Research On Spatial-temporal Synergy And Synergetic Emission Reduction Of Embodied Carbon And Air Pollutants

Climate change has become an important factor restricting global sustainable development.Carbon emissions from human activities are the main cause of global warming,while air pollution caused by human activities in some areas has already brought serious harm to human health.The homology of carbon and air pollutants determines that the synergistic reduction of carbon and air pollutants is an important measure to deal with climate change and prevent air pollution.With the intensification of cross-regional separation of production and consumption,the embodied carbon and air pollutant emissions generated by regional trade have led to the transfer of environmental costs,and promoting the synergistic reduction emissions of embodied carbon and air pollutants is conducive to achieving environmental equity.However,the growth drivers of embodied carbon and air pollutant emissions are different,and there are differences in the transfer paths between regions.Therefore,it is necessary to carry out synergistic control of embodied carbon and air pollutant emissions to promote the realization of carbon peaking and carbon neutrality targets and the construction of a beautiful China.At present,the research on the synergistic emission reduction of carbon and air pollutants is mostly based on the perspective of production emissions,and the research on the synergistic emission reduction of carbon and air pollutants based on the perspective of embodied emissions is relatively insufficient,and there is a lack of synergistic analysis of embodied carbon and air pollutant emissions.The research on the growth drivers of embodied carbon emissions or air pollutant emissions,there is a lack of in-depth research on the synergistic reduction of embodied carbon and air pollutants.The research on embodied carbon emissions or air pollutant emissions that focuses on spatial transfer,while the research on synergistic emission reduction based on spatial transfer is relatively insufficient.Therefore,based on the research status and theoretical analysis of synergistic emission reduction,this dissertation analyzes the spatial-temporal pattern and synergy of embodied carbon and air pollutant emissions,conducts an in-depth study on the synergistic emission reduction of embodied carbon and air pollutants from two aspects:growth drivers and spatial transfer.The main research contents and innovations of this dissertation are as follows:(1)Theoretical analysis of synergistic emission reduction of embodied carbon and air pollutants.On the basis of defining the concepts of embodied carbon and atmospheric pollutant emissions,the synergistic relationship between embodied carbon and air pollutant emissions is identified,and a theoretical analysis framework for the synergistic reduction emission of embodied carbon and air pollutant is constructed.The overall synergy between embodied carbon and air pollutant emissions is theoretically analyzed,and the synergy of growth drivers and spatial transfer between embodied carbon and air pollutant emissions are theoretically analyzed from a dynamic perspective.(2)Empirical Analysis on the spatial-temporal pattern and synergy of embodied carbon and air pollutant emissions.The spatio-temporal pattern of embodied carbon and air pollutant emissions in China is analyzed,the synergy between embodied carbon and air pollutant emissions is measured,and the key provinces for synergistic emission reduction are identified.The results show that the synergy degree of carbon emissions and air pollutant emissions embodied in domestic demand is higher than that of carbon and air pollutant emissions embodied in export,and the provinces with high-intensity synergistic control of carbon emissions and air pollutant emissions embodied in domestic demand are concentrated in coastal areas and resource-rich areas,while the provinces with highintensity synergistic control of carbon and air pollutant emissions embodied in export are concentrated in coastal areas.(3)Empirical study on synergistic emission reduction of embodied carbon and air pollutants based on growth drivers.This dissertation quantifies the contribution of the growth drivers of embodied carbon and air pollutant emissions,analyzes the synergy of the growth drivers,and reveals the synergistic emission reduction differences of the growth drivers.It is found that the emission intensity effect,technology effect and scale effect are the main driving forces for the growth of implied carbon and air pollutant emissions.The emission intensity effect does not have a synergistic emission reduction effect on most provinces,and the emission intensity effect is more sensitive to changes in carbon emissions embodied in domestic demand and export for most provinces.The technology effect has a synergistic emission reduction effect on most provinces,and technical effects are more sensitive to changes in pollutant emissions embodied in domestic demand,and more sensitive to changes in carbon emissions in export.Scale effects do not have a synergistic emission reduction effect on most provinces,and scale effects are more sensitive to changes in carbon emissions embodied in domestic demand in most provinces.(4)Empirical study on synergistic emission reduction of embodied carbon and air pollutants based on spatial transfer.This dissertation analyzes the spatial transfer pattern of embodied carbon and air pollutant emissions,studies the synergy of spatial transfer,and reveals the synergistic emission reduction differences of spatial transfer.It is found that the synergistic emission reduction of embodied carbon and air pollutants driven by domestic demand and export has significant clustering characteristics,and the synergistic control of embodied carbon and air pollutant spatial transfer has significant differences.The spatial transfer of carbon and air pollutants embodied in domestic demand in coastal provinces and southern provinces presents the characteristics of high-intensity synergistic control,and the spatial transfer of carbon and air pollutants embodied in export in coastal provinces presents the characteristics of high-intensity synergistic control,and highintensity synergistic control provinces are further clustered to a few coastal provinces.The main contributions of this dissertation are as follows.The dissertation proposes a theoretical analysis framework for the temporal and spatial synergy and synergistic emission reduction of embodied carbon and air pollutants,and constructs a synergy measurement index for embodied carbon and air pollutant emissions.This dissertation establishes a synergistic emission reduction model of growth drivers of embodied carbon and air pollutants,and reveals the complex driving forces for the synergistic emission reduction of embodied carbon and air pollutant emission changes.The dissertation constructs the synergistic emission reduction model of the spatial transfer of embodied carbon and air pollutants,and improves the difference study of the synergistic emission reduction between embodied carbon and air pollutant spatial transfer.However,there are still many problems to be explored in the synergistic reduction of embodied carbon and air pollutants.How to incorporate economic development and energy constraints into the synergistic emission reduction of embodied carbon and air pollutants,study the impact of other growth drivers on the synergistic emission reduction of embodied carbon and air pollutants,and build an evaluation index system for regional synergistic emission reduction,and better promote regional fair and reasonable synergistic emission reduction are the next issues that need to be studied.