广东省高速公路建设期碳排放核算方法研究及应用

Research and Application of Carbon Emission Accounting Methods during the Construction Period of Highways in Guangdong Province

本文在对比当前碳排放核算思路的两种思路的特点,分析公路建设工程在质量、进度、计量方面的特点后,选择基于“自下而上”思路的碳排放因子法与实测法结合的核算方法,开展高速公路建设期碳排放核算。分析国际碳排放核算边界、部分先行行业碳排放核算边界后,明确高速公路建设期碳排放核算边界,依托广东省雄信高速,对项目建设期碳排放进行核算,项目建设阶段碳排放总量为62.87万t,单位公里碳排放强度15 216t/km,车道公里碳排放强度3 804t/km/车道。从碳排放源角度来看,少数建材和设备碳排放量占总碳排放量超过80%,分析了碳排放管控的对象和抓手,选择了部分降碳措施减少建设阶段碳排放。

After comparing the characteristics of the two current carbon emission accounting ideas,and analyzing the characteristics of highway construction projects in terms of quality,schedule and measurement,this paper chooses an accounting method based on the“bottom-up”thinking of carbon emission factor method and actual measurement method to carry out carbon emission accounting during the construction period of expressways.After analyzing the international carbon emission accounting boundary and the carbon emission accounting boundary of some leading industries,the carbon emission accounting boundary during the construction period of the expressway was defined.Relying on the Xiongxin Expressway in Guangdong Province,the carbon emission during the construction period of the project was calculated.The total carbon emission during the construction period of the project was 628700t,and the carbon emission intensity per kilometer was 15216t/km.Carbon emission intensity 3804t/km/lane.From the perspective of carbon emission sources,the carbon emissions of a few building materials and equipment accounted for more than 80%of the total carbon emissions.The object and starting point of carbon emission control were analyzed,and some carbon reduction measures were selected to reduce carbon emissions in the construction stage.