Modeling Economic Spatial Contact among Cities with the Intensity and Structure Model of Urban Flow

The paper employs the intensity model to analyze the spatial contact among cities that attribute to process of urban agglomeration, and builds a structure model to reveal the causality running urban agglomeration system. The study shows that Jiangxi province in China is still in the embryo of urban agglomeration at present, which is in the low degree of formation and development and hasn't had the high density urban clusters with close correlation. And the economic spatial contact among cities is not powerful. Therefore, each city should make better use of its advantages to improve their overall ability, meanwhile enhance their comprehensive service capacity and strengthen the contact quantity of the outward functions. All of this is to provide the dynamics for the formation and development of urban agglomeration.