摘要
快速的经济增长带动了强烈的能源需求，各省通过煤炭运输形成了相互关联的复杂网络。采用复杂网络分析法对中国1998--2008年煤炭铁路流通网络空间特征、拓扑结构和子群组成进行了分析，结果发现：①国家煤炭铁路流通网络以山西、河南、甘肃为核心，呈辐射结构的空间状态；节点间流量规模差异巨大，以山西一河北间流量最为显著。②拓扑结构分析显示，10年间国家煤炭铁路流通网络密度不断增大，平均路径长度减小，聚集系数增加，网络结构不断优化，网络度值分布呈现位序一规模特征。③经过竞争和重组，各节点地域组团特征明显，形成西北、东北、东南、西南4个子群；各子群间、子群内联系程度不断增加，相比而言，子群内部节点联系更加密切。
Rapid economy increase drive strong energy demand of China in recent years, provinces build complex network contact because of coal resource railway transportation. In this paper, complex network theory was used to analysis China coal resource railway circulation network＇ s spatial characteristic and topological structure and subgroups change from 1998 to 2008. Results indicate： firstly, in national coal resource railway circulation network, Shaanxi Province and Henan Province and Gansu Province is main hub of main network and take on radial structure in space; coal circulation size have great difference in provinces, the biggest flow scale present from Shaanxi Province to Hebei Province. Secondly, topological analysis indicate that density and cluster coefficient of national coal resource railway circulation network is increasing and average path length is deceasing, network whole structure is optimizing and nodes degree distribution show rank-scale rule. Thirdly, geographical adjacent provinces have more contact and easy to form subgroup after competition and recombination. There are four subgroups in China coal resource railway circulation network that are northwest and northeast and southeast and southwest. Contact densities keep increasing both in subgroup and inter subgroup, but provinces contact in subgroup is more than inter subgroup.
出处
《经济地理》
CSSCI
北大核心
2013年第1期98-104,共7页
Economic Geography
基金
国家社会科学基金项目(11CJY039)
国家自然科学基金项目(40801234)
山东省优秀中青年科学家科研奖励基金项目(BS2012SF001)
山东省教育厅人文社会科学项目(J12WG59)
关键词
煤炭运输
铁路流通网络
煤炭资源
复杂网络
拓扑结构
coal transportation
railway circulation network
coal resource
complex network
topological structure
