Research On The Estimation Of Embodied Carbon Emissions And Transfer Of China’s Inter-provincial Trade From The Perspective Perspective Of Added Value

In recent years,China has experienced rapid economic growth,but at the same time,CO2 emissions have surged and the government is under tremendous pressure to reduce emissions.China has a vast territory and a large market space,and inter-regional trade is booming.Today,regional integration has become an important strategy in China,and trade among provinces has become more frequent,thus,the emission and flow of trade implied carbon has gradually increased,and the trade implied carbon is deeply hidden behind the trade of products and services,and is transferred to other provinces along with the flow of products and services,which is difficult to be measured.In addition,the transfer of implied carbon from inter-provincial trade increases the obstacle to clarifying regional emission reduction responsibilities and promoting the improvement of emission reduction efficiency,which makes it difficult to achieve China’s carbon reduction targets.The study of the implied carbon emissions and transfer of interprovincial trade can help China achieve its carbon emission reduction targets,which is of great significance for the government to reasonably allocate carbon reduction responsibilities.Firstly,this paper firstly measures the direct carbon dioxide emission coefficients of each province by industry based on the data information provided by the 2018 Energy Statistics Yearbook,combined with the 2017 China interregional input-output table,based on which,this paper adopts the expanded value-added trade accounting method to analyze the implied carbon emission and transfer characteristics of interprovincial trade.Then,the value added demand dependence index is introduced to explore the dependence of each province on upstream value added suppliers when they are downstream producers,and the value added supply distribution index is used to explore the value added supply linkage with foreign provinces when each province participates in the division of labor in the value chain,and the reasons for the implied carbon transfer in inter-provincial trade are interpreted based on the index results.Finally,the results are combined to make relevant suggestions for energy conservation and emission reduction in China.The main conclusions of this paper are as follows:(1)the direct carbon dioxide emission coefficients of all provinces in China are generally low in the east and high in the west,and it is basically negatively correlated with the economic development level of each province in the east and west of China;(2)in terms of the implied carbon dioxide emissions of trade caused by the transfer of value added in each province in China,the implied carbon emissions caused by domestic inter-provincial trade in each province in the inland region are higher,and the implied carbon emissions caused by foreign trade in each province in the coastal region are emissions from export trade are higher,and even the implied carbon emissions from export trade to foreign countries in Guangdong Province are higher than the implied carbon emissions from domestic interprovincial trade;(3)As for the net inter-provincial transfer of trade implied carbon caused by the transfer of value added by each province in China,economically developed provinces show a net carbon inflow,and more trade implied carbon emissions flow to other provinces,while economic provinces such as the northwest region The less developed provinces show net carbon outflow and bear a large amount of trade implied carbon emissions from other provinces,and overall,there is a trend of implied carbon emissions in value-added trade flowing from inland areas to coastal areas.(4)In terms of the causes of trade implied carbon transfer among provinces in China,the size of direct CO2 emission factor has a direct impact on trade implied carbon emissions and transfer volume.In addition,provinces with strong dependence on value added demand from foreign provinces show a net carbon inflow,and provinces with larger supply of value added demand from foreign provinces mainly show a net carbon outflow.