globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2020.117401
论文题名:
A new method for quantification of regional nitrogen emission - Deposition transmission in China
作者: Ma M.; Chen W.; Jia S.; Chang M.; Zhong B.; Wang X.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 227
语种: 英语
英文关键词: Ammonia ; River pollution ; Transmissions ; Uncertainty analysis ; Air pollution in chinas ; Anthropogenic emissions ; Center migration ; Corresponding measures ; Nitrogen emissions ; Terrestrial ecosystems ; Urban agglomerations ; WRF-EMEP ; Urban transportation ; ammonia ; nitrogen ; atmospheric pollution ; ecological impact ; global change ; numerical method ; quantitative analysis ; spatiotemporal analysis ; terrestrial ecosystem ; air pollution ; Article ; atmospheric deposition ; atmospheric transport ; China ; diffusion ; dry deposition ; geographic distribution ; nitrogen deposition ; oxidation ; priority journal ; China
学科: Deposition transmission ; Nitrogen emission ; SDE Center migration method ; WRF-EMEP
中文摘要: The spatial-temporal pattern of N deposition has an important ecological impact on terrestrial ecosystems, providing a scientific background for the study of global changes. Based on the analysis method of spatial ellipse, we establish the standard deviation ellipse (SDE) center migration method to quantify the transport of regional deposition, and discuss the uncertainty of this method, which proves the feasibility of this method in characterizing the regional transport of nitrogen deposition. In October 2015, about 70% of the local emissions from the three regions in the Beijing-Tianjin-Hebei (BTH) region, the Yangtze River Delta (YRD) region and the Pearl River Delta (PRD) region are deposited to the ground (about 30% are located within the region and 40% are outside the region). The results show that native nitrogen from anthropogenic emissions in BTH area migrates to the southeast while there is a southwest migration relative to emission area in the YRD and PRD region. Compared with reduced nitrogen, oxidized nitrogen is more susceptible to transport. This phenomenon is mainly related to the strong atmospheric reactivity of ammonia in the atmosphere. The transport distance of nitrogen deposition in different areas is the BTH>YRD>PRD. The transmission impact from the BTH region is relatively bigger. It is pointed out that more attention should be paid to the control of oxidized nitrogen emerging from nitrogen deposition on the transport of external areas in China's core urban agglomeration. The government and relevant departments need to formulate corresponding measures to smooth the current situation of air pollution in China. © 2020 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160407
Appears in Collections:气候变化与战略

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作者单位: Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Institute for Environmental and Climate Research, Jinan University, Guangzhou, China; School of Atmospheric Sciences, & Guangdong Province Key Laboratory for Climate Change and Natural Disaster Studies, Sun Yat-sen University, Guangzhou, 510275, China; Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai, 519000, China

Recommended Citation:
Ma M.,Chen W.,Jia S.,et al. A new method for quantification of regional nitrogen emission - Deposition transmission in China[J]. Atmospheric Environment,2020-01-01,227
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