GEOGRAPHICAL RESEARCH ›› 2017, Vol. 36 ›› Issue (8): 1515-1530.doi: 10.11821/dlyj201708010

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Effects of construction of trans-Bohai strait passageway on economic center of gravity in the Bohai Rim

Zedong WANG1(), Haiyan SUN1(), Fenghua SUN2, Weishan QIN1   

  1. 1. College of Resources and Environmental Engineering, Ludong University, Yantai 264025, Shandong, China
    2. Development Research Center of the Region Encircling the Bohai Sea, Ludong University, Yantai 264025, Shandong, China
  • Received:2017-03-21 Revised:2017-06-19 Online:2017-08-10 Published:2017-09-04

Abstract:

In this paper, the trans-Bohai strait passageway is associated with economic center of gravity of the Bohai Rim. Then, method of time series prediction, theoretical model of center of gravity and revised gravity model are introduced, data of quantity of inter-provincial logistics via trans-Bohai strait passageway and GDP data of 1990-2014 in 89 cities in the Bohai Rim are collected and predicted, and value added in logistics GDP in 89 cities is calculated based on total quantity of logistics, time and cost saved as direct economic benefit of construction of this passageway. Based on this, changes of economic center of gravity of the Bohai Rim in the future are analyzed. The conclusions are as follows: (1) before the trans-Bohai strait passageway is built, the economic center of gravity of the Bohai Rim moves overall in a direction from southwest to northwest and both its distance of movement and rate of change are slowing down in a time-varying way but regional imbalance exists; (2) after the passageway is completed in construction, it is found in combination with hypothetical analysis on whether it makes any difference that the economic balance of the Bohai Rim is constantly improved and the trend of movement of economic center of gravity towards the northwest slightly lags behind, indicating that in view of logistics economy only, the construction of the passageway will not have a fundamental impact on the change of the direction of the economic center of gravity of the Bohai Rim. It is found in further measurement of inter-city logistics economic relation intensity that the moving rate of economic center of gravity of the Bohai Rim towards the geometric center of gravity slightly slows down due to law of range attenuation; (3) main factors influencing the change of economic center of gravity include urban economic aggregation and benefit of time-space compression in logistics transportation; (4) the theory of "force resultant and resolution" is introduced to analyze the mechanism and evolution process of translation of center of gravity and predict and indicate that the trend of movement towards the northeast of the economic center of gravity of the Bohai Rim will be influenced by comprehensive spatial economic effect of the trans-Bohai strait passageway in the future, which will have some positive effects on economic recovery and revitalization of Northeast China.

Key words: trans-Bohai strait passageway, economic center of gravity, added value of logistics GDP, logistics economic relation intensity, Bohai Rim