IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Using Mercury Isotopes To Understand Mercury Accumulation in the Montane Forest Floor of the Eastern Tibetan Plateau
Wang, Xun1,2; Luo, Ji3,4; Yin, Runsheng5,6; Yuan, Wei1,2; Lin, Che-Jen1,7; Sommar, Jonas1; Feng, Xinbin1; Wang, Haiming3,4; Lin, Cynthia8
Corresponding AuthorFeng, Xinbin
2017-01-17
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume51Issue:2Pages:801-809
SubtypeArticle
AbstractMercury accumulation in montane forested areas plays an important role in global Hg cycling. In this study, we measured stable Hg isotopes in soil and litter samples to understand Hg accumulation on the forest floor along the eastern fringe of the Tibetan Plateau (TP). The low atmospheric Hg inputs lead to the small Hg pool size (23 +/- 9 mg m(-2) in 0-60 cm soil horizon), up to 1 order of magnitude lower than to -0.05 parts per thousand) in the litter at low elevations (3100 to 3600 m) suggests an influence of local anthropogenic emissions, whereas the more significant negative Delta Hg-199 (-0.38 to -0.15 parts per thousand) at high elevations (3700 to 4300 m) indicates impact from long-range transport. Hg input from litter is more important than wet deposition to Hg accumulation on the forest floor, as evidenced by the negative Delta Hg-199 found in the surface soil samples. Correlation analyses of Delta Hg-199 versus total carbon and leaf area index suggest that litter biomass production is a predominant factor in atmospheric Hg inputs to the forest floor. Precipitation and temperature show indirect effects on Hg accumulation by influencing litter biomass production in the eastern TP.
KeywordGaseous Elemental Mercury Timberline Coniferous Forests Western United-states Atmospheric Mercury Spatial-distribution Stable-isotopes Wet Deposition Southwestern China Elevation Gradient Free Troposphere
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1021/acs.est.6b03806
WOS Subject ExtendedEngineering ; Environmental Sciences & Ecology
Indexed BySCI
WOS KeywordGASEOUS ELEMENTAL MERCURY ; TIMBERLINE CONIFEROUS FORESTS ; WESTERN UNITED-STATES ; ATMOSPHERIC MERCURY ; SPATIAL-DISTRIBUTION ; STABLE-ISOTOPES ; WET DEPOSITION ; SOUTHWESTERN CHINA ; ELEVATION GRADIENT ; FREE TROPOSPHERE
Language英语
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000392457700009
Funding OrganizationNational 973 Program of China(2013CB430003) ; National Natural Science Foundation of China(41303014 ; 41471416)
Citation statistics
Cited Times:50[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18405
Collection山地表生过程与生态调控重点实验室
山区发展研究中心
Affiliation1.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China
4.Minist Water Conservancy & Power, Chengdu 610041, Peoples R China
5.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Peoples R China
6.Univ Wisconsin, Environm Chem & Technol Program, Madison, WI 53706 USA
7.Lamar Univ, Ctr Adv Water & Air Qual, Beaumont, TX 77710 USA
8.Univ Texas Austin, McKetta Dept Chem Engn, Austin, TX 78712 USA
Recommended Citation
GB/T 7714
Wang, Xun,Luo, Ji,Yin, Runsheng,et al. Using Mercury Isotopes To Understand Mercury Accumulation in the Montane Forest Floor of the Eastern Tibetan Plateau[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(2):801-809.
APA Wang, Xun.,Luo, Ji.,Yin, Runsheng.,Yuan, Wei.,Lin, Che-Jen.,...&Lin, Cynthia.(2017).Using Mercury Isotopes To Understand Mercury Accumulation in the Montane Forest Floor of the Eastern Tibetan Plateau.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(2),801-809.
MLA Wang, Xun,et al."Using Mercury Isotopes To Understand Mercury Accumulation in the Montane Forest Floor of the Eastern Tibetan Plateau".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.2(2017):801-809.
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