A city is a complex ecosystem made up by its society--economy--nature. Urban culture is the soul of it and urban planning is the planning of the future development of this system. Nowadays, urban planning has developed from the rational integrated planning pattern of the end of 19th century to the middle of 20th century into pluralistic patterns of the middle and the end of the 20th century, gradualism planning pattern, strategic pattern and ecological pattern and so on . But in practice, the phenomenon of "every city follows the same pattern ...