Key transmission sectors of energy-water-carbon nexus pressures in Shanghai, China

Key transmission sectors of energy-water-carbon nexus pressures in Shanghai, China
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中国上海能源-水-碳关系压力的关键传导领域

DOI:
10.1016/j.jclepro.2019.03.251
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发表时间:
2019-07
影响因子:
11.1
通讯作者:
Xu Ming
Xu Ming
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Yang Xuechun;Yi Shijie;Qu Shen;Wang Renqing;Wang Yutao;Xu Ming

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以往研究能源-水-碳关系的方法主要采用基于消费的核算方法,并侧重于单个部门。本文采用介数法和主成分分析法对中国上海市能源-水-碳压力传递中心行业进行了研究。基于介数的方法分析了城市各部门对单一环境压力的传导效应,并应用主成分分析方法讨论了城市各部门对能源-水-碳关系压力的传导。还计算了基于消费的结果以供比较。结果显示,关键的能源-水-碳关系传输部门包括部门20(通信设备,计算机和其他电子设备制造),部门12(化学品和化学产品制造),部门14(加工金属制造),部门35(租赁和租赁,商业服务)和部门30(运输,仓储和邮政)。基于消费的结果表明,部门20和部门12产生了显著的能源-水-碳关系压力。研究结果突出了对环境产生巨大压力的行业,并建议决策者应关注输电行业在城市资源节约和减排中的作用。这些基于介数和基于消费的结果可以结合起来,为评估城市能源-水-碳压力的缓解提供基准。
Previous studies examining the energy-water-carbon nexus mainly use consumption-based accounting and focus on one individual sector. This study employed a betweenness-based method and principal components analysis (PCA) to target the energy-water-carbon pressure transmission center sectors in Shanghai, China IEA, 2012. The betweenness-based method is to analyze the transmission effect of each urban sector regarding one single environmental pressure, and PCA is applied to discuss the energy-water-carbon nexus pressure transmitted by each urban sector. The consumption-based results are also calculated for comparison. The findings show that critical energy-water-carbon nexus transmission sectors included sector 20 (manufacture of communication equipment, computer, and other electronic equipment), sector 12 (manufacture of chemicals and chemical products), sector 14 (manufacture of processing metals), sector 35 (renting and leasing, business services), and sector 30 (transport, storage, and post). The consumption-based results showed that sector 20 and sector 12 generate remarkable energy-water-carbon nexus pressures. The results highlight the sectors that exert a significant amount of environmental pressures and suggest that policymakers should pay attention to the role that transmission sectors play in urban resource conservation and emission reduction. These betweenness-based and consumption-based results can be combined to provide a benchmark for evaluating the mitigation of energy-water-carbon pressures in cities.
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