Analysis of carbon emission changes in China's transportation industry based on LMDI decomposition method

In order to provide references for the energy-saving and emission-reduction policies formulation in China's transportation industry, based on Logarithmic Mean Divisia Index (LMDI) decomposition method, transportation industry in China was divided into highway, waterway, railway and civil aviation to quantitatively analyze the impact factors of carbon emission change in transportation industry during 2005 to 2011. The results show that the increase of per capita GDP appears the main promoting factor to carbon emission increment in transportation industry. The dropping of energy intensity of transportation and transportation intensity, which indicate energy using efficiency and transportation efficiency respectively, presents the carbon emission reduction effect. In addition, highway transportation has a significant effect on carbon emission change in transportation industry, which is not only reflected by the driving force of highway transportation's dominance in transportation industry, but also reflected by the remarkable inhibiting effect of the energy intensity decrement in highway transportation. In the future, the curbing effects of energy intensity's decrement and energy consumption structure cleaning in highway transportation will become more and more significant. ©, 2015, Xi'an Highway University. All right reserved.