Xie Fangming, Li Yiwen, Zhang Bing
Business School, Hohai University, Nanjing, 211100, China.
Yangtze Institute for Conservation and Development, Nanjing, 211100, China.
Environ Sci Pollut Res Int. 2022 Sep;29(43):64704-64720. doi: 10.1007/s11356-022-20310-1. Epub 2022 Apr 27.
The Yangtze River Economic Belt's industrial layout is characterized by industrial agglomeration. However, industrial agglomeration, while promoting economic development, has an uncertain impact on the ecological environment. This research studies the threshold impacts of pollution-intensive industrial agglomeration and green-based industrial agglomeration on the carbon productivity of the Yangtze River Economic Belt through the panel threshold regression models to find the "optimal industrial agglomeration scale." The results of the "optimal industrial agglomeration scale" show that under the existing economic conditions, only if pollution-intensive industrial agglomeration is controlled within a reasonable range can it contribute to carbon productivity. Green-based industries can only enhance carbon productivity when the scale of agglomeration reaches a certain value. In addition, this paper also points out that along the Yangtze River Economic Belt, regions with high agglomeration of green industries should consider investing more technological resources in emerging technologies that use clean energy as a production condition. In contrast, regions with high agglomeration of pollution-intensive industries should focus on improving existing technologies in which traditional energy sources are used as production conditions to increased carbon productivity.
长江经济带的产业布局以产业集聚为特征。然而，产业集聚在促进经济发展的同时，对生态环境的影响具有不确定性。本研究通过面板门槛回归模型，研究污染密集型产业集聚和绿色产业集聚对长江经济带碳生产率的门槛效应，以寻找“最优产业集聚规模”。“最优产业集聚规模”结果表明，在现有经济条件下，只有将污染密集型产业集聚控制在合理范围内，才能对碳生产率产生促进作用。绿色产业只有在集聚规模达到一定值时，才能提高碳生产率。此外，本文还指出，沿长江经济带，绿色产业集聚度高的地区应考虑在以清洁能源为生产条件的新兴技术上投入更多技术资源。相比之下，污染密集型产业集聚度高的地区应专注于改进以传统能源为生产条件的现有技术，以提高碳生产率。
