The indices and the evaluation method of eco-city
生态城市指标体系与评价方法

Eco-city is a social-economic-natural harmonization development system according with the ecology principle. Now the research of eco-city theory is mainly focused on the planning, designing, and management of city. The assessment of eco-city is the basis for the planners to evaluate the effect of their eco-city planning. This paper reviewed the history and the connotation of eco-city theory, and designed the indices system of the Yangzhou eco-city planning based on the expert consultation to evaluate the eco-city's development ability. The indices system includes social, economic and natural factors, and the coupling status of these three subsystems. The entire-array-polygon evaluation method was offered to evaluate the Yangzhou eco-city planning using the designed indices system. And the results show that the synthesis index of Yangzhou Eco-city will be 0.44 in 2005, and the development ability will belong to class III and will be general. It will be 0.64 in 2010, and the ability will belong to class II and will be better. It will reach to 0.85 in 2020, and the ability will belong to class I and will be excellent. The process of evaluation shows that the indices system and the evaluation method are very simple and easily applied, and the entire-array-polygon method is capable of validating the system integrating theory that synthesis is bigger or smaller than the sum of elements.