managers to alter this approach to old stands. Sometimes, as in lodgepole pine, these old stands are starting to break up and are highly susceptible to damaging agents such as mountain pine beetle. Generally, this system is used to replace old stands with a new vigorous stand as quickly as possible. The clearcut system incorporates all of the advantages associated with managing an entire stand uniformly through time (see Appendix 2). New even-aged stands are regenerated after harvest within the previously cleared block. In a clearcut system the stand overstorey is generally removed in one harvest. Clearcut system Clearcut system variations
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