摘要
基于2007—2014年世界天然气贸易数据,利用社会网络分析方法研究了世界管道天然气和液化天然气贸易的网络密度、中心性和聚类系数等指标。结果表明:第一,世界天然气贸易网络密度总体很低,但液化天然气的网络密度要明显大于管道天然气的网络密度;第二,天然气主要贸易节点国家有俄罗斯、土库曼斯坦、挪威、日本、韩国、意大利以及中国等,且中国对世界天然气贸易的影响力正在快速上升;第三,世界液化天然气贸易网络的聚类系数在不断上升,而管道天然气的聚类系数则在下降,这说明液化天然气贸易的区域性特征得到了强化;第四,网络结构图显示世界液化天然气贸易网络演化速度快于管道天然气。未来,随着页岩气革命以及美国能源独立影响的进一步加深,世界液化天然气贸易的活跃程度将会进一步提高,其贸易网络密度和聚类系数也会进一步提升。
Based on world gas trade data during the period of 2007-2014, this article analyzes the network density, centrality and clustering coefficient of the trade of the world＇ s pipeline natural gas （PNG） and liquefied natural gas （LNG） by using the social network analysis method. The results show that： firstly, the global natural gas trade network is low in density, but the network density of LNG is obviously higher than that of PNG; secondly, the main trading node countries are Russia, Turkmenistan, Norway, Japan, Korea, Italy and China. China＇ s influence on the world＇ s natural gas trade is rapidly increasing in recent years; thirdly, the clustering coefficient of LNG trade network is constantly increasing while that of PNG is declining, which reflects that the regional trade characteristics of LNG has been strengthened; fourthly, the trade network chart shows that the world＇ s LNG trade network is evolving faster than that of PNG. In the future, with the influence of shale gas revolution and American energy independence, the world＇ s LNG trade will be further activated, and its global trade network density as well as clustering coefficient will be further enhanced.
出处
《经济地理》
CSSCI
北大核心
2016年第12期89-95,共7页
Economic Geography
基金
国家社会科学基金项目(15BGJ023)
关键词
能源
天然气贸易
美国能源独立
进口
社会网络分析
世界
energy
natural gas trade
American energy independence
import
social network analysis
world
