Strontium concentrations and isotope ratios in a forest-river system in the South Qinling Mts., China
文献类型：SCI/SSCI论文
| 作者 | Bu H.; Song, X.; Zhang, Q. ; Burford, M. A.
|
| 发表日期 | 2016 |
| 关键词 | Forested catchment Sr Sr-87/Sr-86 Ca/Na Ca/K Source contribution jinshui river sr isotopes water mountains tracers calcium transport ecosystem budget inputs |
| 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. |
| 出处 | Water Research |
| 卷 | 93 |
| 页 | 91-97 |
| 语种 | 英语 |
| ISSN号 | 0043-1354 |
| DOI标识 | 10.1016/j.watres.2016.01.061 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/42868]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Bu H.,Song, X.,Zhang, Q.,et al. Strontium concentrations and isotope ratios in a forest-river system in the South Qinling Mts., China. 2016. |
入库方式： OAI收割
来源：地理科学与资源研究所
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