Green Development
LI Shuhao, ZHANG Yuhang, YANG Youbao, FU Tianyu
Based on the analysis of the coupling mechanism of scientific and technological innovation,tourism development,and economic resilience,this study utilized the evaluation based on dictance from average solution (EDAS)model to assess the performance levels of 16 prefecture-level cities in Shandong province from 2012 to 2022 in the aforementioned three aspects.Subsequently,the coupling coordination degree model was employed to measure the synergy index among them(abbreviated as the"STE"synergy index below),and analyze the spatiotemporal characteristics of the synergy relationship and the relative lag subsystem for each city.The findings are as follows.(1)From a temporal evolution perspective,the STE synergy index of Shandong province maintained stable growth before 2019,achieving an overall transition from near dislocation to primary coordination.Despite fluctuations in 2019,the overall STE synergy index managed to sustain its primary coordination level.(2)From a spatial distribution perspective,significant inter-city variations exist in the STE synergy index across Shandong province, delineating a"dual-core,multi-center"spatial pattern with Qingdao and Jinan at its core.The STE synergy index shows a higher overall level in the Jiaodong Economic Circle,a lower overall level in the Lunan Economic Circle, and Jinan stands out as dominant in the Provincial Capital Economic Circle.(3)Before 2019,the technology innovation subsystem lagged behind in the STE synergy index across most prefecture-level cities in Shandong province. After 2019,tourism development became the predominant lagging subsystem in the STE synergy index for most prefecture-level cities.