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›› 2016, Vol. 33 ›› Issue (1): 75-81.DOI: 10.7523/j.issn.2095-6134.2016.01.012

• Research Articles • Previous Articles     Next Articles

Functional polycentricity in Yangtze River delta based on social network analysis

YE Lei1,2, DUAN Xuejun1, OU Xiangjun3   

  1. 1. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China;
    3. Jiangsu Normal University, Xuzhou 221006, Jiangsu, China
  • Received:2015-03-16 Revised:2015-05-21 Online:2016-01-15

Abstract:

Functional polycentricity is a new regional spatial structure in the world in the 21st century and it will show a great economic power under the influence of economic globalization and the new labor division. In this paper we judge whether the functional polycentricity exists in Yangtze River delta (YRD) using the method of social network analysis and functional polycentricity index. Then we calculate the polarization effect and diffusion effect to further certify the former conclusion. The results are given below. YRD gradually shows a trend of coordinated development ——the core cities as the power source combined with other small and medium-sized cities. YRD shows a rank-size distribution under the constraints of the urban hierarchy system, which is the base of a functional polycentricity. The functional polycentricity in YRD is the result of regional polarization effect and diffusion effect. The former effect comes from the large-scale gathering of APS (advanced producer services), and the latter comes from the regional spread of basic manufactures.

Key words: functional polycentricity, social network analysis, polarization effect, diffusion effect, economic polarized area of Yangtze River delta

CLC Number: