Strontium concentrations and isotope ratios in a forest-river system in the South Qinling Mts., China

doi:10.1016/j.watres.2016.01.061

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	Strontium concentrations and isotope ratios in a forest-river system in the South Qinling Mts., China
	Bu, Hongmei 1; Song, Xianfang 1; Zhang, Quanfa 2; Burford, Michele A.3
刊名	WATER RESEARCH
	2016-04-15
卷号	93 页码:91-97
关键词	Forested catchment Sr Sr-87/Sr-86 Ca/Na Ca/K Source contribution
ISSN号	0043-1354
DOI	10.1016/j.watres.2016.01.061
英文摘要	The concentrations of dissolved strontium (Sr) and isotope ratios (Sr-87/Sr-86) in rainwater, river water, and water from forest soil are measured to investigate the contributions of these sources to a river during base flow conditions in the relatively pristine South Qinling Mountains, China. Dissolved Sr concentrations and 87Sr/86Sr ratios vary significantly between different water types (p < 0.01) suggesting that it is suitable for differentiating sources. Dissolved Sr is also positively correlated with most ions and a range of physicochemical parameters (p < 0.01 and p < 0.05 respectively) in water samples including Ca2+, Mg2+, EC, and TDS (p < 0.001) indicating their similarities in the drivers of biogeochemical processes and common origins. The correlations between Sr isotopes and Ca/Na, Ca/K, and 1000/Sr ratios suggest that three end-members of atmospheric inputs, carbonate and silicate weathering control the Sr water chemistry in the river water. Using the three-source mixing model, atmospheric inputs, carbonate, and silicate weathering contribute 74%, 20%, and 6% respectively to the dissolved Sr in the river water. This research has provided new insights into the contribution of sources of Sr to a river system in a mountainous catchment. (C) 2016 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41103069] ; China Scholarship Council[201404910228] ; Australian Rivers Institute
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000372940200011
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/82]
专题	中国科学院武汉植物园
通讯作者	Bu, Hongmei
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China 3.Griffith Univ, Australian Rivers Inst, Nathan, Qld 4111, Australia
推荐引用方式 GB/T 7714	Bu, Hongmei,Song, Xianfang,Zhang, Quanfa,et al. Strontium concentrations and isotope ratios in a forest-river system in the South Qinling Mts., China[J]. WATER RESEARCH,2016,93:91-97.
APA	Bu, Hongmei,Song, Xianfang,Zhang, Quanfa,&Burford, Michele A..(2016).Strontium concentrations and isotope ratios in a forest-river system in the South Qinling Mts., China.WATER RESEARCH,93,91-97.
MLA	Bu, Hongmei,et al."Strontium concentrations and isotope ratios in a forest-river system in the South Qinling Mts., China".WATER RESEARCH 93(2016):91-97.