长江经济带城市体系空间格局演变

发布时间：2018-10-29 19:20

【摘要】：构建科学合理的城市体系空间格局,是推进新型城镇化、促进区域协调发展的重要内容。基于1988、2001、2012年长江经济带城市影响力指数及交通路网数据,运用Kernel密度分析法、分形理论、修正引力模型等方法对长江经济带城市规模结构演变、城市等级结构演变及城市体系演变进行深入分析。结果表明:长江经济带城市规模变化明显,由单一低水平俱乐部向中、高水平的多个俱乐部发展,出现城市规模多峰主的"俱乐部趋同"现象,低、中、高的等级序列分布模式趋于完善;城市规模结构在空间上逐步形成典型的多核心-边缘结构;长江经济带城市规模体系总体呈初级首位型特征,但合理化发展趋势明显;城市引力强度差异持续缩小、地域差异性显著,低层级引力城市多分布在中西部地区;区域内逐步形成长三角、中三角及大西南3大城市体系,而中三角城市体系组织相对松散。基于城市体系格局分析,研究从因素层、机制层、特征层及目标层等4个层次探讨了长江经济带城市体系空间演化机理。
[Abstract]:Constructing a scientific and reasonable spatial pattern of urban system is an important content to promote new urbanization and regional coordinated development. Based on the urban influence index and traffic network data of the Yangtze River Economic Belt in 1988-2001, this paper applies Kernel density analysis, fractal theory and modified gravity model to the evolution of the urban scale structure in the Yangtze Economic Belt. The evolution of urban hierarchy and urban system are analyzed. The results show that the city scale of Yangtze River economic belt changes obviously, from the single low level club to the middle, the high level more than one club development, appears the city scale multi-peak main "club convergence" phenomenon, low, medium, The distribution pattern of high grade sequence tends to be perfect; The urban scale structure has gradually formed the typical multi-core-edge structure in space, the urban scale system of the Yangtze River economic belt is the primary first type in general, but the rationalization development trend is obvious. The difference of urban gravity intensity continues to shrink, the regional difference is significant, and the low-level gravity cities are mostly distributed in the central and western regions. The three urban systems of Yangtze River Delta, Middle Triangle and Southwest China are gradually formed in the region, while the urban system of the Middle Triangle is relatively loose. Based on the analysis of urban system pattern, this paper discusses the spatial evolution mechanism of urban system in the Yangtze Economic Belt from four levels: factor layer, mechanism layer, characteristic layer and target layer.
【作者单位】：东北师范大学地理科学学院;江西师范大学江西经济发展研究院/地理与环境学院;西华师范大学国土资源学院;
【基金】：国家自然科学基金(41161021,41561025)~~
【分类号】：F127

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