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| DOI | 10.1016/j.scib.2018.12.016 |
| Environmental significance of levoglucosan records in a central Tibetan ice core | |
You, Chao; Yao, Tandong ; Xu, Chao
| |
| 发表日期 | 2019 |
| ISSN | 2095-9273 |
| EISSN | 2095-9281 |
| 卷号 | 64期号:2 |
| 英文摘要 | The environmental significance of levoglucosan (LEV) records in Tibetan glacier ice layers on sub-annual to annual scales, in particular their suitability as a specific biomarker for indicating past fire changes, is poorly understood at present. In this work, a continuous LEV record was reconstructed in a central Tibetan ice core for the period 1990-2012. The LEV record was classified into two categories based on its LEV concentrations: background levels and extreme events. Annually-resolved LEV records and background levels in the ice core were strongly correlated with satellite observations of fire occurrence frequency over the northern Indian peninsula between 2003 and 2012, especially for strong fire events during the pre-monsoon season (March-May). In addition, peaks in LEV concentrations may represent extreme fire events in regions around the Tibetan Plateau. LEV records in the ice core reflect a long-term increasing trend in fire background and also an increase in fire extreme events, across the Tibetan Plateau and its surroundings. We therefore conclude that LEV records in Tibetan ice cores can be used as a powerful tool for calibrating and reconstructing past fire changes over subtropical Asia. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved. |
| 关键词 | Fire variationLevoglucosanIce coreTibetan PlateauSubtropical Asia |
| 学科领域 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS研究方向 | Multidisciplinary Sciences |
| 来源期刊 | SCIENCE BULLETIN
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/112064 |
| 作者单位 | Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | You, Chao,Yao, Tandong,Xu, Chao. Environmental significance of levoglucosan records in a central Tibetan ice core[J]. 中国科学院西北生态环境资源研究院,2019,64(2). |
| APA | You, Chao,Yao, Tandong,&Xu, Chao.(2019).Environmental significance of levoglucosan records in a central Tibetan ice core.SCIENCE BULLETIN,64(2). |
| MLA | You, Chao,et al."Environmental significance of levoglucosan records in a central Tibetan ice core".SCIENCE BULLETIN 64.2(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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