title: [Emission Inventory of Crop Residues Field Burning and Its Temporal and Spatial Distribution in Sichuan Province].
abstract: Based on the collected activity data, the 2012 emission inventory of crop residues field burning in Sichuan province was developed through the emission factor approach. Besides, the temporal and spatial distribution of pollutant emissions was also analysed in this paper. The results showed that the total emissions of SO2, NO(x), NH3, CH4, NMVOC, CO, PM2.5, EC and OC from crop residues field burning in Sichuan province in the year of 2012 were 1 210, 12 185, 2 827, 20 659, 40 463, 292 671, 39 277, 1 984 and 10 215 t, respectively; The rice straw, wheat straw, corn straw and oil rape straw were four major contributors to pollutant emissions, with a total contribution about 88% - 94%; Crop residues field burning emissions were affected by agricultural harvesting. Temporally, the emissions were concentrated in July and August with a small peak in May; Spatially, the Chengdu plain, the Northern area and the Eastern area of Sichuan province were the highest emission areas, while the Western area had relatively low emissions; The key uncertain sources included emission factors and parameters used for estimating crop burning amounts.
authors.forename: Min
authors.initials: M
authors.lastname: He
authors.forename: Xing-rui
authors.initials: XR
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Han
authors.forename: Xiao-qiong
authors.initials: XQ
authors.lastname: Feng
authors.forename: Xue
authors.initials: X
authors.lastname: Mao
mesh_terms: D000383:Agriculture; D000393:Air Pollutants / Q000032:analysis*; D029741:Brassica rapa; D002681:China; D018556:Crops, Agricultural; D004784:Environmental Monitoring; D005390:Fires; D012275:Oryza; D014908:Triticum; D003313:Zea mays
chemical_list: D000393:Air Pollutants