Tracing the sources of air pollutant emissions embodied in exports in the Yangtze River Delta, China: A four-level perspective
Tracing the sources of air pollutant emissions embodied in exports in the Yangtze River Delta, China: A four-level perspective
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DOI：
10.1016/j.jclepro.2020.120155
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发表时间：
2020-05
影响因子：
11.1
通讯作者：
Xinxian Qi;Xiyan Mao;Xianjin Huang;Danyang Wang;Hongyan Zhao;Hong Yang
中科院分区：
文献类型：
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作者：
Xinxian Qi;Xiyan Mao;Xianjin Huang;Danyang Wang;Hongyan Zhao;Hong Yang
研究对外贸易对当地环境的净影响需要多尺度的视角。越来越多的学者致力于建立全球-国家-地方的联系体系或地方-非地方的联系分工。然而，尽管大都市区在加速区域一体化和增加区域污染方面发挥了重要作用，但在大都市区一级的分析却在某种程度上被忽视了。在已有的多尺度投入产出模型基础上引入计量经济学，构建了一个四层次的分析框架，对长江三角洲地区的出口隐含排放进行了分析。由于这一地区是中国经济转型的先驱，因此本研究进一步运用结构分解分析（SDA）来研究中国经济转型的结构变化。实证结果表明，长三角地区的对外直接投资主要受本地联系和跨境联系的影响，分别占该地区对外直接投资的85.1%和9.8%。必须通过轻工业和能源等部门的地方技术创新来减少地方与非政府组织联系的增加。要防止长江三角洲成为发达国家的污染避风港，必须通过调整轻工业生产和消费结构，减少跨界联动。可以通过建筑行业的技术升级来减少跨区域的EEE联系。区域内联系减少而跨区域联系增加的趋势表明，长三角的出口往往是外向型的，而不是内向型的。用于审查可持续发展的四级框架为缓解区域空气污染提供了新的详细见解。
Investigating the net effects of foreign trade on the local environment requires a multiscale perspective. Increasingly, scholars have been investing effort to establish a global–national–local system of linkages or a local–nonlocal division of linkages. However, analysis at the megaregion level has somehow been overlooked, although megaregions play a substantial role in the context of accelerating regional integration and increasing regional pollution. This study incorporated megaregions into the existing multiscale input-output model and constructed a four-level analytical framework to analyze the emissions embodied in exports (EEE) in the Yangtze River Delta (YRD) region. Since this region pioneered the economic transition in China, this study further applies structural decomposition analysis (SDA) to investigate the structural changes in EEE. The empirical results show that EEE in the YRD region was mainly affected by local and cross-border linkages, which account for 85.1% and 9.8% of the total EEE in the region. The increase in local EEE linkages needs to be reduced by local technological innovation in sectors such as light industry and energy. To prevent the YRD from becoming a pollution haven for developed countries, the cross-border EEE linkage must be reduced by adjusting the production and consumption structure of light industry. Cross-regional EEE linkage can be reduced through technology upgrades in the construction sector. The trend of a decrease in intraregional linkage and an increase in cross-regional linkage indicates that YRD exports tend to be outward rather than inward oriented. The four-level framework for examining EEE offers new detailed insights into the mitigation of regional air pollution.