An embodied energy perspective of urban economy: A three-scale analysis for Beijing 2002-2012 with headquarter effect
An embodied energy perspective of urban economy: A three-scale analysis for Beijing 2002-2012 with headquarter effect
复制标题
城市经济的具体能源视角：基于总部效应的北京2002-2012年三尺度分析
DOI：
10.1016/j.scitotenv.2020.139097
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发表时间：
2020
影响因子：
9.8
通讯作者：
Tasawar Hayat
中科院分区：
文献类型：
--
作者：
Yilin Li;Bin Chen;Guoqian Chen;Jing Meng;Tasawar Hayat
作为全球化的典型特征，城市经济中总部的大规模集聚产生了广泛的跨境贸易联系，并不可避免地产生了境外能源使用。因此，关于城市经济体能源使用概况的研究应特别注意它们沿整个供应链沿着的贸易联系所体现的巨大能源转移。在这方面，一个三尺度的投入产出模型，区分当地，国内和国外的活动，以反映跨境嵌入式能源的城市经济的角度来看，在2002-2012年北京的密集的案例研究。结果表明，国内进口能源占北京市总隐含能源使用量的主导地位，而本地能源开采占最终使用量的不到十分之一。在贸易中隐含的能源使用方面，总部效应对隐含能源流入和流出的快速增长有显著贡献。由总部效应引起的能量转移在病例期间几乎增加了一倍。不同产业表现出不同的内含能再分配演化特征。此外，完整的源汇预算的构建，这意味着煤炭的使用仍然占主导地位的北京的总体现能源投入。本研究的分析强调了考虑总部效应对北京隐含能源使用和再分配模式影响的重要性，指出了旨在实现全球能源供应链集体和包容性治理的潜在政策含义。
As the typical characteristic of globalization, large-scale agglomeration of headquarters in urban economies exerts extensive cross-border trade links, and inevitably generates energy use outside their boundary. Therefore, studies about urban economies' energy use profiles should pay special attention to the tremendous energy transfers embodied in their trade connections along the whole supply chain. In this regard, a three-scale input-output model which distinguishes local, domestic and foreign activities is devised to reflect cross border embodied energy perspective for urban economies, with an intensive case study for Beijing during 2002–2012. The results show that domestic imports dominate Beijing's total embodied energy use, while local energy exploitation accounts for less than one-tenths of the final use. Regarding to energy use embodied in trade, headquarter effect contributes significantly to the rapid growth of embodied energy inflows and outflows. Embodied energy transfers induced by headquarter effect almost doubled in the case period. Different industries show distinct embodied energy redistribution evolution characteristics. Moreover, the complete source-to-sink budget is constructed, implying that coal use still dominates Beijing's total embodied energy inputs. Analysis in this study highlights the importance to consider the impacts of headquarter effect on Beijing's embodied energy use and redistribution pattern, pointing the potential room for policy implications aimed to realize collective and inclusive governance of global energy supply chain.