The evolution of the spatial-temporal patterns of global energy security since the 1990s

The evolution of the spatial-temporal patterns of

global energy security since the 1990s

WANG Qiang;XU Linglin;LI Na;DU Xue;WU Shidai;TIAN Lanlan;WU Chenlu

【期刊名称】《地理学报（英文版）》 【年(卷),期】2019(029)008

【摘要】In this study,we developed an energy security evaluation model (ESEM) from three dimensions,energy supply-transport security,safety of energy

utilization,and

stability

of

political-socioeconomic

environment,based on the integrated application of subjective and objective weight allocation technique.Then the spatial-temporal evolution of global energy security pattern and its driving mechanism was analyzed with the method above,and the results are shown as follows:(1) since the 1990s,the spatial patterns of global energy security have shown a deteriorating trend,with the growth of countries in at-risk type and relatively at-risk type.(2) The spatial distribution of countries with secure energy system shows a strong stability,and these countries are concentrated persistently in Western Europe and North America.The spatial evolution of countries with relatively secure energy system also presents a strong stability,which are mainly distributed in the periphery of the secure ones,namely Central and Southern Europe,South America and Eurasia,while countries with general energy system are mainly distributed in Asia,Africa and Southern Europe,and the spatial-temporal