Water-soluble ions and oxygen isotope in precipitation over a site in northeastern Tibetan Plateau, China

doi:10.1007/s10874-019-09393-2

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Water-soluble ions and oxygen isotope in precipitation over a site in northeastern Tibetan Plateau, China
	Wang, Linqing 1,2; Shen, Zhenxing 1,2; Lu, Di 1; Xu, Hongmei 1; Zhang, Ningning 2; Lei, Yali 1; Zhang, Qian 3; Wang, Xin 4; Wang, Qiyuan 2; Cao, Junji 2
刊名	JOURNAL OF ATMOSPHERIC CHEMISTRY
	2019-09-01
卷号	76 期号:3 页码:229-243
关键词	Precipitation chemistry Water-soluble ions Dissolved components Enrichment factor Qinghai Lake
ISSN号	0167-7764
DOI	10.1007/s10874-019-09393-2
通讯作者	Shen, Zhenxing(zxshen@mail.xjtu.edu.cn)
英文摘要	A total of 30 precipitation samples were collected at a remote site of Qinghai Lake in the northeastern Tibetan Plateau, China, from June to August 2010. All samples were analyzed for major cations (NH4+, Na+, K+, Ca2+, and Mg2+) and anions (F-, Cl-, NO3-, and SO42-), electric conductivity (EC), pH, dissolved organic carbon (DOC), and oxygen isotopic composition (delta O-18). The volume-weighted mean (VWM) values of pH and EC in the precipitation samples were 7.2 and 19.0 mu s cm(-1). Ca2+ was the dominant cation in precipitation with a VWM of 116.9 mu eq L-1 (1.6-662.9 mu eq L-1), accounting for 45.7% of total ions in precipitation. SO42- was the predominant anion with a VWM of 32.7 mu eq L-1, accounting for 47.1% of the total anions. The average precipitation DOC was 1.4 mg L-1, and it shows a roughly negative power function with the precipitation amount. The values of delta O-18 in the rainwater in Qinghai Lake varied from -13.5 parts per thousand to -3.9 parts per thousand with an average of -8.1 parts per thousand. The enrichment factor analysis indicates that crustal materials from continental dust were the major sources for Ca2+ in the precipitation samples. The high concentration of Ca2+ in the atmosphere played an important role in neutralizing the acidity of rainwater in Qinghai Lake area. Cluster analysis of air-mass trajectories indicates that the air masses associated with northeast and east had high values of NH4+, SO42-, and NO3-, whereas large Ca2+ loading was related to the air mass from west.
资助项目	State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences[SKLLQG1616]
WOS关键词	DISSOLVED ORGANIC-CARBON ; LONG-TERM TREND ; CHEMICAL-COMPOSITION ; QINGHAI LAKE ; ATMOSPHERIC PRECIPITATION ; SEASONAL-VARIATIONS ; STABLE-ISOTOPE ; RAINWATER ; REGION ; CHEMISTRY
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000485888400003
资助机构	State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13548]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Shen, Zhenxing
作者单位	1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 3.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Shaanxi, Peoples R China 4.Max Planck Inst Chem, Multiphase Chem Dept, D-55128 Mainz, Germany
推荐引用方式 GB/T 7714	Wang, Linqing,Shen, Zhenxing,Lu, Di,et al. Water-soluble ions and oxygen isotope in precipitation over a site in northeastern Tibetan Plateau, China[J]. JOURNAL OF ATMOSPHERIC CHEMISTRY,2019,76(3):229-243.
APA	Wang, Linqing.,Shen, Zhenxing.,Lu, Di.,Xu, Hongmei.,Zhang, Ningning.,...&Cao, Junji.(2019).Water-soluble ions and oxygen isotope in precipitation over a site in northeastern Tibetan Plateau, China.JOURNAL OF ATMOSPHERIC CHEMISTRY,76(3),229-243.
MLA	Wang, Linqing,et al."Water-soluble ions and oxygen isotope in precipitation over a site in northeastern Tibetan Plateau, China".JOURNAL OF ATMOSPHERIC CHEMISTRY 76.3(2019):229-243.