The Key Factors Influencing the Decline of Carbon Emission Intensity in Low-Carbon Cities and Countermeasure Research—A Case of Fuzhou, Jiangxi

Carbon emission intensity is an important indicator to evaluate the urban development level. Taking Fuzhou, a low-carbon pilot city of China in Jiangxi Province as an example, based on the current levels of energy consumption and carbon emissions, this paper proposes the concept of "the marginal effect of carbon emission intensity" and analyzes the eleven factors influencing the decline of carbon emission intensity in low-carbon cities. Results show that the rise of carbon emissions in industrial sectors are the main reason for the abnormal increase in the carbon emission amount and intensity of Fuzhou, and that the coal consumption level, GDP and electricity sent out to other cities are the key factors influencing the decline of carbon emission intensity. Based on the analysis, countermeasures and suggestions are put forward as a reference for the municipal government in the construction of low-carbon cities.