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首页> 外文期刊>Environmental Science & Technology >Betweenness-Based Method to Identify Critical Transmission Sectors for Supply Chain Environmental Pressure Mitigation
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Betweenness-Based Method to Identify Critical Transmission Sectors for Supply Chain Environmental Pressure Mitigation

机译：基于中间论的方法来识别供应链环境压力缓解的关键传输部门

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摘要

To develop industry-specific policies for mitigating environmental pressures, previous studies primarily focus on identifying sectors that directly generate large amounts of environmental pressures (a.k.a. production-based method) or indirectly drive large amounts of environmental pressures through supply chains (e.g., consumption-based method). In addition to those sectors as important environmental pressure producers or drivers, there exist sectors that are also important to environmental pressure mitigation as transmission centers. Economy-wide environmental pressure mitigation might be achieved by improving production efficiency of these key transmission sectors, that is, using less upstream inputs to produce unitary output. We develop a betweenness-based method to measure the importance of transmission sectors, borrowing the betweenness concept from network analysis. We quantify the betweenness of sectors by examining supply chain paths extracted from structural path analysis that pass through a particular sector. We take China as an example and find that those critical transmission sectors identified by betweenness-based method are not always identifiable by existing methods. This indicates that betweenness-based method can provide additional insights that cannot be obtained with existing methods on the roles individual sectors play in generating economy-wide environmental pressures. Betweenness-based method proposed here can therefore complement existing methods for guiding sector-level environmental pressure mitigation strategies.
机译：为了制定缓解环境压力的行业特定政策，以前的研究主要侧重于确定直接产生大量环境压力（又称基于生产的方法）或通过供应链间接驱动大量环境压力（例如基于消耗的方法）的部门。方法）。除了作为重要的环境压力产生者或推动者的那些部门外，还有一些对于传输环境也对减轻环境压力也很重要的部门。通过提高这些关键输电部门的生产效率，即使用较少的上游投入来生产统一的产出，可以减轻整个经济环境的压力。我们借鉴网络分析中的中间性概念，开发了一种基于中间性的方法来衡量传输部门的重要性。我们通过检查从通过特定部门的结构路径分析中提取的供应链路径来量化部门之间的相互关系。我们以中国为例，发现用基于中间性的方法确定的那些关键传输部门并不总是可以通过现有方法来识别。这表明，基于中间性的方法可以提供现有方法无法获得的其他见解，这些见解是各个部门在产生整个经济环境压力方面所起的作用。因此，此处提出的基于中间性的方法可以补充现有的方法，以指导部门级的环境压力缓解策略。

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  • 来源
    《Environmental Science & Technology》 |2016年第3期|1330-1337|共8页
  • 作者

    Sai Liang; Shen Qu; Ming Xu;

  • 作者单位

    School of Natural Resources and Environment, University of Michigan, Ann Arbor, Michigan 48109-1041, United States;

    School of Natural Resources and Environment, University of Michigan, Ann Arbor, Michigan 48109-1041, United States;

    School of Natural Resources and Environment, University of Michigan, Ann Arbor, Michigan 48109-1041, United States,Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109-2125, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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