Duan Xuelin, Li Xi, Tan Wenfang, Xiao Rui
School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, 430079, China.
State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, 430079, China.
Heliyon. 2022 Aug 30;8(9):e10423. doi: 10.1016/j.heliyon.2022.e10423. eCollection 2022 Sep.
Global warming is a serious environmental problem facing the world in the 21st century. Carbon dioxide, an important greenhouse gas, is the driver of global warming. Rapid urbanization has not only improved the quality of life, but has also led to radical increases in carbon emissions. In order to achieve a win-win situation between urbanization and carbon emissions reduction, research on the decoupling relationship between urbanization and carbon emissions has great significance, especially in Africa, where urbanization is advancing rapidly. This study explores the decoupling relationship between different types of urbanization (demographic urbanization, spatial urbanization, economic urbanization, social urbanization) and carbon emissions in Africa. The results show that the decoupling relationship between demographic urbanization and carbon emissions is similar to the decoupling relationship between spatial urbanization and carbon emissions. The decoupling relationship between economic urbanization and carbon emissions is similar to the decoupling relationship between social urbanization and carbon emissions. Only 4 of the 33 African countries studied have achieved the decoupling of four types of urbanization from carbon emissions in the long period (2000-2018). These findings can provide some guidance for the sustainable development of Africa.
全球变暖是21世纪世界面临的一个严重环境问题。二氧化碳作为一种重要的温室气体，是全球变暖的驱动因素。快速城市化不仅提高了生活质量，也导致了碳排放的急剧增加。为了实现城市化与碳排放减少之间的双赢局面，研究城市化与碳排放之间的脱钩关系具有重要意义，特别是在城市化快速推进的非洲。本研究探讨了非洲不同类型城市化（人口城市化、空间城市化、经济城市化、社会城市化）与碳排放之间的脱钩关系。结果表明，人口城市化与碳排放之间的脱钩关系与空间城市化与碳排放之间的脱钩关系相似。经济城市化与碳排放之间的脱钩关系与社会城市化与碳排放之间的脱钩关系相似。在研究的33个非洲国家中，只有4个国家在长期（2000-2018年）实现了四种类型城市化与碳排放的脱钩。这些发现可为非洲的可持续发展提供一些指导。
