A Quantitative Research on Carbon Emissions in the Residential Area of China Based on LCP Theory

As the residential area is the basic functional unit in the city, its number is large and its construction project is huge; accordingly, the CO2 emission is also huge in the process of construction and use. On the basis of the LCP theory and method, the researchers in this paper propose a new approach used to calculate the carbon emissions in the urban residential area through comprehensively considering the CO2 emission and CO2 absorption of carbon sink-green space in the total life cycle of the urban community. In addition, taking the typical multi-story residential areas in Shenyang City as the sample, the researchers calculate the carbon emission and discuss the features of emission in the residential area as well as the method and potential of reducing the carbon emission. The calculation results show that, the carbon emissions in the process of operation an use account for the largest proportion for the total life cycle, up to 83.8%; the carbon emissions in the process of preparing the materials for construction account for 7.69%; the carbon emissions at the stage of building demolition account for 5.32%. The carbon emissions at the stage of construction are the smallest in amount, which can be basically negligible. According to the existing energy structure, construction specifications and technical level, 4.8% of the CO2 emissions in the residential area can be absorbed through the green space and that the carbon emissions in the residential area can be reduced through taking the energy conservation measures, using the renewable energy and increasing the area of carbon sinks.