Quantitative Study of Eco-City in Northwest China.

Abstract: This paper responds to challenges made by city issues. A sustainable city is one that relates social,environment and economic. Based on the three areas of social progress, environmental protection and economic development, the paper gives the compound system model of eco-city construction. Methods of Factor Analysis are used to establish a evaluation system of comprehensive developmental level of eco-city construction level in china and measure the level of eco-city construction level in china. Thus conclusions were drawn:(1) most cities in China are improving in the eco-city construction level with time, but the spatial differences is still exist, especially Central and Eastern is better than Western. (2) Xi’an ranking the first in 2005 to 2007, second in 2008, showed a slight decrease in the overall state; Lanzhou ranking third in 2005 and2006, ranking the final in 2007and 2008, State of the overall downward; Xining ranking the final in2005, fourth in 2006 and 2007, third in 2008, the overall condition was improving; Yinchuan ranking second from 2005 to 2007,first in 2008, the overall condition was improving; Wulumuqi ranking in fourth 2005 and 2008, the final in 2006, second in 2007, the overall state was fluctuating. [Copyright &y& Elsevier]