基于航次加权的世界集装箱港口复杂网络结构及港口中心性研究

Research on complex network structure and port centrality of world container ports based on voyage weighting

为探寻世界集装箱港口中心性及网络结构层次,以港口作为节点、港口间的联系作为边、航次作为权重,构建世界集装箱港口复杂网络,并对网络的结构和特性进行研究.结果表明:世界集装箱港口网络符合小世界和无标度特性,且可被划分为6个层次;枢纽港在全球的地理分布不均衡,主要集中于东亚和东南亚,且通过与拓扑网络指标的对比可以看出,以航次作为权重的加权网络更能反映世界集装箱港口的中心性及重要性.该结论可为政府相关海运政策的制定、港航企业的发展规划和全球运力配置提供参考.

In order to explore the centrality and network structure level of world container ports,the complex network of container ports in the world was constructed by using the ports as nodes,the connections between ports as edges,and the voyage as weights to study the structure and characteristics of the network.The results show that the world container port network conforms to the characteristics of small-world and scale-free,and which can be divided into six levels.The geographical distribution of hub ports in the world is uneven,mainly concentrated in East Asia and Southeast Asia.And it can be seen from the comparison with the topological network index that the weighted network with voyage as the weight can better reflect the centrality and importance of container ports in the world.This conclusion can provide reference for the formulation of government maritime transport policies,the development planning of port and waterway enterprises and global transport capacity allocation.