| China’s economy has entered a new stage of normal,industrial agglomeration energy saving and ecological protection are the goals of China’s high-quality economic development,while abandoning the development method at the expense of the environment,we must also weigh the internal mechanism between economic development and the ecological environment.Whether it is the implementation of economic policies and economic restructuring,or the improvement of the quality of the ecological environment and the improvement of the people’s living standards,it is the adjustment of the economy and environment to actively adapt to the development of the "new normal."Since the 19th national congress of the communist party of China(CPC),the Chinese government has put forward new directions and requirements for China’s development,strengthening the construction of ecological civilization and implementing the concept of green development to promote high-quality economic development.Aiming at difficult problems such as air pollution,binding laws,regulations,policies and assessment indicators have been proposed.This article firstly analyzes and sorts out the literature research on industrial agglomeration and haze pollution,and explains the new economic geography theory,sustainable development theory and external public goods theory.the output density function specification used to deduce the relationship between industrial agglomeration and haze pollution.Secondly,it considers the spatial spillover effect of industry and haze pollution,using the provincial PM2.5 data of China from 2005 to 2017,adopting a spatial measurement model to empirically analyze the relationship between industrial agglomeration and haze pollution,the inverse distance weight matrix with different thresholds was used to verify the mechanism of industrial agglomeration on the haze pollution of local and neighboring areas.The result shows that there is a significant inverted "N" curve relationship between industrial agglomeration and pm2.5 emissions.When industrial agglomeration is at the first inflection point of the inverted "N" curve,the industrial agglomeration will inhibit the haze pollution;When the level of industrial agglomeration is between the first and second inflection points of the inverted "N"curve,it has a significant promoting effect on pm2.5 emissions.However,after industrial agglomeration reached the second inflection point of the inverted "N" curve,industrial agglomeration began to suppress the emission of pm2.5.Haze pollution has a spatial spillover effect of significant distance criticality.When the threshold distance is less than 300 km,there is a significant positive spillover effect;when the threshold distance is exceeded,haze pollution has a significant negative spillover effect,and the greater the distance,the more obvious the negative effect.Taking the proportion of the output value of heavily polluted industries as the explained variable it is found that the relationship between industrial agglomeration and the output value share of heavily polluted industries is an inverted "U" curve,which indicates that with the expansion of the scale of agglomeration,the share of output value of heavily polluting industries accounts for a relatively high.When the industrial agglomeration develops to a certain stage,the output share of local heavy pollution industries starts to decline,and the surrounding areas begin to undertake the heavy pollution industries.The research enlightenments are:giving full play to the important role of the government in the rational layout of industrial agglomeration and the prevention and control of haze,strengthening regional joint prevention and joint governance,and improving pollution control mechanisms.Actively guide enterprises to increase investment in innovation,encourage technological innovation and technology introduction,and encourage enterprises to develop and use clean energy.Accelerate the elimination and transformation and upgrade of outdated production capacity,optimize the industrial structure,and promote the production and production of high-end products.Reform the foreign investment management system and optimize the use structure of foreign investment,appropriately and flexibly citing foreign investment technology.Raise residents’ awareness of environmental protection through publicity,education and training. |
