气候变化领域集成服务门户(CCPortal): Distribution of major elements between the dissolved and insoluble fractions in surface snow at Urumqi Glacier No. 1, Eastern Tien Shan

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DOI	10.1016/j.atmosres.2013.05.009
	Distribution of major elements between the dissolved and insoluble fractions in surface snow at Urumqi Glacier No. 1, Eastern Tien Shan
	Zhang, Chenglong; Wu, Guangjian; Gao, Shaopeng; Zhao, Zhongping; Zhang, Xuelei; Tian, Lide; Mu, Yujing; Joswiak, Daniel
通讯作者	Wu, GJ (通讯作者)
发表日期	2013
ISSN	0169-8095
EISSN	1873-2895
起始页码	299
结束页码	308
卷号	132
英文摘要	A total of sixty-three surface snow samples collected at Urumqi Glacier No. 1 (UG1), Eastern Tien Shan between March 2006 and December 2007 were analyzed for the concentrations of Na, K, Mg, and Ca in the dissolved and insoluble fractions by ion chromatography (IC) and inductively coupled plasma-mass spectrometry (ICP-MS), respectively. The dissolved and insoluble concentrations of these four major elements showed significantly positive correlation (coefficients 0.7 similar to 1.0, p < 0.0001) with the concentration of insoluble Al (a reference element of the upper continental crust), suggesting that the four elements were mainly derived from crustal materials. The median dissolved fraction percentage (DFP, calculated as dissolved/(dissolved + insoluble) x 100%) was 67.1% and 35.7% for Ca and Na, respectively, but only 16.8% and 8.9% for Mg and K, respectively. This suggests that Ca and Na were more readily released into the meltwater than were Mg and K from mineral dust in the UG1 snow. The elution sequence through the surface snow was determined to be Ca > Na > Mg > K by the change of DFP. The temporal variability of DFP was attributed to different processes, such as dry/wet deposition in the atmosphere and the post-depositional melting and elution in snow. The DFPs were relatively stable during the dry/cold season (December through March) due to predominantly dry deposition and infrequent elution, whereas they varied significantly during the wet/warm season (April through November) because DFP was modified by wet deposition (which will increase DFP) and the elution process (which will reduce DFP). Our results reveal that DFP can provide a new insight into the understanding and explanation of ice core records, and basic information for evaluating the impact of atmospheric dust on biogeochemical cycles. (C) 2013 Elsevier B.V. All rights reserved.
关键词	MINERAL AEROSOLS TIBETAN PLATEAU DUST PARTICLES RIVER VALLEY ALPINE SITE RURAL SITE CHINA PRECIPITATION PH SOLUBILITY
英文关键词	Surface snow; Tien Shan; Major elements; Dissolved fraction percentage (DFP)
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000326141500025
来源期刊	ATMOSPHERIC RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258105
推荐引用方式 GB/T 7714	Zhang, Chenglong,Wu, Guangjian,Gao, Shaopeng,et al. Distribution of major elements between the dissolved and insoluble fractions in surface snow at Urumqi Glacier No. 1, Eastern Tien Shan[J]. 中国科学院青藏高原研究所,2013,132.
APA	Zhang, Chenglong.,Wu, Guangjian.,Gao, Shaopeng.,Zhao, Zhongping.,Zhang, Xuelei.,...&Joswiak, Daniel.(2013).Distribution of major elements between the dissolved and insoluble fractions in surface snow at Urumqi Glacier No. 1, Eastern Tien Shan.ATMOSPHERIC RESEARCH,132.
MLA	Zhang, Chenglong,et al."Distribution of major elements between the dissolved and insoluble fractions in surface snow at Urumqi Glacier No. 1, Eastern Tien Shan".ATMOSPHERIC RESEARCH 132(2013).