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Local PM10 and PM2.5 emission inventories from agricultural tillage and harvest in northeastern China
W. W. Chen, D. Q. Tong, S. C. Zhang, X. L. Zhang and H. M. Zhao; Chen WW(陈卫卫)
2017
发表期刊Journal of Environmental Sciences
卷号57页码:15-23
摘要Mineral particles or particulate matters (PMs) emitted during agricultural activities are major recurring sources of atmospheric aerosol loading. However, precise PM inventory from agricultural tillage and harvest in agricultural regions is challenged by infrequent local emission factor (EF) measurements. To understand PM emissions from these practices in northeastern China, we measured EFs of PM10 and PM2.5 from three field operations (i.e., tilling, planting and harvesting) in major crop production (i.e., corn and soybean), using portable real-time PM analyzers and weather station data. County-level PM10 and PM2.5 emissions from agricultural tillage and harvest were estimated, based on local EFs, crop areas and crop calendars. The EFs averaged (107 +/- 27), (17 +/- 5) and 26 mg/m(2) for field tilling, planting and harvesting under relatively dry conditions (i.e., soil moisture <15%), respectively. The EFs of PM from field tillage and planting operations were negatively affected by topsoil moisture. The magnitude of PM10 and PM2.5 emissions from these three activities were estimated to be 35.1 and 9.8 kilotons/yr in northeastern China, respectively, of which Heilongjiang Province accounted for approximately 45%. Spatiotemporal distribution showed that most PM10 emission occurred in April, May and October and were concentrated in the central regions of the northeastern plain, which is dominated by dryland crops. Further work is needed to estimate the contribution of agricultural dust emissions to regional air quality in northeastern China. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
DOI10.1016/j.jes.2016.02.024
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/7568
专题湿地与全球变化学科组
通讯作者Chen WW(陈卫卫)
推荐引用方式
GB/T 7714
W. W. Chen, D. Q. Tong, S. C. Zhang, X. L. Zhang and H. M. Zhao,Chen WW. Local PM10 and PM2.5 emission inventories from agricultural tillage and harvest in northeastern China[J]. Journal of Environmental Sciences,2017,57:15-23.
APA W. W. Chen, D. Q. Tong, S. C. Zhang, X. L. Zhang and H. M. Zhao,&陈卫卫.(2017).Local PM10 and PM2.5 emission inventories from agricultural tillage and harvest in northeastern China.Journal of Environmental Sciences,57,15-23.
MLA W. W. Chen, D. Q. Tong, S. C. Zhang, X. L. Zhang and H. M. Zhao,et al."Local PM10 and PM2.5 emission inventories from agricultural tillage and harvest in northeastern China".Journal of Environmental Sciences 57(2017):15-23.
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