Temperature sensitivity of gaseous elemental mercury in the active layer of the Qinghai-Tibet Plateau permafrost
文献类型：期刊论文
| 作者 | Ci, Zhijia; Peng, Fei; Xue, Xian; Zhang, Xiaoshan |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 238页码:508-515 |
| 关键词 | Gaseous elemental mercury Temperature sensitivity Permafrost Qinghai-Tibet plateau |
| ISSN号 | 0269-7491 |
| 文献子类 | Article |
| 英文摘要 | Soils represent the single largest mercury (Hg) reservoir in the global environment, indicating that a tiny change of Hg behavior in soil ecosystem could greatly affect the global Hg cycle. Climate warming is strongly altering the structure and functions of permafrost and then would influence the Hg cycle in permafrost soils. However, Hg biogeochemistry in climate-sensitive permafrost is poorly investigated. Here we report a data set of soil Hg (0) concentrations in four different depths of the active layer in the Qinghai-Tibet Plateau permafrost. We find that soil Hg (0) concentrations exhibited a strongly positive and exponential relationship with temperature and showed different temperature sensitivity under the frozen and unfrozen condition. We conservatively estimate that temperature increases following latest temperature scenarios of the IPCC could result in up to a 54.9% increase in Hg (0) concentrations in surface permafrost soils by 2100. Combining the simultaneous measurement of air soil Hg (0) exchange, we find that enhanced Hg (0) concentrations in upper soils could favor Hg (0) emissions from surface soil. Our findings indicate that Hg (0) emission could be stimulated by permafrost thawing in a warmer world. (C) 2018 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/40790]  |
| 专题 | 生态环境研究中心_大气环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Ci, Zhijia,Peng, Fei,Xue, Xian,et al. Temperature sensitivity of gaseous elemental mercury in the active layer of the Qinghai-Tibet Plateau permafrost[J]. ENVIRONMENTAL POLLUTION,2018,238:508-515. |
| APA | Ci, Zhijia,Peng, Fei,Xue, Xian,&Zhang, Xiaoshan.(2018).Temperature sensitivity of gaseous elemental mercury in the active layer of the Qinghai-Tibet Plateau permafrost.ENVIRONMENTAL POLLUTION,238,508-515. |
| MLA | Ci, Zhijia,et al."Temperature sensitivity of gaseous elemental mercury in the active layer of the Qinghai-Tibet Plateau permafrost".ENVIRONMENTAL POLLUTION 238(2018):508-515. |
入库方式： OAI收割
来源：生态环境研究中心
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