Silviculture is the care and cultivation of woodlands (as opposed to arboriculture which is the care and cultivation of individual trees.) There is a wide range of different silvicultural systems which are, broadly speaking, management prescriptions for particular types and areas of woodland. Forestry, at its most basic level, is the interaction between tree species, site characteristics and a silvicultural system. There are a number of different silvicultural systems described here:

and an explanation of how they can be used to manage woodland yield here: