SCIENTIA GEOGRAPHICA SINICA ›› 2019, Vol. 39 ›› Issue (6): 920-928.doi: 10.13249/j.cnki.sgs.2019.06.007

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Chinese Marine Economic Polarization Based on DER-Wolfson Index

Caizhi Sun,Kemeng Guo   

  1. Center for Studies of Marine Economy and Sustainable Development of Liaoning Normal University,Dalian 116029, Liaoning, China
  • Received:2018-03-28 Revised:2018-10-25 Online:2019-06-10 Published:2019-06-10
  • Supported by:
    Key Issues of Humanities and Social Science Research Base of Ministry of Education(16JJD790021)


From the perspective of per capita marine output, the density of marine economy, the contribution of marine industries, and with the help of DER index, Wolfson index and information diffusion technology, this study analyzed the trend and regularity of marine economic polarization in 11 coastal provinces in China (not including Hong Kong, Macao and Taiwan) during 1996-2015 , and explained the causes of polarization using the DER index identity-alienation framework .The study found: 1) Between 1996 and 2015, polarization effect begins to appear in the per capita marine output, the density of marine economy, the contribution of marine industries. 2) The DER index and Wolfson index of marine economic density, and contribution of marine industries all showed an upward trend. The DER index of per capita marine output shows an upward trend while the Wolfson index shows a downward trend. 3) The changes of alienation are the major causes of changes in the polarization of the marine economy. So this study proposed countermeasures to promote the coordinated and sustainable development of marine economy in Chinese coastal provinces.

Key words: polarization, DER index, Wolfson index, information diffusion technology, coastal provinces

CLC Number: 

  • K902