delta N-15-NH4+ variations of rainwater: Application of the Rayleigh model

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	delta N-15-NH4+ variations of rainwater: Application of the Rayleigh model
	Xiao, Hong-Wei; Xiao, Hua-Yun; Long, Ai-Min; Liu, Cong-Qiang
刊名	ATMOSPHERIC RESEARCH
	2015
卷号	157 页码:49-55
关键词	Rayleigh model Initial concentration Enrichment factor Initial nitrogen isotope Ammonia
通讯作者	xiaohw@scsio.ac.cn ; xiaohuayun@vip.skleg.cn
中文摘要	It is generally difficult to measure atmospheric gaseous ammonia concentration and to identify its sources by isotopic technique due to the isotopic fractionation after it enters the atmosphere. In this study, Rayleigh model was successfully used to quantify atmospheric concentration and isotopic composition of gaseous ammonia based on sampling of 20 rain events from October 1st, 2008 to September 30, 2009 in Guiyang, southwest China. The estimated gaseous ammonia concentration was 25.7 +/- 36.3 mu g/m(3) and estimated isotopic composition was -16.8 +/- 4.9 parts per thousand in Guiyang. The study also showed that estimated enrichment factor was +10.4 +/- 43 parts per thousand, inferring that large nitrogen isotopic fractionation occurred during exchange reactions in most of the rain events. The atmospheric ammonium deposition was further estimated to be 38.1 kg/ha/year. However, there is no validation for the approach from an actual gas phase NH3 measurement to examine the model in this study. (C) 2015 Elsevier B.V. All rights reserved.
学科主题	Meteorology & Atmospheric Sciences
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/15103]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	Xiao, Hong-Wei,Xiao, Hua-Yun,Long, Ai-Min,et al. delta N-15-NH4+ variations of rainwater: Application of the Rayleigh model[J]. ATMOSPHERIC RESEARCH,2015,157:49-55.
APA	Xiao, Hong-Wei,Xiao, Hua-Yun,Long, Ai-Min,&Liu, Cong-Qiang.(2015).delta N-15-NH4+ variations of rainwater: Application of the Rayleigh model.ATMOSPHERIC RESEARCH,157,49-55.
MLA	Xiao, Hong-Wei,et al."delta N-15-NH4+ variations of rainwater: Application of the Rayleigh model".ATMOSPHERIC RESEARCH 157(2015):49-55.