Exploring energy flows embodied in China's economy from the regional and sectoral perspectives via combination of multi-regional input–output analysis and a complex network approach
Exploring energy flows embodied in China's economy from the regional and sectoral perspectives via combination of multi-regional input–output analysis and a complex network approach
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DOI：
10.1016/j.energy.2018.12.164
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发表时间：
2019-03
期刊：
影响因子：
9
通讯作者：
Miaohan Tang;Jingke Hong;Guiwen Liu;G. Shen
中科院分区：
文献类型：
--
作者：
Miaohan Tang;Jingke Hong;Guiwen Liu;G. Shen
中国快速城市化带来了巨大的能源需求，也加大了可持续发展的压力。因此，研究中国现代经济引发的蕴含能量流动具有重要意义。本研究将多区域投入产出（MRIO）模型与复杂网络方法相结合，从区域和部门两个角度构建了包含能量流网络（EEFNs）。通过评估平均聚类系数和平均路径长度来探索当前EEFN的小世界性质。研究结果表明，在关键节点或流动中发生的任何扰动都会对整个具身能系统产生实质性影响。从区域来看，广东、河北、江苏、上海和浙江的中心性指数一直名列前茅。从部门的角度来看，化学工业、金属的冶炼和压制、运输、储存、邮电和一般和特殊用途机械的制造是东欧高度联系的部门。社区检测进一步揭示了社区之间存在的明显的数量分离。在群落内也观察到异质效应。中国中西部省份是推动东部地区经济发展的能源供应国。经济合作组织作为一个整体，对实体能源贸易体系的影响更为明显。从部门的角度看，各社区的部门隐含能源利用表现出显著的聚类特征。本研究的结果可以从区域和行业的角度为供应商和消费者制定公平合理的节能政策。
Rapid urbanization has produced considerable energy demands in China and increased pressure on sustainable development. Therefore, investigating the embodied energy flows induced by China's modern economy is important. By integrating the multi-regional input–output (MRIO) model with the complex network approach, this study builds two embodied energy flow networks (EEFNs) from the regional and sectoral perspectives. The small-world nature is explored in the current EEFN by assessing the average clustering coefficient and average path length. Findings indicate that any disturbance occurring in key nodes or flows can generate substantial effects on the whole embodied energy system. From a regional perspective, Guangdong, Hebei, Jiangsu, Shanghai, and Zhejiang consistently rank highest in terms of centrality indices. From a sectoral perspective, the chemical industry, the smelting and pressing of metals, the transportation, storage, posts and telecommunications, and the manufacture of general and special purpose machinery are highly connected sectors in the EEFN. Community detection further reveals an apparent separation of amounts existing among communities. Heterogeneous effects within communities are also observed. Provinces located in the western and central areas of China act as energy suppliers to promote economic development in the eastern area. Economic cooperation organizations, when taken as a whole, exert more apparent influences on the embodied energy trade system. From a sectoral perspective, the embodied energy use of sectors in each community displays remarkable clustering features. The findings of this study can help formulate fair and reasonable energy-saving policies for suppliers and consumers from the regional and sectoral perspectives.