京哈高速公路车辆碳排放估算

The Carbon Emission From Vehicles of Beijing-Harbin Highway

交通运输行业的碳排放一直处于快速增长阶段,高速公路的车辆排放是其重要来源之一。以国家主干高速公路京哈高速公路为例,基于高速公路沿线车流量实测数据和不同类型车辆的CO2排放因子,定量地估算了京哈高速公路车辆的碳排放量。结果表明,京哈高速公路车辆每年的碳排放量(以CO2计)为372.52万t,其中,辽宁境内路段排放量最大,为174.74万t,占全线总排放量的46.9%,北京市境内路段排放量最小,只占总排放量的2.6%。年总排放量在车型分配上,以大型车居多,达到267.14万t,占总量的71.7%,其次是小型车,为80.26万t,占总量的21.5%。在燃油类型分配上以柴油车居多,柴油车共排放了283.24万t,占总量的76.0%,汽油车排放占总量的24.0%。

The CO2 emission from the transportation industry increases rapidly and the vehicles nmning in highways is one of the main sources. Based on CO2 emission factors and traffic volumes of various vehicle categories, CO2 emission from Beijing- Harbin Highway is quantitatively estimated. The results show that the CO2 emission from vehicles running in Beijing- Harbin Highway is 3.73 million tannes each year, the majority of which （ 1.75 million t） comes from the territory of Liaon- ing Province （account for 46.9%） and the smallest emission is in Beijing （only account for 2.6% ）. As for the vehicle category, large size vehicles account for71.7% （2.67 million t） and small size vehicles account for 21.5% （802.6 thousand t）. With regard to different fuel vehicles, diesel vehicles account for 76.0% （2.83 million t） and gasoline vehicles only account for 24.0%.