基于"3S"的南京市大气污染源清单网格化空间分配研究

基于GIS、RS、GPS集成技术,依据南京市10大类大气污染源排放和空间分布特征,采用合适的空间分配方法,根据各排放源的相关权重分配因子,构建了南京市2015年大气污染源排放清单1 km×1 km的网格化空间数据库,并基于GIS平台叠加显示形成了2015年南京市大气污染源1 km×1 km空间分布图.结果表明,此次空间分配结果与南京市GDP、路网、人口、农业等相关分布特征相互吻合,说明本研究网格化空间分配方法较为合理可靠,可满足后续空气质量模拟的需求.

Study on Spatial Allocation of Air Pollution Emissions Inventory for Nanjing based on "3 S"

Using the appropriate spatial distribution method and weight distribution factor, 1 km × 1 km grid of spatial da-tabase in Nanjing was constructed based on the emission characteristics and of air pollution sources and the integrated technology of GIS, RS and GPS. The results showed that the spatial distribution of air pollution emissions inventory was consistenting with the GDP, road network, population and agriculture distribution characteristics in Nanjing. The result also implies that the allo-cation method was feasible and plausible and Grid-based emission inventory developed by this approach is suitable for air qual-ity modelling.