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Selection cutting in California, May 1972 The results of selective cutting of Ponderosa Pine. Selection cutting, also known as selection system, is the silvicultural practice of harvesting trees in a way that moves a forest stand towards an uneven-aged or all-aged condition, or 'structure'.
A felled and delimbed tree is cut into logs of standard sizes, a process called bucking. A logger who specialises in this job is a buck sawyer. Bucking may be done in a variety of ways depending on the logging operation. Trees that have been previously felled and moved to a landing with a log skidder are spread out for processing. While many of ...
McEvoy [7] is very clear and strict: introduced species can not be used at all when working in a close to nature forestry system. Pro Silva makes some distinctions, based on species and conditions. [5] Natural forest systems are to be preserved, but the enrichment with certain introduced species may be positive, depending on circumstances.
The forest is a natural system that can supply different products and services. Forests supply water, mitigate climate change, provide habitats for wildlife including many pollinators which are essential for sustainable food production, provide timber and fuelwood, serve as a source of non-wood forest products including food and medicine, and contribute to rural livelihoods.
Tree breeding is the application of genetic, reproductive biology and economics principles to the genetic improvement and management of forest trees. In contrast to the selective breeding of livestock, arable crops, and horticultural flowers over the last few centuries, the breeding of trees, with the exception of fruit trees, is a relatively recent occurrence.
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85-year-old stand of Douglas fir in the process of transformation to a continuous cover forest. Continuous cover forestry (commonly referred to as "CCF") is an approach to the sustainable management of forests whereby forest stands are maintained in a permanently irregular structure, which is created and sustained through the selection and harvesting of individual trees. [1]
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