The Evolution Of Carbon Emission Transfer Path And Reduction Strategies Among China Industrial Sectors

Greenhouse gas emissions have brought many international social problems,such as rising global temperature,aggravating environmental pollution and frequent extreme weather.China is in a critical period of rapid economic development.At present,carbon emissions rank first in the world and are facing severe pressure of carbon emission reduction.China’s economy is a complex system of interrelated departments.Industrial economic activities contribute a lot of carbon emissions.To achieve the goal of carbon emission reduction at an early date,it is necessary to coordinate the efforts of industrial departments to reduce carbon emissions.Therefore,in-depth analysis of the transfer mechanism of carbon emissions among industrial sectors,and put forward targeted emission reduction strategies have important practical significance for the current work of carbon emission reduction.Based on this,this paper establishes an input-output model of carbon emissions and industrial correlation,analyses the current situation of carbon emissions in China’s industrial sector,and then uses structural path analysis method to construct an analysis framework of carbon emission transmission path,and makes a detailed analysis of the distribution characteristics of carbon emissions in the industrial sector,the key path of carbon emissions and its evolution.The main research results are as follows:(1)China’s carbon emissions showed a trend of rising first and then decreasing from 2005 to 2015,and carbon emissions from coal accounted for a high proportion of carbon emissions.During the study period,the measurement of carbon emissions in the industrial sector based on production and final demand is significantly different,alongwith the separation of product use and final consumption,carbon emissions exist in the sector Transmission and transfer;the carbon emission intensity of most industrial sectors is much higher than the direct carbon emission intensity,and the proportion of carbon emission intensity is increasing;The final demand is different for the carbon emission of the industrial sector.It is estimated that the carbon emissions driven by the captical account for a relatively high proportion.(2)Analysis of the hierarchical distribution characteristics and evolution of carbon emissions in the industrial sector shows that the carbon emissions of the industrial sector are intricately transmitted along the path of the industrial chain,and the carbon emission analysis model of the industrial system is constructed to calculate the electricity,heat production and supply industries,coal mining and The leading level of carbon emissions from energy-based industries such as washing and dressing is at the0 th floor;while the industry-level carbon emissions at the leading level of the construction industry are at the 1st and 2nd levels,during the study period,2010 and2015 The proportion of carbon emissions at the higher levels of the department has increased compared with that of 2005.With the refinement of the industrial division of labor,the economic linkages between departments have become closer and the transfer of carbon emissions has become more complicated.(3)Analysis of the evolution of the key path of carbon emission in the industrial sector: the top 30 key carbon emission pathways with high carbon emissions in the industrial system during the study period,including the captical → construction industry → metal smelting processing / non-metallic mineral products Industry and other related industrial sectors are the core carbon emission transmission routes,and among the key paths listed,the proportion of carbon emissions has increased from40.113% in 2005 to 62.842% in 2015,showing an upward trend.The second largest type of route affecting the carbon emission system in 2005 was: export → metal smelting and rolling processing industry / chemical industry,2010 and 2015 urban residents consumption → electricity,heat production and supply industries and other related industrial sectors became The second largest path type.(4)Based on the evolution analysis of the carbon emission path of the industrial sector,the countermeasures for reducing emissions in the industrial sector are proposed:establishing a reasonable carbon emission responsibility sharing system;through the adjustment of the final demand model,driving the industrial structure transformation and promoting low-carbon development;Formulating different targeted measures based on different characteristics of distribution;putting forward the key points of future carbon emission reduction work,we should focus on key industry chains and promote the optimization and department of industrial chain Synergistic emission reduction.