长江流域资源与环境 >> 2017, Vol. 26 >> Issue (11): 1721-.doi: 10.11870/cjlyzyyhj201711001

• 区域可持续发展 •    下一篇

长江经济带城市体系空间格局演变

冯兴华1,2,钟业喜2,李峥荣3,傅  钰2   

  1. (1.东北师范大学地理科学学院,吉林 长春 130024;2.江西师范大学江西经济发展研究院/地理与环境学院,江西 南昌 330022;3.西华师范大学国土资源学院,四川 南充 637009)
  • 出版日期:2017-11-20

EVOLVEMENT OF SPATIAL PATTERN OF URBAN SYSTEM IN THE ECONOMIC BELT OF YANGTZE RIVER

FENG Xing-hua1,2,ZHONG Ye-xi2,LI Zheng-rong3,FU Yu2   

  1. (1.School of Geography Science, Northeast Normal University, Changchun 130024, China;2.Jiangxi Institute of Economic Development,School of Geography and Environment ,Jiangxi Normal University, Nanchang 330022, China;3.College of Land and Resources,China West Normal University,Nnchong 637009,China)
  • Online:2017-11-20

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: Building a scientific and rational spatial pattern of urban system is very important for promoting new-type urbanization and balancing development between regions. Therefore, this research deeply analyzed the evolvement of urban scale structure, urban Hierarchical Structure and Urban System in Economic Belt of Yangtze River (EBYR) by Kernel density analysis, fractal theory, and modified gravity model etc., based on the urban influence index and road network data of this region in 1988, 2001, and 2012. The results show that: the urban scale in EBYR has changed significantly, from single low-level club to medium and high level of multiple clubs, and appears multimodal “club convergence” phenomenon of main urban scale. Rank hierarchy of distribution pattern tends to be completed. Urban scale structure is gradually formed into a typical multi-core-periphery pattern. Urban scale system overall presents the features of primary first-place type, while its rationalization trend is evident. The difference of urban gravitational intensity continues shrinking, while regional differences are significant and the cities with lower level of gravity locate in the central and western regions. The urban systems of Yangtze Delta, Middle Delta and Great Southwest are gradually formed in this region, however the organization of urban system in Middle Delta was relatively loose. Eventually, this research discussed the spatial evolution mechanism of the urban system in EBYR from four different aspects: factor, mechanism, feature and target.

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