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DOI	10.1007/s11356-016-6455-1
	Concentration, sources, and flux of dissolved organic carbon of precipitation at Lhasa city, the Tibetan Plateau
	Li, Chaoliu; Yan, Fangping; Kang, Shichang; Chen, Pengfei; Qu, Bin; Hu, Zhaofu; Sillanpaa, Mika
发表日期	2016
ISSN	0944-1344
EISSN	1614-7499
卷号	23 期号:13
英文摘要	Dissolved organic carbon (DOC) plays an important role in the climate system, but few data are available on the Tibetan Plateau (TP). In this study, 89 precipitation samples were collected at Lhasa, the largest city of southern Tibet, from March to December 2013. The average concentration and wet deposition flux of DOC was 1.10 mg C L-1 and 0.63 g C m(-2) year(-1), respectively. Seasonally, low DOC concentration and high flux appeared during the monsoon period, which were in line with heavy precipitation amount, reflecting dilution effect of precipitation for the DOC. Compared to other regions, the values of Lhasa were lower than those of large cities (e.g., Beijing and Seoul) mainly because of less air pollution of Lhasa. The principal component analysis (PCA) of DOC and ions (Ca2+, Mg2+, Na+, K+, NH4+, Cl-, NO3-, and SO42-) showed that DOC of Lhasa was derived mainly from the natural sources, followed by anthropogenic burning activities. Furthermore, Delta C-14 value of DOC indicated that fossil fuel combustion contributed around 28 % of the rainwater DOC of Lhasa, indicating that the atmosphere of Lhasa has been influenced by emission from fossil fuel combustion or high-temperature industrial processes.
关键词	Dissolved organic carbon Wet deposition Pollutants Urban area The Tibetan Plateau
学科领域	Environmental Sciences & Ecology
语种	英语
WOS研究方向	Environmental Sciences
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111838
作者单位	Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Li, Chaoliu,Yan, Fangping,Kang, Shichang,et al. Concentration, sources, and flux of dissolved organic carbon of precipitation at Lhasa city, the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2016,23(13).
APA	Li, Chaoliu.,Yan, Fangping.,Kang, Shichang.,Chen, Pengfei.,Qu, Bin.,...&Sillanpaa, Mika.(2016).Concentration, sources, and flux of dissolved organic carbon of precipitation at Lhasa city, the Tibetan Plateau.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(13).
MLA	Li, Chaoliu,et al."Concentration, sources, and flux of dissolved organic carbon of precipitation at Lhasa city, the Tibetan Plateau".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.13(2016).