鑽石舞台

In response to the 14th National Five-year Plan of China and to better explore new strategies for promoting regional coordinated green development, the eco-efficiency values of Chengdu-Chongqing Economic Circle and the corresponding temporal analysis from 2004 to 2018 were assessed in this paper using the super-SBM model and Markov chain. Meanwhile, the spatial analysis of eco-efficiency was conducted by a geographically weighted regression model. Although eco-efficiency has risen at an increasing rate, the economic development of Chengdu-Chongqing Economic Circle was still ecologically ineffective. This means there is an urgent need to improve the efficiency of resource utilization and promote technological innovation. During the study period, the evolution of the eco-efficiency presented as a 「π」 shape, and was accompanied by the phenomenon of 「club convergence」. There was also a strong tendency for eco-efficiency to maintain the original status quo, which indicates that it lacked sufficient momentum for improvement, so it was difficult to achieve a leapfrog transfer. Spatially, the eco-efficiency was distributed from northwest to southeast in a high-low-high manner. The spatial-temporal differences of eco-efficiency narrowed but the effect of agglomeration was relatively weak and there was a polarization trend. Further investigation suggests that the differences in the development level of urbanization, opening, technology, environmental regulation and advancement of industrial structure led to the spatial differences of eco-efficiency. Each city in the Economic Circle should make every effort to improve eco-efficiency accordingly, and thus to promote the green development of the whole region, so as to lay a foundation for driving the green and coordinated development of the central and western regions.

為了響應國家十四五規劃，更好地探索促進區域協調綠色發展的新戰略，本文採用super-SBM模型和馬爾可夫鏈對成渝經濟圈2004–2018年的生態效率值進行了測算與時序分析，同時，利用地理加權回歸模型對生態效率進行了空間分析。雖然成渝經濟圈生態效率在研究期間有所提高，但其經濟發展仍然是生態無效的，這意味着成渝迫切需要提高資源利用效率，促進技術創新。在研究期間，成渝經濟圈的生態效率的演變呈現為「π」字形狀，並伴隨着「俱樂部趨同」的現象，此現象表明生態效率有保持原狀的強烈趨勢，說明生態效率缺乏足夠的改善動力，因此很難實現跨越式轉移。從空間上看，生態效率從西北向東南呈高–低–高效率分布，生態效率的時空差異縮小，但集聚效應相對較弱且呈現兩極分化趨勢。進一步的研究表明，城鎮化發展水平、對外開放水平、技術水平、環境規制和產業結構高級化是導致生態效率空間差異的原因。成渝經濟圈應針對各自弱點相應採取改善措施提高生態效率，從而促進整個區域的綠色發展。