School of Mathematics and Statistics & FJKLMAA, Fujian Normal University, Fuzhou, China.
Environ Sci Pollut Res Int. 2023 Mar;30(11):29243-29257. doi: 10.1007/s11356-022-24113-2. Epub 2022 Nov 21.
The purpose of this paper is to quantify the level of new-type urbanization and unravel the spatial and nonlinear effects of new-type urbanization and technological innovation on industrial carbon emissions. Although the impact of traditional urbanization levels on carbon emissions has been widely studied, there is still a huge room for optimization, and the impact of new-type urbanization on carbon emissions has not yet been clarified. Selecting 37 cities in the Yangtze River Delta as a research sample, this paper measures the new-type urbanization based on an evaluation system we build. Consequently, we assess the spatial and nonlinear effects of new-type urbanization and technological innovation on carbon emissions by the spatial Durbin model and non-parameter addictive model, respectively. The results indicate that the new-type urbanization and low-carbon city pilot policy have significant spatial spillover effects on reducing carbon dioxide emissions, while the economic growth plays a positive role in increasing carbon emission. As for nonlinear effects, there is a significant inverted "N"-shaped relationship between the level of new-type urbanization and carbon dioxide emissions, while the nexus between technological innovation and carbon emissions is an inverted "U"-shaped relationship. This paper provides a new perspective for confirming the mechanism of the new-type urbanization on carbon emissions. Meanwhile, these findings are of significance for the relevant authorities in China to develop appropriate policy in carbon dioxide emission reduction.
本文旨在量化新型城镇化水平，并揭示新型城镇化和技术创新对工业碳排放的空间和非线性影响。虽然传统城镇化水平对碳排放的影响已经得到了广泛研究，但仍有很大的优化空间，且新型城镇化对碳排放的影响尚未得到明确。选取长三角地区的 37 个城市作为研究样本，本文基于我们构建的评价体系来衡量新型城镇化水平。然后，我们分别通过空间杜宾模型和非参数可加模型评估了新型城镇化和技术创新对碳排放的空间和非线性影响。结果表明，新型城镇化和低碳城市试点政策对降低二氧化碳排放具有显著的空间溢出效应，而经济增长对增加碳排放则起到了积极作用。至于非线性效应，新型城镇化水平与二氧化碳排放之间存在显著的倒“N”型关系，而技术创新与碳排放之间的关系则呈倒“U”型关系。本文为确定新型城镇化对碳排放的作用机制提供了新的视角。同时，这些研究结果对中国相关部门制定二氧化碳减排政策具有重要意义。
