Stable isotope analyses of precipitation nitrogen sources in Guiyang, southwestern China

doi:10.1016/j.envpol.2017.06.010

GIG OpenIR

	Liu, Xue-Yan 1,2,3; Xiao, Hong-Wei 4,5; Xiao, Hua-Yun 3; Song, Wei 1; Sun, Xin-Chao 1; Zheng, Xu-Dong 1; Liu, Cong-Qiang 1,3; Koba, Keisuke 2,6
	Stable isotope analyses of precipitation nitrogen sources in Guiyang, southwestern China
刊名	ENVIRONMENTAL POLLUTION
ISSN号	0269-7491
	2017-11-01
卷号	230 页码:486-494
DOI	10.1016/j.envpol.2017.06.010
语种	英语
WOS研究方向	Environmental Sciences & Ecology
摘要	To constrain sources of anthropogenic nitrogen (N) deposition is critical for effective reduction of reactive N emissions and better evaluation of N deposition effects. This study measured delta N-15 signatures of nitrate (NO3-), ammonium (Nflt) and total dissolved N (TDN) in precipitation at Guiyang, southwestern China and estimated contributions of dominant N sources using a Bayesian isotope mixing model. For NOT, the contribution of non-fossil N oxides (NOx, mainly from biomass burning (24 +/- 12%) and microbial N cycle (26 5%)) equals that of fossil NOx, to which vehicle exhausts (31 +/- 19%) contributed more than coal combustion (19 9%). For NO3-, ammonia (NH3) from volatilization sources (mainly animal wastes (22 12%) and fertilizers (22 +/- 10%)) contributed less than NH3 from combustion sources (mainly biomass burning (17 +/- 8%), vehicle exhausts (19 +/- 11%) and coal combustions (19 +/- 12%)). Dissolved organic N (DON) accounted for 41% in precipitation TDN deposition during the study period. Precipitation DON had higher 8.15N values in cooler months (13.1 parts per thousand) than in warmer months (-7.0 parts per thousand), indicating the dominance of primary and secondary ON sources, respectively. These results newly underscored the importance of non-fossil NOx, fossil NH3 and organic N in precipitation N inputs of urban environments. (C) 2017 Elsevier Ltd. All rights reserved.
关键词	Stable isotope Ammonium Nitrate Dissolved organic nitrogen SIAR Reactive nitrogen emission
WOS记录号	WOS:000412250900052
收录类别	SCI
引用统计
文献类型	期刊论文
条目标识符	http://ir.gig.ac.cn/handle/344008/45400
通讯作者	Liu, Xue-Yan; Xiao, Hua-Yun
作者单位	1.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China 2.Tokyo Univ Agr & Technol, Inst Agr, Tokyo 1838509, Japan 3.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Guizhou, Peoples R China 4.East China Univ Technol, Atmospher Environm Lab, Key Lab Nucl Resources & Environm, Minist Educ, Nanchang 330013, Jiangxi, Peoples R China 5.East China Univ Technol, Sch Water Resources & Environm Engn, Nanchang 330013, Jiangxi, Peoples R China 6.Kyoto Univ, Ctr Ecol Res, Otsu, Shiga 5202113, Japan
推荐引用方式 GB/T 7714	Liu, Xue-Yan,Xiao, Hong-Wei,Xiao, Hua-Yun,et al. Stable isotope analyses of precipitation nitrogen sources in Guiyang, southwestern China[J]. ENVIRONMENTAL POLLUTION,2017,230:486-494.
APA	Liu, Xue-Yan.,Xiao, Hong-Wei.,Xiao, Hua-Yun.,Song, Wei.,Sun, Xin-Chao.,...&Koba, Keisuke.(2017).Stable isotope analyses of precipitation nitrogen sources in Guiyang, southwestern China.ENVIRONMENTAL POLLUTION,230,486-494.
MLA	Liu, Xue-Yan,et al."Stable isotope analyses of precipitation nitrogen sources in Guiyang, southwestern China".ENVIRONMENTAL POLLUTION 230(2017):486-494.