Analysis Of Regional Decoupling Relationship Between Economic Growth And CO₂ Emission And Its Driving Factors In China

The CO2 emission reduction is now wide concerned due to the global climate change,and China is in the grim situation of CO2 emission reduction.The relationship between economic growth and CO2 emission is an important factor of low-carbon economic construction,and “decoupling” is the core.China covers a large territory,thus the resource endowments,development patterns and development phases are quite different in each region of this country.It is necessary to study the current decoupling relationship between regional economic growth and CO2 emission and its driving factors in order to effectuate the decoupling of CO2 emission from economic growth.And meanwhile,the economic growth in every region is not absolutely independent and the inter-regional economic activities affect in a way.The inter-regional consumption,investment and export promote economic development and relate CO2 emission simultaneously,studying the decoupling states of this part of CO2 emission can confirm the role that consumption,investment and export in each region plays in the reduction of CO2 emission reduction.The relationship between economic growth and energy-related CO2 emission and its driving factors in the whole country and eight economic zones in 1995~2013 are studied based on the Tapio decoupling model in this paper.The results show that relationship between economic growth and CO2 emission are mostly in weak decoupling states in both the whole country and every region.The variation trend of decoupling states in each region varied in some way,and Beijing-Tianjin economic zone holds the best decoupling states and North-west economic zone holds the worst one.Economic factor and energy intensity factor are the main factors preventing and promoting the CO2 emission from decoupling,respectively.The effects of industrial structural factor are different in each economic zone,and only in Beijing-Tianjin economic zone and Eastern coastal economic zone does this factor promote the decoupling of CO2 emission.The effects of CO2 emission coefficient factor are unstable in each economic zoneWhat's more,the inter-regional input-output model and Tapio decoupling model are combined in this paper to analyze the relationship between economic growth and CO2 emissions related from inter-regional consumption,investment and export.The results show that the decoupling states of consumption and investment related CO2 emission are mainly in weak decoupling states and decoupling situation in 2007~2010 gets better than in 2002~2007 and extended decoupling states agminate in each study period.The decoupling states of CO2 emission related from export in each region also gets better on the whole in 2007~2010 than in 2002~2007.According to the study,it comes to the conclusion that the decoupling states in China and each region are different and decoupling driving factors show different effects in each region,it needs a specific research according to the fact in each region when making polices.The CO2 emission decoupling states related from consumption,investment and export in each regions varies a lot,it can promote the reduction of CO2 emission to choose suitable cooperative regions and industries.