Decoupling Analysis of New Urbanization and Air Pollution in the Yangtze River Economic Belt
The rapid development of cities has led to a concentration of pollutants in these cities.To reconcile economic development and environmental pollution,China has developed and implemented a new urbanization strategy.However,research on the specific relationship between new urbanization and air pollution is insufficient,and it is still unclear whether air pollution has decoupled from new urbanization.Therefore,based on the panel data of 108 cities in the Yangtze River Economic Belt(YREB)from 2009 to 2021,this paper constructs a new urbanization evaluation index system with five dimensions:demographic,economic,spatial,social and ecological.The decoupling relationship and regional heterogeneity between new urbanization and PM2.5 concentration were explored by using the Tapio decoupling model and catch-up decoupling model.The results show that:(1)PM2.5 concentrations in the Yangtze River Economic Zone have continued to decrease since 2013.(2)The driving force of new urbanization mainly comes from economic urbanization and social urbanization.(3)The decoupling between PM2.5 concentrations and new urbanization has been maintained for a long time,but there are alternating phenomena of decoupling and negative decoupling on the short-term scale.(4)The catching-up effect of most catching-up cities on model cities is not good,and the imbalance between regions will continue for a long time.
NETL
NSTL
万方数据
