[Spatiotemporal Evolution Characteristics of Collaborative Development of Carbon Reduction， Pollution Reduction，...

The collaborative governance of carbon reduction， pollution reduction， green expansion， and economic growth in Shaanxi province is the key to promoting ecological protection and high-quality development in the Yellow River Basin. Based on the selection of basic variables in Shaanxi province from 2011 to 2022， the spatiotemporal evolution characteristics of each subsystem were analyzed. The VAR model was applied to characterize the mutual feedback between any two subsystems. The coupling coordination model and Dagum Gini coefficient were used to evaluate the overall level and spatial differences of synergy of carbon reduction， pollution reduction， green expansion， and economic growth in Shaanxi province. The results indicated that： ① The subsystems indices for carbon reduction， pollution reduction， green expansion， and economic growth trended to go upward， and there were differences in the level and temporal evolution among 10 cities. ② The bidirectional feedback between each subsystem was more significant， but interaction orientation and strength were different. ③ The overall synergy level of carbon reduction， pollution reduction， green expansion， and economic growth gradually entered a stage of high-quality coordination. Regional differences remain the main factor for the coordinated balance， and the spatial heterogeneity within and between the Guanzhong， Shaanbei， and Shaannan regions should also be taken seriously. The research results provide theoretical reference for high-quality development in Shaanxi province.