STUDY ON EVOLUTION AND EFFECTS OF THE SPATIAL STRUCTURE OF THE WUHAN URBAN AGGLOMERATION

The Wuhan urban agglomeration is the important region of construction of resource saving and environment friendly oriented society of China,and the significant pivot of the strategic of central China rise abruptly.But in nowadays,there are still some problems in the spatial structure of the Wuhan urban agglomeration,which would do some harmful effects in the development process of the whole urban agglomeration.To explore the spatial structure of the Wuhan urban agglomeration,a series of methods were applied in this study:a mathematical analysis to ascertain the framework of cities in this urban agglomeration,a research on the completed areas expansion and population density based on the grid analysis to ascertain the historic evolution process of this urban agglomeration.It has been identified that a single nucleus model could be the best model to suit the spatial structure.The single nucleus model,which is composed by a large nucleus city and several cluster cities,can be utilized to grow up powerful nucleus,speed up the expansion of nuclear city,but it isn't beneficial to the growth of the cluster cities and the long-term development of whole urban agglomeration.On that base,some preliminary ideas which can optimize the spatial structure of the Wuhan urban agglomeration were introduced,including combining cluster cities into developing centers,enhancing the main functions of some cities,etc.