Spatio-temporal evolution characteristics and driving mechanisms of Ecologic-al-Economic-Social system coupling coordination in the Bohai Rim Area
Accelerating the transformation of the Bohai Rim Area into a true growth pole in northern China had profound significance for building a new era of regional development pattern,based on this,this paper sys-tematically analyzed the spatiotemporal evolution characteristics and driving mechanisms of the Ecological-Economic-Social(EES)system coupling coordination in the Bohai Rim Area from 2001 to 2020.The results indicate that:1)The overall development of the coupling degree of the EES system was better than that of co-ordination,and the absolute and relative differences showed a slight upward trend;in terms of space,there was an evolutionary pattern of"agglomeration+differentiation",forming three relatively high value areas:the mid-southern Liaoning urban agglomeration,the Beijing-Tianjin-Tangshan district,and the Shandong coastal urban agglomeration,and the coupling coordination spatial correspondence was obvious.2)The coupling and co-ordination spatial agglomeration characteristics of the EES system were obvious,with a circular distribution of hot and cold spots from coastal to inland areas;the scale pattern showed inter provincial differences>intra pro-vincial differences>interval differences.3)The coupling and coordination spatial differentiation characteristics of the EES system were obvious,showing core edge characteristics,and the central city of the urban agglomer-ation was the regional growth pole;featuring functionalization,comprehensive functional cities were superior to resource-based cities;It had a hierarchical characteristic and was positively correlated with the administrat-ive level of the city;coastal cities develop better than inland cities.4)The coupling and coordinated spatiotem-poral evolution of the EES system was driven by various factors such as natural geographical location,subsys-tem interaction,spatial proximity effect,strategy and policy,and related factors;the direction and region of the driving factors of the two were basically consistent.
Ecological-Economic-Social systemregional growth polecoupling and coordinated develop-mentBohai Rim Area