中文摘要：

新型城镇化进程中,合理、有序地引导城市群扩容已经日益成为重要的规划议题。基于相关文献,研究归纳了功能联系视角下城市群空间网络的主要特征。首先,城市联系的绝对强度是界定城市群的重要依据;其次,相对于外部的城市联系,城市群内部的功能联系分配应占有明显优势的相对比例;再次,城市群内部网络应以多向联系为主,而非指向单一的中心城市。在这一原则下,以广东新型城镇化战略的区域空间结构为目标,从联系强度、网络群集性、空间邻近性等指标进行综合判别,实现了对清远、河源、阳江、汕尾和云浮5个潜在扩容对象城市的优选比较,提出了珠三角城市群近期扩容的优选对象,在此基础上,结合定性比较的方式对广东区域空间结构的长远发展提出了规划展望。

英文摘要：

In the process of new-type urbanization,conducting the mega-city region to expand more rationally and orderly has become an increasingly significant topic of urban planning. Based on the related reverences,this study summarizes the main characteristics of the urban agglomeration spatial network under the contact angle of the function linkage： first,the absolute strength of the internal link between cities is defining the important basis of city region; Second,relative to the outside of the city link,the internal function link of the urban agglomeration contact ratio distribution should possess obvious advantages; Again,urban agglomeration should be given priority to with multidirectional contact internal network,rather than to one single city at the center of the region. This research try to propose the prior cities in the recent expansion of Pearl River Delta region and the spatial structure vision in Guangdong for a long term under the perspective of function linkages,which based on the comparison among the five potential cities in network strength,network clustering and spatial proximity in the view of relative references.