气候变化领域集成服务门户(CCPortal): Spatial and temporal variations of open straw burning based on fire spots in northeast China from 2013 to 2017

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DOI	10.1016/j.atmosenv.2020.117962
	Spatial and temporal variations of open straw burning based on fire spots in northeast China from 2013 to 2017
	Cui S.; Song Z.; Zhang L.; Shen Z.; Hough R.; Zhang Z.; An L.; Fu Q.; Zhao Y.; Jia Z.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	Open straw burning releases significant amounts of particulate matter (PM) and trace gases into the air and thus is an important source of atmospheric pollutants in China. In this study, based on fire spots in northeast China from 2013 to 2017, we analyzed pollution concentration degree (PCD) and pollution concentration period (PCP), and assessed spatial and temporal variations of open straw burning. Straw types and burning areas were then determined according to the distributions of fire spots and land use dataset. The amounts of several major atmospheric pollutants (PM10, PM2.5, CO, NOx and NMVOCs (non-methane volatile organic compounds)) emitted into the atmosphere from open straw burning were estimated according to crop production, Residue/Grain ratio (R/G), combustion efficiency and emission factor. Open straw burning occurred frequently in dry and paddy fields, mainly in areas of West and Northeast Heilongjiang Province, Midwest Jilin Province and Central Liaoning Province. The temporal variations of open straw burning tended to be dispersed with PCD varying from >0.8 during 2013–2015 to <0.4 during 2017 and PCP changing from 28.2 to 36.0 during autumn-winter seasons of 2013–2015 to 5.4–7.9 during winter-spring seasons of 2016–2017. During the five-year period (2013–2017), the total straw yield reached 628.7 million tons, of which 10.9 million tons were open burned in northeast China. The total amounts emitted from open straw burning were 108.9, 106.9, 552.9, 36.9 and 99.4 thousand tons for PM10, PM2.5, CO, NOx and NMVOCs, respectively. Among these emissions, corn straw burning contributed 81.7%, 81.6%, 71.4%, 86.8% and 74.9% while rice straw burning contributed 18.2%, 18.4%, 28.5%, 13.2% and 25.0%, respectively. Emissions from open straw burning have significant impacts on pollutants ambient concentrations, especially for PM2.5 in the autumn-winter seasons as indicated by their good correlations (p < 0.05). © 2020 Elsevier Ltd
关键词	Atmospheric pollutants Emission factor Fire spots Open straw burning
语种	英语
scopus关键词	Cultivation; Land use; Nitrogen oxides; Volatile organic compounds; Ambient concentrations; Atmospheric pollutants; Combustion efficiencies; Non-methane volatile organic compounds; Particulate Matter; Pollution concentration; Spatial and temporal variation; Temporal variation; Pollution; carbon dioxide; methane; nitric oxide; volatile organic compound; biomass burning; combustion; concentration (composition); particulate matter; rice; spatial variation; straw; temporal variation; volatile organic compound; air pollution; air pollution control; Article; atmosphere; autumn; burn; China; combustion; concentration process; crop production; exhaust gas; fire; grain; land use; nonhuman; particulate matter 10; particulate matter 2.5; plant residue; priority journal; seasonal variation; spatiotemporal analysis; spring; winter; China; Heilongjiang; Jilin; Liaoning; Zea mays
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248839
作者单位	International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin, Heilongjiang 150030, China; Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, ON M3H 5T4, Canada; Department of Environmental Sciences and Engineering, Xi'an Jiaotong University, Xi'an, 710049, China; The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, United Kingdom; State Environmental Protection Key Laboratory of Estuarine and Coastal Research, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
推荐引用方式 GB/T 7714	Cui S.,Song Z.,Zhang L.,et al. Spatial and temporal variations of open straw burning based on fire spots in northeast China from 2013 to 2017[J],2021,244.
APA	Cui S..,Song Z..,Zhang L..,Shen Z..,Hough R..,...&Jia Z..(2021).Spatial and temporal variations of open straw burning based on fire spots in northeast China from 2013 to 2017.ATMOSPHERIC ENVIRONMENT,244.
MLA	Cui S.,et al."Spatial and temporal variations of open straw burning based on fire spots in northeast China from 2013 to 2017".ATMOSPHERIC ENVIRONMENT 244(2021).