CONTACTING ON THE FUNCTION AND OPTIMIZING ON THE STRUCTURE IN GUANZHONG URBAN AGGLOMERATION
分析了关中城市群内城市间联系的形成机制、功能结构特征，并提出了优化城市群结构的措施，如加快城市化、扩大规模、强化西安中心功能等。
This paper analyse urban influence regions in three degrees. Industrial difference is the basic impetus that forming contact between cities, which realize the aims by the network of traffic and communication. There has a special function of history base and urban levels in the formation of regional urban contact. The features of degree-scale that take great difference, lopsided structure as characters have been discussed in the urban agglomeration. The thesis has researched detailed traits of function-structure and expounded the framework of spacial network, the pattern of collective distribution and distributed regular of three degrees, multiple cores, circinal levels in the urban agglomeration. At last, the measures that optimize the structures of urban agglomeration are put forward, namely, quickening urbanization course, enlarging scale of urban agglomeration, intensifying central function of Xi′an, forming contact network in urban agglomeration which takes primacy city as core, taking several urban development axes and intensifying contact with other border urban agglomeration.