Knowledge Management System Of Guangzhou Institute of Geochemistry,CAS
Liu, Xue-Yan1,2,3; Xiao, Hong-Wei4,5; Xiao, Hua-Yun3; Song, Wei1; Sun, Xin-Chao1; Zheng, Xu-Dong1; Liu, Cong-Qiang1,3; Koba, Keisuke2,6 | |
Stable isotope analyses of precipitation nitrogen sources in Guiyang, southwestern China | |
刊名 | ENVIRONMENTAL POLLUTION
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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. |
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