长江经济带旅游城镇化与生态城镇化耦合协调时空特征及障碍因子OA

Tourism urbanization and ecological urbanization represent important pathways for addressing the dual challenge of environmental protection and economic development and for implementing the strategy of"ecological priority and green development."Revealing the coupling coordination relationship between these two systems provides valuable insights into regional new-type urbanization and ecological environmental governance.Based on the cou-pling coordination degree model and spatial autocorrelation analysis,this study evaluates the levels of tourism urbanization and ecological urbanization in prefecture-level cities within the Yangtze River Economic Belt and analyzes their spatio-temporal characteristics and ma-jor obstacle factors.The results indicate that the levels of both systems show an overall up-ward trend,with intercity disparities gradually narrowing.The index fluctuations are more pronounced in the upper and middle reaches than in the downstream region.The coupling coordination degree exhibits a fluctuating yet increasing trend,with significant spatial differ-entiation and a clear decreasing gradient from downstream to middle and upper reaches.Spa-tial agglomeration of coupling coordination is evident,characterized by a stable high-value cluster in the Yangtze River Delta and a low-value fluctuating cluster centered on Kunming and Guiyang in the upper reaches.The obstacle degree of the tourism urbanization system is higher than that of the ecological urbanization system.Key obstacle factors affecting the co-ordination relationship include the number of A-level scenic spots,total tourism revenue,total tourist arrivals and SO2 emissions per unit GDP.In addition,annual average PM2.5 con-centration,industrial wastewater discharge per unit GDP and carbon emissions per unit GDP are identified as the three fastest-growing obstacle factors.