Relationship and Influence Factors between Change of the Industrial and Urban and Township Spatial Structures of the Yangtze Delta Area

To an area concentrated with cities and towns,change of the mode of econom-ic growth and upgrade of industrial structure need a rational and orderly pattern of the urban and township spatial structure as to back up.Through detailed analysis of the con-cept and nature of the megalopolis,this paper discusses the relationship and influence factors between change of the industrial and urban and township spatial structures of the Yangtze Delta Area and argues that:i) the two highly modernized networks(infrastructure networks and the market and industrial organization networks) based on functional division of labor between individual cities possess crucial importance in facilitating change and up-grade of the industrial structure on one side and sustained optimization of the organization-al pattern of the urban and township spatial structure on the other;ii) in the light of the Yangtze Delta Area,influence factors in promoting positive corresponding states between change of the industrial structure and urban and township spatial structure are concerned with development level of the first place city,rational and orderly hierarchy of the urban and township system and,meanwhile,up-to-dateness of the city networks.Relatively,the second and third factors mentioned above are among the most important and the keys in strengthening interlocking between facilitating change and upgrade of the industrial struc-ture and promoting optimization of the pattern of the urban and township spatial structure.