The ecosystem services are material base and natural capital for sustainable development of human being. Valuation of ecosystem services is favorable for people realizing the importance of natural ecosystem to human being, and considering its long-term influence on sustainable development of...

Based on the previous research, a total of 10 risk indices are selected according to the specific situation in Sichuan Province, such as natural risk, resource constraint risk, internal management risk, capital risk, technical input and output risk, market risk, contract credit risk, property...