What are the major agroforestry systems based on the type of component?

There are three main components of agroforestry - crops, trees and livestock.

Agroforestry systems are classified into three categories based on the type of component:

1) Agrisilviculture (crops + trees)

2) Silvopastoral (pasture/livestock + trees)

3) Agrosilvopastoral (crops + pasture + trees)