Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075571 |
Permafrost Stores a Globally Significant Amount of Mercury | |
Schuster, Paul F.1; Schaefer, Kevin M.2; Aiken, George R.1; Antweiler, Ronald C.1; Dewild, John F.3; Gryziec, Joshua D.4; Gusmeroli, Alessio5; Hugelius, Gustaf6; Jafarov, Elchin7; Krabbenhoft, David P.3; Liu, Lin8; Herman-Mercer, Nicole1; Mu, Cuicui9; Roth, David A.1; Schaefer, Tim10; Striegl, Robert G.1; Wickland, Kimberly P.1; Zhang, Tingjun9 | |
2018-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:3页码:1463-1471 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Sweden; Peoples R China |
英文摘要 | Changing climate in northern regions is causing permafrost to thaw with major implications for the global mercury (Hg) cycle. We estimated Hg in permafrost regions based on in situ measurements of sediment total mercury (STHg), soil organic carbon (SOC), and the Hg to carbon ratio (R-HgC) combined with maps of soil carbon. We measured a median STHg of 43 +/- 30 ng Hg g soil(-1) and a median R-HgC of 1.6 +/- 0.9 mu g Hg g C-1, consistent with published results of STHg for tundra soils and 11,000 measurements from 4,926 temperate, nonpermafrost sites in North America and Eurasia. We estimate that the Northern Hemisphere permafrost regions contain 1,656 +/- 962 Gg Hg, of which 793 +/- 461 Gg Hg is frozen in permafrost. Permafrost soils store nearly twice as much Hg as all other soils, the ocean, and the atmosphere combined, and this Hg is vulnerable to release as permafrost thaws over the next century. Existing estimates greatly underestimate Hg in permafrost soils, indicating a need to reevaluate the role of the Arctic regions in the global Hg cycle. |
英文关键词 | mercury permafrost storage thawing |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426161800032 |
WOS关键词 | ATMOSPHERIC MERCURY ; ELEMENTAL MERCURY ; BOREAL FOREST ; YUKON RIVER ; SOIL CARBON ; NORTHERN ALASKA ; CLIMATE-CHANGE ; EMISSIONS ; SEDIMENT ; STORAGE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/25854 |
专题 | 气候变化 |
作者单位 | 1.US Geol Survey, Natl Res Program, Boulder, CO 80303 USA; 2.Univ Colorado Boulder, Natl Snow & Ice Data Ctr, Cooperat Inst Res Environm Sci, Boulder, CO USA; 3.US Geol Survey, Wisconsin Water Sci Ctr, Mercury Res Lab, Middleton, WI USA; 4.Environm Serv Lab, Broomfield, CO USA; 5.Univ Alaska, Int Arctic Res Ctr, Fairbanks, AK 99701 USA; 6.Stockholm Univ, Dept Phys Geog, Stockholm, Sweden; 7.Los Alamos Natl Lab, Computat Earth Sci, Los Alamos, NM USA; 8.Chinese Univ Hong Kong, Earth Syst Sci Programme, Fac Sci, Hong Kong, Hong Kong, Peoples R China; 9.Lanzhou Univ, Key Lab Western Chinas Environm Syst MOE, Coll Earth & Environm Sci, Lanzhou, Gansu, Peoples R China; 10.Galmont Consulting, Chicago, IL USA |
推荐引用方式 GB/T 7714 | Schuster, Paul F.,Schaefer, Kevin M.,Aiken, George R.,et al. Permafrost Stores a Globally Significant Amount of Mercury[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(3):1463-1471. |
APA | Schuster, Paul F..,Schaefer, Kevin M..,Aiken, George R..,Antweiler, Ronald C..,Dewild, John F..,...&Zhang, Tingjun.(2018).Permafrost Stores a Globally Significant Amount of Mercury.GEOPHYSICAL RESEARCH LETTERS,45(3),1463-1471. |
MLA | Schuster, Paul F.,et al."Permafrost Stores a Globally Significant Amount of Mercury".GEOPHYSICAL RESEARCH LETTERS 45.3(2018):1463-1471. |
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