[Spatiotemporal Evolution Pattern and Influencing Factors of Coupling Coordination Effect Between the Development of New Quality Productivity and Reduction of Pollution and Carbon Emissions， Taking the Yangtze River Economic Belt as an Example].

The coordinated advancement of pollution reduction， carbon reduction， and the development of new-quality productive forces is significant for addressing ecological and environmental issues and promoting high-quality economic development in the Yangtze Economic Belt. This study employs a revised coupling coordination model， kernel density estimation， Theil index， and spatio-temporal geographically weighted regression models to explore the spatio-temporal evolution patterns and influencing factors of the coupling coordination effects between pollution reduction， carbon reduction， and the development of new-quality productive forces in the provinces and cities of the Yangtze Economic Belt from 2010 to 2022. The results indicate that： （1） The coupling coordination levels of pollution reduction， carbon reduction， and the development of new-quality productive forces in the provinces and cities of the Yangtze Economic Belt showed an upward trend year by year， with the coupling coordination grades gradually evolving from mild disorder and near disorder to primary coordination. The spatial distribution exhibited characteristics of "higher in the north and lower in the south" and an "increasing stepwise gradient from upstream to downstream." （2） The regional differences in coupling coordination levels among the provinces and cities of the Yangtze Economic Belt initially decreased continuously and then fluctuated within a narrow range. Inter-regional differences were the dominant factor of overall differences， while intra-regional differences contributed increasingly. （3） Environmental protection， industrial structure， technological innovation， and economic development primarily had positive impacts on the coupling coordination effects of pollution reduction， carbon reduction， and the development of new-quality productive forces. Energy consumption mainly had a negative impact， and there was significant spatio-temporal heterogeneity in the influence of various factors.