Agroforestry is the practice of integrating long-term tree crops with annual agronomic crops and/or livestock. This type of integrated agriculture has been successfully practiced for thousands of years in many parts of the world, especially in the tropics. Temperate regions have been a bit slower to adopt agroforestry practices, but in the past decade or so, there has been increasing interest in using agroforestry techniques in temperate countries around the world.