Global warming is one of the ecological environment problems that people are highly concerned about,and carbon emissions have become a research hotspot.The transportation industry will generate a lot of energy consumption.As a safe and environmentally friendly mode of transportation,the subway is being built at a high speed,and the construction industry has a large space for emission reduction.Therefore,accounting for carbon emissions during subway construction will help to predict carbon emission trends and provide a research basis for carbon emission reduction.This study summarized the research progress of carbon emission accounting in subway construction period in terms of the choice of evaluation method,the division of system boundary and inventory analysis.Based on the whole life cycle theory,scholars use the emission factor method to divide the source of carbon emission into three stages:Building material production,material transportation and on-site construction to carry out carbon emission research.Based on the comparative analysis of the existing inventory analysis contents,it is found that the carbon emissions of building materials production stage account for the largest proportion,and steel bar,concrete and cement are the main high carbon emission building materials.Based on this,the basic research methods and emission reduction ideas of carbon emission accounting in subway construction are put forward.
关键词
地铁建设期/碳排放/生命周期理论/排放因子法/清单分析
Key words
Subway construction period/carbon emissions/life cycle theory/emission factor method/inventory analysis
维普
万方数据