Abstract:

Based on the two aspects of urban spatial network structure and scale characteristics, the article uses modified gravity model, social network analysis, standard deviation ellipse analysis, central function model and Theil index model to comprehensively describe the town system in Xinjiang from 2000 to 2017. The results show that: (1) From the perspective of the urban spatial network structure, the scope of the urban network of the Xinjiang town agglomeration continues to expand, and hierarchical stratification is more prominent. The spatial performance is a gradual decrease in the single core with the Wuchangshi town agglomeration as the core. Circular structure. The density of the contact network has declined, but changes are little. Regional connection of sub-town groups needs to be improved. The internal cohesion of Xinjiang's town system is far greater than the outward radiation, and resources are flowing to core area.Regional development is unbalanced. (2) From the perspective of urban scale characteristics, the dominant direction of the regional pattern of Xinjiangtown system is "Northeast-Southwest", the spatial structure is stable for a long time, the core area is concentrated in the middle of Tianshan, and the overall appearance is "a super strong, scattered group" The development pattern of Wuchangshi town agglomeration and other sub-city town agglomeration is very different and the polarization phenomenon is becoming more and more prominent. Each sub-town group shows obvious level differences. At the same time, gap between sub-town groups continued to grow, and progress was relatively fragmented. The function configuration of the town groups continued to shift, showing a sizable "siphon" effect. On the whole, the "center-periphery" characteristics of the study area are suggestive. Regional economic structure has certain drawbacks, but the hierarchical structure and the slight differences between sub-urban groups are the same ones. The framework of regional optimization of the economic structure creates possibilities.

Key words: Xinjiang town cluster, network structure, scale characteristics, Wuchangshi town agglomeration

摘要：

基于城市空间网络结构和规模特征两个方面，运用修正引力模型、社会网络分析、标准差椭圆分析、中心职能模型、泰尔指数模型等，综合刻画2000—2017年新疆城镇体系区域经济的空间发展规律及变化差异。结果表明：（1）从城市空间网络结构来看，新疆城镇体系城市网络的范围持续扩张，等级分层较为突出，空间上表现为以乌昌石城镇群为核心逐级递减的单核圈层结构。联系网络的密度有所下降，但变化较小，各子城镇群的区域联系有待加强。新疆城镇体系的内部凝聚力远大于外向辐射力，整体上形成资源不断涌向核心区域的现象，正处于发展严重不协调阶段。（2）从城市规模特征来看，新疆城镇体系的区域格局主导方向为“东北-西南”，空间结构长期稳定，核心区域集中在天山中部，总体呈现“一级超强，分散组团”的发展格局，乌昌石城镇群与其他区域差距悬殊且极化现象愈加突出，各子区域间表现出明显的等级差异。同时，各地区的差距不断增大，发展也相对割裂，没有形成良好的互动，城镇职能配置不断转移，呈现显著的“虹吸”效应。总体来看，研究区的“中心-外围”特征显著，区域经济格局虽然存在一定弊端，但等级严序的分层结构，次级城镇群间差异较小等特征为优化经济格局框架创造了可能。

关键词: 新疆城镇体系, 网络结构, 规模特征, 乌昌石城镇群