Acta Geographica Sinica ›› 2001, Vol. 56 ›› Issue (5): 590-598.doi: 10.11821/xb200105010

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The Functional Structure of the Lower Changjiang River Port System

CAO You hui1,2, MAO Han ying1, XU Gang3   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Department of Geography, Anhui Normal University, Wuhu 241000, China;
    3. Nanjing Institute of Geography and Limnology, CAS, Nanjing 210008, China
  • Received:2000-12-08 Revised:2001-05-10 Online:2001-09-15 Published:2001-09-15
  • Supported by:
    Region Exploiting Project of CAS,No.Region IV-034

Abstract: Based on cargo commodity data of 12 principal ports of the lower Changjiang River, this paper calculates cargo location quotient of the port system in 1996.It can initially be seen that the port system has appeared the functional division system, which is characterized by three types and four sub types. However, there is not obvious functional disparity between several large ports (i.e. B1 type ports) and medium size, small ports. Sometimes, several medium sized and small ports possess too many specialized commodities. A practical formula of the coefficient of labour division of port(CLDP) is designed for determining the direction and degree of dynamic change of the functional structure of the port system. By calculating the concerned statistics from 1965 to 1996,it can be seen that CLDP in 1965 is 3.91, which was very high, then there appeared a steady tendency to drop. In 1996, CLDP reached its minimum which is 2.18. The above calculating results show that there has been to some extent homogeneity of the functional structure of this port system for recent 31 years. The authors hold that the following factors have profound implication on dynamic change of the functional structure of the port system: universal economic development along the lower Changjiang River, functional change of center port, homogeneity of industrial structure of port cities, transformation of management system of port. Comprehensive strength indexes of ports in the lower Changjiang River are calculated with the aid of R type factor analysis in which 12 evaluating indicators are as the cases. It can clearly be seen that there are four hierarchies of the functional structure of the port system. According to the above analysis results, the authors hold that there are three points for optimization of the functional structure of the port system:(1)Shanghai shall become a shipping center which is characterized by general cargo container transport and ship service;(2)Nanjing shall become a sub center port which is characterized by energy resource, other bulk cargo transit center;(3)Others shall be regional and local ports which provide service for economic development at local and regional levels.

Key words: the lower Changjiang River, port system, functional structure

CLC Number: 

  • F552