Generally, silviculture is the science and art of growing and cultivating forest [crops], based on a knowledge of silvics .
The study of the life-history and general characteristics of forest trees and stands, with particular reference to local/regional factors.
Silvicultural operations are procedures that aim to achieve stand-specific objectives by using silvicultural techniques.
Such techniques include, for example, canopy alterations to induce natural regeneration, the harvesting of mature trees, planting, and thinning to improve timber quality and stand growth.
Layering is the process whereby the branch of a tree, or other plant, produces roots and is separated from the original plant, becoming a new, separate plant.
Layering is utilized by horticulturists to propagate desirable plants.