This paper is based on the adequate survey of agroforestry ecosystems in the Three Gorges Reservoir Area. Applying ecological principles and ecological economy principles, making use of AHP, and on the basis of the results of systematic researches on biomass and productivity, material cycle, energy flow, value flow and land use ratio of agroforestry ecosystems, this paper assesses the economic benefits, ecological benefits, social benefits and comprehensive benefits of the four types of agroforestry ecosyst...