Continuous cover forestry

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. The term "continuous cover forestry" does not equate exactly to any one particular silvicultural system, but is typified by selection systems.

Source: Wikipedia — Continuous cover forestry (CC BY-SA 4.0)