Research on Carbon Emission of Green Building in the Full Life Cycle

Due to the increase in carbon emission in the past two decades, especially the construction industry, people's awareness of energy conservation and emission reduction has increased. Therefore, green buildings have gradually prevailed in the construction field and entered China's construction market. This paper is mainly to study the carbon emission on the full life cycle of green buildings. At the beginning, starting from the concept of green buildings, green buildings are divided into resource-conserving type and environment-friendly type. And according to the decrease in carbon emission, green buildings are divided into one-star, two-star and three-star. Through the Person Coefficient Method and Principal Component Analysis (PCA) method. The factors that affect green buildings carbon emission are mainly in the construction operation stage and the preparation stage. Comparing advantages and disadvantages of different methods, the Carbon emission factor method using in different stages is the most suitable method to calculate carbon emission. Finally, according to the proportion of carbon emission at different stages, the corresponding emission reduction policies are proposed. In the context of the "dual carbon", the researches of energy conservation and emission reduction are getting deeper and deeper, and carbon peaking and carbon neutrality are achieved at all stages of the construction industry.