METROPOLITAN AREA:THE NECESSARY OPTION OF URBANIZATION IN YANGTZE RIVER DELTA
论证都市圈是城市化发展到一定阶段的必然结果，指出长三角已进入都市圈形成发展阶段，分析其动力机制与问题，并提出推进建议。
This paper first demonstrates the metropolitan area is the inevitable results in some phase of urbanization. Based on this, it points out the Yangtze river delta has been into the formation and development stage of metropolitan area, analyzes the dynamic mechanism and some issues, lastly brings up some suggestions on how to propel the development of metropolitan area in this region.