城市化是人类社会经济发展的必然趋势,是人类走向文明的必经之路。目前,60亿世界人口中,城市人口已高达30亿,占总人口的50％。但是,随着城市化进程的加快,有两大矛盾日益突出。首先是日益恶化的城市生态环境与城市经济实现可持续发展之间的矛盾,其次是人们日益增长的绿色生态文化消费需求与城市建筑不断增加、绿色 Urbanization is an inevitable trend of human social and economic development and the only way for mankind to go to civilization. At present, among the 6 billion people in the world, the urban population has reached as high as 3 billion, accounting for 50% of the total population. However, with the acceleration of urbanization, two major contradictions have become increasingly prominent. The first is the contradiction between the deteriorating urban ecological environment and the sustainable development of urban economy. The second is the ever-increasing green ecological culture. Consumption demand and urban construction are increasing. Green