Agroforestry is the intentional integration of trees and shrubs into crop and animal farming systems to create environmental, economic, and social benefits. It has been practiced in the United States and around the world for centuries. The USDA Agroforestry Factsheet provides more information about agroforestry and its future. For a management practice to be called agroforestry, it typically must satisfy the four "i"s: 1.) Intentional, 2.) Intensive, 3.) Integrated, and 4.) Interactive.