Analysis On The Structural Characteristics Of The Implicit Carbon Emission Transfer Network Among Provinces In My Countr

Nowadays,the problems of climate warming,melting glaciers,and rising sea levels are becoming increasingly serious,and it is urgent to actively control the transfer of carbon emissions.China is in a rapid development stage,and carbon emissions are still on the rise.In order to achieve the "dual carbon" goal faster,all provinces in China need to work together to explore a path that balances sustainable economic development and environment-friendly development.However,inter-provincial product trade has separated carbon emissions between production and consumption,and the problem of embodied carbon emission transfer has become increasingly prominent.The transfer of embodied carbon emissions not only increases the carbon emission reduction burden of product production areas and the local environmental burden,but also hinders the division of regional emission reduction responsibilities and reduces the ability of regional coordination to reduce emissions.Therefore,this paper estimates the amount of embodied carbon emission transfer between provinces in China in 2012,2015 and 2017,analyzes the scale and direction of carbon emission transfer between provinces,and uses social network analysis to reveal the structural characteristics and laws of the spatial correlation network of implied carbon emission transfer between regions,so as to provide a realistic basis and reference for China to reasonably share regional responsibilities and formulate emission reduction targets.Firstly,taking 30 inland provinces in China(except Hong Kong,Macao,Taiwan and Tibet)as the research objects,this paper selects multi-regional input-output tables and corresponding energy emission inventories in 2012,2015 and 2017,and calculates the transfer of embodied carbon emissions between provinces in China in 2012,2015 and2017 through multi-regional input-output models and conducts descriptive statistical analysis.The results show that:(1)intermediate use and final use together constitute the total embodied carbon emission transfer,and the proportion of intermediate use is much higher than the proportion of final use,indicating that product processing is the main factor of embodied carbon emission transfer between provinces;(2)From the perspective of the scale of embodied carbon emission transfer,the scale of embodied carbon emissions between provinces first expanded and then decreased,and the overall trend increased,and the intermediate use transfer,final use transfer and total transfer of embodied carbon emissions between provinces had similar distributions;(3)There is a clustering effect on the transfer of embodied carbon emissions between provinces.Southwest,Northwest and Northeast China are the total embodied carbon emission transfer areas,East China is the total embodied carbon transfer area,and North and Central China are the relatively balanced areas of total embodied carbon transfer.Specifically,the net transfer of embodied carbon emissions in Beijing,Hainan,Shanghai and Chongqing is relatively high,and the net transfer of embodied carbon emissions in Jiangsu Province,Shandong Province,Guangdong Province,Hebei Province and Henan Province is relatively high.Secondly,the social network analysis method is used to construct a directed network model of implied carbon emission transfer between provinces,and key node provinces in the network are analyzed through network node centrality.The results show that:(1)The implied carbon emission transfer network shows a trend of dense relationship and diversified direction,most provinces are closer to the network center through key provinces,but Hubei Province and Fujian Province have low connection with the network,and the implied carbon emission transfer network as a whole shows a "core-edge" form.Moreover,the embodied carbon emission transfer network is denser than the embodied carbon emission transfer network,and the provinces are more closely connected;(2)The embodied carbon emission transfer network is in dynamic change,the stability needs to be improved,and the key node provinces have diversified advantageous sources,and the key nodes with advantages play a pivotal role in the embodied carbon emission transfer network,and when their demand for products changes,it will affect the embodied carbon emission transfer of the entire network to a greater extent.By comparing the proximity of centrality and intermediary centrality in three years,it can be seen that the "intermediary" role of the embodied carbon emission transfer network is strengthened,and the characteristics of the transfer ladder are weakened.Based on the above results,this paper puts forward the following suggestions:(1)Promote coordinated emission reduction and strengthen regional equality.Strengthen regional management of emission rights,restrict the circulation of high-carbon products between regions,and raise the threshold for the circulation of high-carbon products between provinces,thereby strengthening carbon equality between provinces;(2)Promote low-carbon production and improve consumption structure.Strengthen research and development of low-carbon technologies,develop clean energy,and promote the green development of industries.Optimize the energy structure and improve energy efficiency.At the same time,it strengthens consumers’ low-carbon awareness and raises their environmental concerns;(3)Optimize the industrial structure and develop lowcarbon industries.Adopt differentiated trade emission reduction measures for specific industries,adjust product structure,and accelerate industrial upgrading and transformation;(4)Pay attention to the carbon emission network and accurately reduce emissions.Focus on provinces with high embodied carbon emission transfer and key node provinces that play a pivotal role in the embodied carbon emission transfer network,Beijing-Tianjin and eastern coastal areas need to develop high-precision industries and service industries and other "high added value,low energy consumption,low emission" industries to reduce carbon emissions;While giving full play to energy advantages and ensuring national energy security,the central and western regions will develop forwardlooking industries to gradually reduce carbon emissions;(5)Encourage technology research and development and provide policy support.On the one hand,it is necessary to increase the use of clean energy,on the other hand,it is necessary to vigorously develop clean mining technologies,decarbonization technologies,and carbon dioxide capture and storage technologies.At the same time,the government should provide certain financial support to enterprises that actively carry out technological improvement and innovation,and provide certain preferential treatment in taxation.