Distribution and variation of mercury in frozen soils of a high-altitude permafrost region on the northeastern margin of the Tibetan Plateau
文献类型：期刊论文
| 作者 | Sun, SW (Sun, Shiwei)1; Kang, SC (Kang, Shichang)1,2; Huang, J (Huang, Jie)2,3,4; Chen, SY (Chen, Shengyun)1; Zhang, QG (Zhang, Qianggong)2,3; Guo, JM (Guo, Junming)3,4; Liu, WJ (Liu, Wenjie)1; Neupane, B (Neupane, Bigyan)1; Qin, DH (Qin, Dahe)1; Kang, SC |
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2017 |
| 卷号 | 24期号:17页码:15078-15088 |
| 关键词 | ATMOSPHERIC MERCURY SPATIAL-DISTRIBUTION CLIMATE-CHANGE FOREST SOILS CHINA DEPOSITION SPECIATION MOUNTAIN GLACIER BASIN |
| DOI | 10.1007/s11356-017-9088-0 |
| 文献子类 | Article |
| 英文摘要 | The Tibetan Plateau (TP) is home to the largest permafrost bodies at low- and mid-latitudes, yet little is known about the distribution and variation of mercury (Hg) in frozen soil of the permafrost regions. In this study, extensive soil sampling campaigns were carried out in 23 soil pits from 12 plots in a high-altitude permafrost region of the Shule River Basin, northeastern TP. Hg distribution, variation, and their dependences on soil properties were analyzed. The results have revealed that total Hg (THg) concentrations were low ranging from 6.3 to 29.1 ng g(-1). A near-surface peak of THg concentrations followed by a continuous decrease were observed on the vertical profiles of most soil pits. Significant positive relationships among THg concentrations, soil organic carbon (SOC) contents, and silty fractions were observed, indicating that SOC content and silty fraction are two dominant factors influencing the spatial distribution of THg. THg concentrations in soils showed a decreasing trend with altitude, which was probably attributed to a lower soil potential to Hg accumulation under the condition of lower SOC contents and silty fractions at high altitudes. Approximately, 130.6 t Hg in soils (0-60 cm) was estimated and a loss of 64.2% of Hg from the highly stable and stable permafrost (H-SP) region via permafrost degradation was expected in the upstream regions of the Shule River Basin, indicating that the large areas of permafrost regions may become an important source of global Hg emission as a result of the ongoing widespread permafrost degradation. |
| 学科主题 | 自然地理学 |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000402997700046 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/8223]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Kang, SC |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Qilian Shan Stn Glaciol & Ecol Environm, Donggang West Rd 320, Lanzhou 730000, Peoples R China. [Sun, Shiwei; Kang, Shichang; Neupane, Bigyan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China. 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China. 3.Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China. 4.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, FI-50130 Mikkeli, Finland. |
| 推荐引用方式 GB/T 7714 | Sun, SW ,Kang, SC ,Huang, J ,et al. Distribution and variation of mercury in frozen soils of a high-altitude permafrost region on the northeastern margin of the Tibetan Plateau[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(17):15078-15088. |
| APA | Sun, SW .,Kang, SC .,Huang, J .,Chen, SY .,Zhang, QG .,...&Kang, SC.(2017).Distribution and variation of mercury in frozen soils of a high-altitude permafrost region on the northeastern margin of the Tibetan Plateau.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(17),15078-15088. |
| MLA | Sun, SW ,et al."Distribution and variation of mercury in frozen soils of a high-altitude permafrost region on the northeastern margin of the Tibetan Plateau".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.17(2017):15078-15088. |
入库方式： OAI收割
来源：青藏高原研究所
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