School of Economics and Management, Wuhan University, Wuhan 430072, China.
Anhui Institute of Industry and Information Technology, Hefei 230001, China.
Int J Environ Res Public Health. 2021 Feb 7;18(4):1566. doi: 10.3390/ijerph18041566.
We analyze the mechanism for industrial co-agglomeration in Chinese 283 cities to affect haze pollution from 2003 to 2016 and examine the possible mediating effects of urbanization and energy structure between haze pollution and industrial co-agglomeration, finally obtaining the following results. First, industrial co-agglomeration and haze pollution across China, including central and eastern regions keep a typical inverted U-shaped curve relationship. That is, industrial co-agglomeration first promotes haze pollution and then restrains it. However, the impact of industrial co-agglomeration on haze pollution in western China is still on the left side of the inverted U-shaped curve, reflecting a promotion effect. Second, industrial co-agglomeration has a significant spatial spillover effect on haze pollution. Additionally, industrial co-agglomeration can promote haze pollution in local regions but inhibit it in surrounding regions in both the short and long run. In contrast, when the industrial co-agglomeration index exceeds the inflection point (3.6531), it benefits the reduction of haze pollution in local regions, while not being conducive to it in the neighboring regions. Third, industrial co-agglomeration can affect haze pollution through urbanization and energy structure, that is, urbanization and energy structure play an intermediary role between them.
我们分析了 2003 年至 2016 年中国 283 个城市产业集聚对雾霾污染的影响机制,并检验了城市化和能源结构在雾霾污染与产业集聚之间可能存在的中介效应,最终得出以下结果。首先,包括中东部地区在内的全国范围内,产业集聚与雾霾污染之间保持着典型的倒 U 型曲线关系。也就是说,产业集聚首先会促进雾霾污染,然后再抑制它。然而,西部地区产业集聚对雾霾污染的影响仍处于倒 U 型曲线的左侧,呈现出促进作用。其次,产业集聚对雾霾污染具有显著的空间溢出效应。此外,无论是短期还是长期,产业集聚都可以促进本地的雾霾污染,但抑制周边地区的雾霾污染。相比之下,当产业集聚指数超过拐点(3.6531)时,有利于降低本地的雾霾污染,而不利于周边地区。第三,产业集聚可以通过城市化和能源结构来影响雾霾污染,也就是说,城市化和能源结构在两者之间起到了中介作用。