Ecological Network Analysis of Urban Energy Metabolism - a Case Study of Fujian Province

This study develops an energy metabolic network to reveal the urban energy system's structural characteristics and identifying the inter-sectoral interactions based on the input-output analysis. A case study of Fujian Province, China, is conducted to illustrate the potential benefits of its use in urban energy metabolism system health diagnosis. It is found that the energy metabolic of Fujian is in the state of sub-health. The energy metabolism model of Fujian Province shows that the Ind sector directly consumes the most energy, reaching 65.7x10(6) tons of standard coal, but completely depends on the Tsp sector. The Tsp sector, however, consumed only 7.86x10(6) tonnes of standard coal directly, but it controlled all sectors. In this paper, there are only two interrelationships among the six sectors of Fujian Province, among which the exploitative relationship accounts for 87% and the competitive relationship accounts for 13%. And the Con sector benefits from the services provided by all other sectors, which is not conducive to the development of the Con sector. The results can provide scientific support to guide the improvement of urban energy metabolic system through adjusting energy structures and regulating energy strategies.