Taking 14 cities of Gansu Province as examples, this paper adopts the Principal Component Analysis and Cluster Analysis methods based on the theory of sustainable development and ecological city. A total of 36 index factors of the sustainable development of eco-city are selected. Through establishing the evaluation index system of sustainable eco-city, the sustainable development level of eco-cities in Gansu Province is analyzed. Research result is as follows: (1) according to the Principal Component Analysis, there are significant regional differences among the sustainable development of eco-city in Gansu Province; and its influencing factors can be summarized as comprehensive economic development factor, industrial development factor, land-use factor,... |