A multi-regional structural path analysis of the energy supply chain in China's construction industry
A multi-regional structural path analysis of the energy supply chain in China's construction industry
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DOI：
10.1016/j.enpol.2016.01.017
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发表时间：
2016-05-01
期刊：
影响因子：
9
通讯作者：
Xue, Fan
中科院分区：
文献类型：
--
作者：
Hong, Jingke;Shen, Qiping;Xue, Fan
由于快速的城市化，中国的建筑业对环境产生重大影响，并使用大量资源。本研究以多区域投入产出表为基础进行结构路径分析，以量化环境影响在整个供应链中的传递。结果表明，直接资源投入（第一阶段）沿着现场施工（第零阶段）消耗的能源在供应链中最多，约占总能源消耗的50%。区域分析表明，省一级建筑业的能源消费是自给自足的。部门分析表明，“非金属矿物产品制造”和“金属冶炼和压制”部门的直接投入产生了最重要的能源流动，而“电力和热力的生产和分配”以及“石油和天然气开采”部门对能源使用产生了重大但间接的影响。灵敏度分析表明，SPA的系统边界可以缩小到包含近50%能流信息的前两个上游级，也可以向代表总能耗80%的前5个上游级扩展。(C)2016爱思唯尔有限公司版权所有。
The construction industry in China exerts significant environmental impacts and uses considerable resources because of rapid urbanization. This study conducted a structural path analysis (SPA) based on the multi-regional input-output table to quantify environmental impact transmission in the entire supply chain. Results indicated that the direct resource input (the first stage) along with on-site construction (the zeroth stage) consumed the highest amount of energy in the supply chain and accounted for approximately 50% of total energy consumption. Regional analysis showed that energy consumption in the construction industry at the provincial level was self-sufficient. Sectoral analysis demonstrated that the direct inputs from the sectors of "manufacture of non-metallic mineral products" and "smelting and pressing of metals" generated the most important energy flows, whereas the sectors of "production and distribution of electric power and heat power" and "extraction of petroleum and natural gas" significantly but indirectly influenced energy use. Sensitivity analysis exhibited that the system boundary of SPA could be narrowed down into the first two upstream stages that contained nearly 50% of energy flow information or expanded toward the first five upstream stages that represented 80% of total energy consumption. (C) 2016 Elsevier Ltd. All rights reserved.