Abstract: Eco-efficiency evaluation of industrial park is one of the key issues that need to be deeply explored in the field of eco-efficiency. The technique for order preference by similarity to solution (TOPSIS) is likely applicable in evaluating eco-efficiency. TOPSIS is an appraisal approach based on the theory of spatial statistics, which can objectively compare and evaluate the integrated index of study cases, through ranking the positive and negative ideal solutions of multiple objects decision-making. Based on the theories of eco-efficiency and circular economy, and the Standard for Integrative Eco-industrial Parks in China (on trial), this paper proposed a circular economy indicator system, and applied the TOPSIS approach to synthetically analyze and assess the eco-efficiency of three circular economy systems, i.e., Suzhou National Hi-Tech Industrial Development Zone (SND), Suzhou Industrial Park Eco-industry Park (SIP), and Wuxi New District Eco-industry Park (WND). The results showed that the eco-efficiency of the three systems was, from best to worst, in the order of WND, SIP, and SND. The three parks varied in four categories of indicators, i.e., economical development, resources and energy source use, material circle, and environmental pollution control. Some advices on the development of circular economy for the three industrial parks were given.

Key words: Climate change, Rice development and its yield formation, Simulation