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Distribution and variation of mercury in frozen soils of a high-altitude permafrost region on the northeastern margin of the Tibetan Plateau
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
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
2017
Volume24Issue:17Pages:15078-15088
DOI10.1007/s11356-017-9088-0
AbstractThe 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.
Subject Area自然地理学
WOS IDWOS:000402997700046
Language英语
Indexed BySCI
KeywordATMOSPHERIC MERCURY SPATIAL-DISTRIBUTION CLIMATE-CHANGE FOREST SOILS CHINA DEPOSITION SPECIATION MOUNTAIN GLACIER BASIN
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences ; Environmental Sciences & Ecology
Cooperation Status国际
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8223
Collection图书馆
Corresponding AuthorKang, SC
Affiliation1.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.
Recommended Citation
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.
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