Resilience Assessment of China's Natural Gas Supply System Based on Ecological Network Analysis

Natural gas is of vital importance to China's economy and social stability. Faced with the current severe situation of tight balance of natural gas supply in China, given the high complexity and uncertainty of the natural gas supply system, the stable supply of natural gas faces enormous challenges. How to improve its supply resilience is the key to be solved urgently. In this paper, the connotation of natural gas supply resilience is defined and a systematic resilience assessment method is proposed based on ecological network analysis. All results are calculated by publicly available data. From the static perspective, it is found that the Chinese natural gas supply resilience increases during 2016-2020. From the dynamic perspective, the characteristics of the restoration of Chinese natural gas supply system is revealed. Based on the results, suggestions are proposed to improve China's natural gas supply resilience. The ENA model developed in this paper is a new perspective for natural gas supply resilience assessment, which can be used as guidance for policy making.