| Financial cost benefit (investment yield, financial net present value, benefit-cost ratio), social and economic benefits (saving rate of medical cost, average household income rate of trained farmers), technical and economic benefits (toilet-flushing water saves, pests and disease reduce rate, fruit or vegetable increase rate, and improve rate of technical skill level), and ecological and economic benefits (saving rate of afforestation cost, reduction of CO2 discharge, reduction of SO2 discharge, soil improvement, fertilizer saving rate) are selected. According to the original survey data of eco-campus economic benefits with 3 different models, Principal Component Projection is used to discuss the calculation method for evaluation index weight of economic... |
