Decoupling Analysis of Economic Growth and Carbon Emissions from the Perspective of City Scale

The cities of China are different in scale, studying the decoupling relationship between economic growth and carbon emissions, and the influencing factors will help to achieve China's "low carbon economy" development strategy. In this paper, the Tapio decoupling model is used to study the decoupling relationship between carbon emissions and economic growth in six different scale cities, including Shanghai, Wuhan, Xianyang, Qinhuangdao, Shizuishan and Jinchang. The conclusions are as follows: the greater the scale of the city, the stronger ability of decoupling; compared with the population, the per capita GDP, the industrial structure has the most positive effect on the decoupling; only the energy intensity has a negative effect, but the effect is greater. Therefore, we should focus on industrial structure optimization and energy intensity reduction.