长江经济带城市大气污染排放效率与产业结构变迁

Urban air pollution emission efficiency and the change of industrial structures in the Yangtze River economic belt

基于非期望产出的超效率SBM-DEA模型,评价了2007—2017年长江经济带108个城市的大气污染排放效率。通过耦合协调度模型和Tobit模型,验证了该区域产业结构变迁与大气污染排放效率的影响关系,结果发现:(1)仅有6个城市的大气污染排放效率均值达效率前沿面,大气污染排放效率均值从高到低依次为下游、中游和上游地区;(2)中上游地区城市的大气污染排放效率和产业结构合理化、产业结构高级化耦合协调度显著低于下游城市;(3)产业结构合理化、产业结构高级化有利于提高长江经济带各城市大气污染排放效率。应针对未实现大气污染排放效率和产业结构耦合协调发展的城市,重点制定产业结构发展和环境保护的一体化发展策略。

With the super SBM-Undesirable model,this study evaluates the air pollution emission efficiency in 108 cities ofthe Yangtze River economic belt from 2007 to 2017.The relationship between the industrial structure evolution and the urbanair pollution emission efficiency is confirmed by using the coupling coordination degree model and the Tobit model.Thefindings are as follows:(1)Only 6 cities reach the efficiency frontier of the average air pollution emission efficiencies.Theregions in terms of the average air pollution emission efficiency from high to low are in this order:the downstream region,themidstream region and the upstream region;(2)The coupling coordination of the air pollution emission efficiency and theindustrial structure rationalization,the air pollution emission efficiency and the industrial structure upgrading in the midstreamand upstream cities are significantly lower than those of the downstream cities;(3)The industrial structure rationalization and theindustrial structure upgrading are conducive to the improvement of the air pollution emission efficiency in cities of the YangtzeRiver economic belt.For the cities that have not achieved the coupling coordination of the air pollution emission efficiency andthe industrial structure,the integrated development strategy of the industrial structure development and the environmentalprotection should be formulated.