贵阳市道路公共交通CH_4和N_2O排放清单研究

Study on CH_4 and N_2O Emission Inventory of Road Public Transportation in Guiyang City

本文采用平均速度来表征公共交通行驶对排放的影响,速度修正因子来计算欧洲NEDC下的CH_4和N_2O排放因子。对山地城市贵阳公共交通按不同燃料、车龄、车辆保有量、年平均行驶里程及测算的排放因子,建立2014年贵阳市公交车、出租车CH_4和N_2O排放清单,结果表明,天然气为燃料的公共交通是CH_4的主要来源,汽油车是N_2O排放的主要来源。因此,通过减少温室气体CH_4和N_2O的排放,是实现贵阳市发展绿色低碳健康城市有效途径。

This paper uses the average velocity to characterize the impact of public transport on emissions,and the speed correction factor to calculate the CH4 and N2O emission factors under European NEDC.For the public transportation of mountainous city Guiyang,according to different fuels,vehicle age,vehicle ownership,annual average mileage and estimated emission factors,the list of bus and taxi CH4 and N2O emissions in Guiyang in 2014 will be established.The inventory data shows that natural gas is Public transportation of fuel is the main source of CH4,which is the main source of N2O emissions.Therefore,by reducing greenhouse gas CH4 and N2O emissions,it is an effective way to develop green and low-carbon healthy cities in Guiyang.