气候变化领域集成服务门户(CCPortal): A new method for quantification of regional nitrogen emission

CCPortal

DOI	10.1016/j.atmosenv.2020.117401
	A new method for quantification of regional nitrogen emission - Deposition transmission in China
	Ma M.; Chen W.; Jia S.; Chang M.; Zhong B.; Wang X.
发表日期	2020
ISSN	1352-2310
卷号	227
英文摘要	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
关键词	Deposition transmission Nitrogen emission SDE Center migration method WRF-EMEP
语种	英语
scopus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
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/249236
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
推荐引用方式 GB/T 7714	Ma M.,Chen W.,Jia S.,et al. A new method for quantification of regional nitrogen emission - Deposition transmission in China[J],2020,227.
APA	Ma M.,Chen W.,Jia S.,Chang M.,Zhong B.,&Wang X..(2020).A new method for quantification of regional nitrogen emission - Deposition transmission in China.ATMOSPHERIC ENVIRONMENT,227.
MLA	Ma M.,et al."A new method for quantification of regional nitrogen emission - Deposition transmission in China".ATMOSPHERIC ENVIRONMENT 227(2020).