成都市机动车NO_x排放清单的建立及其空间分布研究

Establishment of Emission Inventory and Spatial Distribution Research of NO_x from Motor Vehicles in Chengdu City

通过对成都市车辆信息(包括车流量、车辆构成及车辆行驶工况等)进行调研和测试,根据IVE模型得出了机动车NO_x的排放清单。结果表明,2012年成都市机动车NO_x排放总量为76 859.4t。其中,轻型载客车、出租车、重型客车、公交车、摩托车、轻型载货车、重型载货车的年排放量分别为10 796.8t、397.4t、985.9t、6 801.4t、3030.9t、13 081.8t和41 765.2t。在此基础上,利用GIS对成都市机动车排放NO_x总量按不同道路类型进行空间分配,得出机动车排放产生的NO_x总量的空间分布与排放源强分布高度一致。

This study had investigated the vehicle data, including traffic flow, distribution, driving patterns in Chengdu, and had obtained the motor vehicle emissions inventory of NOx through IVE model. The results showed that the total emissions of NOX from motor vehicle were 76 859.4t of Chengdu in 2012, and the emissions from light load buses, taxis, heavy passenger cars, buses, motorcycles, light trucks, heavy trucks were 10 796. 8t, 397.4t, 985.9t, 6 801.4t, 3 030. 9t, 13 081.8t and 41 765. 2t, respectively. On this basis, GIS was used to allocate the total motor vehicle emissions NOX spatially in Chengdu, it is concluded that the spatial distribution of the total emission NOX was highly consistent with the source intensity distribution.