Study on the Coupling Coordination Evaluation and Dynamic Effects of Economy Transportation Environment in the Urban Agglomeration of the Middle Reaches of the Yangtze River
Based on the panel data of 31 cities in the middle reaches of the Yangtze River from 2009 to 2019,this paper constructed a coupled coordination model of economy,transportation and environment to measure the interaction between the systems.The coupled coordination model and panel vector autoregressive model(PVAR)were used respectively to study the evaluation and dynamic effects of the coupled coordination of economy,transportation and environment in the middle reaches of the Yangtze River urban agglomeration.The research conclusions are as follows:on the whole,the coordinated development level of cities in the middle reaches of the Yangtze River urban agglomeration is gradually enhanced,and the interaction between each subsystem is gradually strengthened,but it still needs some time to reach the stage of barely coordinated development.From the perspective of dynamic effect,the dynamic influence path of traffic on economic development shows a continuous rising trend.Ecological environment has positive influence on economic development,but the influence coefficient is low.The ecological environment has an obvious effect on the improvement of traffic development,but it is not sustainable.As time goes by,the impact effect of ecological environment tends to be flat.
Urban agglomeration in the middle reaches of the Yangtze RiverEconomic developmentTransportationEnvironmentCoupling coordinationPVAR