Agroforestry extension is not very widely developed. During last 40 years after scientific agroforestry started different models of new agroforestry developed but their adoption and impact studies are limited. In India like countries it has widespread mixed with traditional agroforestry models. So as you no field or agriculture landscape without trees but what kind of models are more preferred, priorities , adoption and impact not properly known. How to develop criteria and indicators for Agroforestry adoption and impact studies? Is there any such studies please share to improve my studies.