山东省交通运输-区域经济-生态环境耦合协调时空演变研究

Spatio-temporal Evolution Track of Coupling Coordination of Transportation-Regional Economy-Ecological Environment in Shandong Provinc

为了研究山东省交通运输、区域经济和生态环境3个子系统发展水平及其耦合协调发展状态时空分异特征,基于2011—2020年山东省交通运输、区域经济和生态环境的面板数据,运用熵值法、耦合协调度模型和核密度估计方法,研究山东省交通运输-区域经济-生态环境的耦合协调度的时空分异特征及其演化规律。结果表明:山东省交通运输、区域经济、生态环境系统的耦合协调度处于稳步上升趋势,生态环境的综合评价水平始终领先于交通运输综合发展水平和区域经济综合发展水平;全省各地市的交通运输、区域经济以及生态环境发展不均衡,在空间上形成双核心和“中心-外围”空间分布特征,青岛、济南在交通运输-区域经济-生态环境系统的耦合协调度上一直保持高位,其他城市耦合协调度发展水平呈现逐渐上升的趋势;全省耦合协调度高低分布格局较为稳定,虽然各地市发展存在分级,但地区发展差异有减小的趋势。

To study the development level of the three sub-systems of transportation,regional economy and ecological environment and the characteristics of spatio-temporal differentiation of their coupling coordination states in Shandong Province,based on the panel data of transportation,regional economy and ecological environment in Shandong Province from 2011 to 2020,the spatio-temporal differentiation characteristics and evolution rules of the degree of coupling coordination among transportation,regional economy and ecological environment in Shandong Province were studied by using the entropy weight method,coupling coordination degree model and nuclear density estimation.The results show that the coupling coordination degree among transportation,regional economy and ecological environment system in Shandong Province shows an increasing trend in the study period,the comprehensive evaluation level of ecological environment is better than that of transportation and regional economy in the past.The spatial distribution features of dual core and“center-periphery”are formed in space,and Qingdao,Jinan City always maintain a high level of coupling coordination degree of complex transport-regional economy-ecological environment system,while the development level of coupling coordination degree of the other cities gradually increases.The distribution pattern of high and low coupling coordination of Shandong Province is relatively stable,although the development of different cities is graded,the regional development difference has a decreasing trend.