中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Water-soluble ions and oxygen isotope in precipitation over a site in northeastern Tibetan Plateau, China

文献类型:期刊论文

作者Wang, Linqing2,3; Shen, Zhenxing2,3; Lu, Di2; Xu, Hongmei2; Zhang, Ningning3; Lei, Yali2; Zhang, Qian4; Wang, Xin1; Wang, Qiyuan3; Cao, Junji3
刊名JOURNAL OF ATMOSPHERIC CHEMISTRY
出版日期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
DOI10.1007/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.
WOS关键词DISSOLVED ORGANIC-CARBON ; LONG-TERM TREND ; CHEMICAL-COMPOSITION ; QINGHAI LAKE ; ATMOSPHERIC PRECIPITATION ; SEASONAL-VARIATIONS ; STABLE-ISOTOPE ; RAINWATER ; REGION ; CHEMISTRY
资助项目State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences[SKLLQG1616]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000485888400003
出版者SPRINGER
资助机构State Key Laboratory of Loess and Quaternary Geology, Chinese Academy of Sciences
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.Max Planck Inst Chem, Multiphase Chem Dept, D-55128 Mainz, Germany
2.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China
4.Xian Univ Architecture & Technol, Sch Environm & Municipal Engn, Xian 710055, Shaanxi, Peoples R China
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.

入库方式: OAI收割

来源:地球环境研究所

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