The Pattern and Process of Adoption and Scaling up: Variation in Project Outcome Reveals the Importance of Multilevel Collaboration in Agroforestry Development By Karl-Erik Johansson, Robert Axelsson, Ngolia Kimanzu, Samuel O. Sassi, Eliza Bwana, Robert Otsyina Tagged with: Adaptation, Collaboration Social learning, Dissemination of agroforestry, Farming system, Participant observation, Poverty alleviation, Sustainable development, Technology adoption