Even aged high forest - Forest Research

Conventional silviculture consisting of even aged stands of trees

Silvicultural system	Rotation length	Regeneration method	Thinning	Felling	Notes
Clear fell/clear cut	Depends on species; a minimum of 40-60 years, but may be longer than 160 years for slow growing species such as oak	Usually planting on larger areas, may use natural regeneration from seed on smaller areas	May take place throughout the lifetime of the crop. Thinning may be systematic (eg every third tree) or selective (eg the 20% of trees with the poorest form)	The crop is cleared by a single felling at the end of the rotation	There is a grey area between a heavy thinning of a forest stand, and some of the systematic regeneration methods described below