气候变化领域集成服务门户(CCPortal): Precipitation chemistry in the Source Region of the Yangtze River

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DOI	10.1016/j.atmosres.2020.105073
	Precipitation chemistry in the Source Region of the Yangtze River
	Li Z.; Li Z.; Song L.; Gui J.; Xue J.; Zhang B.; Gao W.
发表日期	2020
ISSN	0169-8095
卷号	245
英文摘要	A study of ions sources and water vapor sources was carried out from April 1, 2016 to October 31, 2018, at Zhimenda(ZMD), Qumalai(QML) and Tuotuohe(TTH) in the source region of the Yangtze River to obtain preliminary quantitative results for the contributions of the ion and water vapor sources. In the study, 489 precipitation samples analyzed for pH, EC, and ionic concentrations were evaluated by using neutralization factor analysis, factor analysis, and trajectory analysis. The results revealed that Na+ was derived mainly from crustal sources. However, K+, Mg2+, and Ca2+ were only mainly controlled by crustal sources, with contribution rates of 93.60%, 58.88%, and 98.10%, respectively. Marine sources made the greatest contribution to Cl− (99.03%). The most important contributor of NO3− (99.52%) and SO42− (83.23%) was anthropogenic sources. F− was mainly controlled by crustal sources and anthropogenic sources. Although there were different water vapor paths in different seasons at different sample sites, water vapor in the study area was mainly controlled by westerly circulation and monsoon circulation. The largest contributions of westerly circulation were for Cl− and K+, whereas monsoon circulation mainly contributed the ionic concentration of NH4+. However, the largest number of ions was contributed by a westerly circulation–monsoon circulation pattern. These ions were F−, NO2−, SO42−, Li+, Na+, Mg2+, and Ca2+, with contributions of 51.20%, 41.60%, 42.30%, 53.68%, 40.36%, 40.22%, and 34.20% of the total, respectively. NO3− was mainly contributed by westerly circulation–regional circulation. © 2020 Elsevier B.V.
英文关键词	Chemical characteristic; Precipitation; Source region; Water vapor source; Yangtze River
语种	英语
scopus关键词	Atmospheric thermodynamics; Factor analysis; Ions; Multivariant analysis; Transport properties; Anthropogenic sources; Ionic concentrations; Monsoon circulations; Neutralization factor; Precipitation chemistry; Precipitation samples; Regional circulation; Source region of the yangtze rivers; Water vapor; atmospheric circulation; chemical composition; concentration (composition); ionic composition; point source; precipitation quality; quantitative analysis; water vapor; westerly; China; Yangtze River
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141831
作者单位	College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, 730050, China; Key Laboratory of Ecohydrology of Inland River Basin, Gansu Qilian Mountains Ecology Research Center, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; College of Forestry, Gansu Agricultural University, Lanzhou, Gansu 730070, China
推荐引用方式 GB/T 7714	Li Z.,Li Z.,Song L.,et al. Precipitation chemistry in the Source Region of the Yangtze River[J],2020,245.
APA	Li Z..,Li Z..,Song L..,Gui J..,Xue J..,...&Gao W..(2020).Precipitation chemistry in the Source Region of the Yangtze River.Atmospheric Research,245.
MLA	Li Z.,et al."Precipitation chemistry in the Source Region of the Yangtze River".Atmospheric Research 245(2020).