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The role of melting alpine glaciers in mercury export and transport: An intensive sampling campaign in the Qugaqie Basin, inland Tibetan Plateau
Sun, XJ (Sun, Xuejun)1,4; Wang, K (Wang, Kang)1,5; Kang, SC (Kang, Shichang)2,3; Guo, JM (Guo, Junming)1,4; Zhang, GS (Zhang, Guoshuai)1; Huang, J (Huang, Jie)1,3; Cong, ZY (Cong, Zhiyuan)1,3; Sun, SW (Sun, Shiwei)2,4; Zhang, QG (Zhang, Qianggong)1,3; Zhang, QG
2017
Source PublicationENVIRONMENTAL POLLUTION
Volume220Issue:0Pages:936-945
AbstractGlaciers, particularly alpine glaciers, have been receding globally at an accelerated rate in recent decades. The glacial melt-induced release of pollutants (e.g., mercury) and its potential impact on the atmosphere and glacier-fed ecosystems has drawn increasing concerns. During 15th-20th August, 2011, an intensive sampling campaign was conducted in Qugaqie Basin (QB), a typical high mountain glacierized catchment in the inland Tibetan Plateau, to investigate the export and transport of mercury from glacier to runoff. The total mercury (THg) level in Zhadang (ZD) glacier ranged from <1 to 20.8 ng L-1, and was slightly higher than levels measured in glacier melt water and the glacier-fed river. Particulate Hg (PHg) was the predominant form of Hg in all sampled environmental matrices. Mercury concentration in Qugaqie River (QR) was characterized by a clear diurnal variation which is linked to glacier melt. The estimated annual Hg exports by ZD glacier, the upper river basin and the entire QB were 8.76, 7.3 and 157.85 g, respectively, with respective yields of 4.61, 0.99 and 2.74 mu g m(-2) yr(-1). Unique landforms and significant gradients from the glacier terminus to QB estuary might promote weathering and erosion, thereby controlling the transport of total suspended particulates (TSP) and PHg. In comparison with other glacier-fed rivers, QB has a small Hg export yet remarkably high Hg yield, underlining the significant impact of melting alpine glaciers on regional Hg biogeochemical cycles. Such impacts are expected to be enhanced in high altitude regions under the changing climate. (C) 2016 Elsevier Ltd. All rights reserved.
SubtypeArticle
Cooperation Status国内
KeywordNAM CO BASIN ATMOSPHERIC MERCURY SPRINGTIME DEPLETION SPATIAL-DISTRIBUTION ZHADANG GLACIER CLIMATE CHANGES ARCTIC-OCEAN RIVER-BASIN ICE CORE SNOW
Subject Area自然地理学
DOI10.1016/j.envpol.2016.10.079
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences ; Environmental Sciences & Ecology
WOS IDWOS:000390732300020
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8405
Collection图书馆
Corresponding AuthorZhang, QG
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China.
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China.
3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China.
4.Univ CAS, Beijing 100049, Peoples R China.
5.Univ Manitoba, Dept Geog & Environm, Ctr Earth Observat Sci, Winnipeg, MB R3T 2N2, Canada.
Recommended Citation
GB/T 7714
Sun, XJ ,Wang, K ,Kang, SC ,et al. The role of melting alpine glaciers in mercury export and transport: An intensive sampling campaign in the Qugaqie Basin, inland Tibetan Plateau[J]. ENVIRONMENTAL POLLUTION,2017,220(0):936-945.
APA Sun, XJ .,Wang, K .,Kang, SC .,Guo, JM .,Zhang, GS .,...&Zhang, QG.(2017).The role of melting alpine glaciers in mercury export and transport: An intensive sampling campaign in the Qugaqie Basin, inland Tibetan Plateau.ENVIRONMENTAL POLLUTION,220(0),936-945.
MLA Sun, XJ ,et al."The role of melting alpine glaciers in mercury export and transport: An intensive sampling campaign in the Qugaqie Basin, inland Tibetan Plateau".ENVIRONMENTAL POLLUTION 220.0(2017):936-945.
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