IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Moss facilitating mercury, lead and cadmium enhanced accumulation in organic soils over glacial erratic at Mt. Gongga, China
Wang, Xun1,2; Yuan, Wei2; Feng, Xinbin2; Wang, Dingyong1; Luo, Ji3,4
Corresponding AuthorFeng, Xinbin(fengxinbin@vip.skleg.cn)
2019-11-01
Source PublicationENVIRONMENTAL POLLUTION
ISSN0269-7491
Volume254Pages:112974
SubtypeArticle
Contribution Rank3
AbstractMoss is usually as an initial colonizer in alpine glacier retreated regions. We hypothesized that moss can significantly facilitate the toxic metals accumulation in alpine ecosystems based on its strong ability of absorption and the role in soil development. Hence, we investigated the trace element pool sizes and enrichment factors, especially for mercury (Hg) by using the Hg isotopic compositions to determine the source contributions in a moss-dominated ecosystem over glacial erratic in Eastern Tibetan Plateau. Results show that Hg, lead (Pb) and cadmium (Cd) are highly enriched in organic soils. Specifically, Cd concentration is 5-20 times higher than the safety limit of the acid soil (pH <= 5.5) in China. Atmospheric depositions dominantly contribute to the Pb and Cd sources in organic soils, and followed by the moraine particles influences. The lowering pH in organic soils increasing with glacial retreated time results in the desorption of Cd in organic soils. Atmospheric Hg-0 uptake by moss predominantly contributes to the Hg sources in organic soils. The average Pb accumulation rate over last 125-year is about 5.6 +/- 1.0 mg m(-2) yr(-1), and for Cd is 0.4 +/- 0.1 mg m(-2) yr(-1), and for Hg-0 is 27.6 +/- 3.2 mu g m(-2) yr(-1). These elevated accumulation rates are caused by the high moss biomass and elevated atmospheric Hg, Pb and Cd pollution levels in China and neighbouring regions. Our study indicates that the moss not only as the bioindicator, but also plays an important role in the hazardous metal biogeochemical cycling in alpine regions. (C) 2019 Elsevier Ltd. All rights reserved.
KeywordGlacier retreat Heavy metal accumulation Moss uptake Mercury isotopes
DOI10.1016/j.envpol.2019.112974
Indexed BySCI
WOS KeywordSTABLE-ISOTOPE FRACTIONATION ; GASEOUS ELEMENTAL MERCURY ; FOREST FLOOR IMPLICATIONS ; ATMOSPHERIC MERCURY ; HEAVY-METALS ; PRIMARY SUCCESSION ; SUBPOLAR GLACIERS ; TIBETAN PLATEAU ; TRACE-ELEMENTS ; HIGH-MOUNTAIN
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000488887500082
Funding OrganizationNatural Science Foundation of China ; Strategic Priority Research Programs of the Chinese Academy of Sciences
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/31343
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorFeng, Xinbin
Affiliation1.Southwest Univ, Coll Resources & Environm, Chongqing 400715, Peoples R China;
2.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Guizhou, Peoples R China;
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China;
4.Minist Water Conservancy & Power, Chengdu 610041, Sichuan, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Wang, Xun,Yuan, Wei,Feng, Xinbin,et al. Moss facilitating mercury, lead and cadmium enhanced accumulation in organic soils over glacial erratic at Mt. Gongga, China[J]. ENVIRONMENTAL POLLUTION,2019,254:112974.
APA Wang, Xun,Yuan, Wei,Feng, Xinbin,Wang, Dingyong,&Luo, Ji.(2019).Moss facilitating mercury, lead and cadmium enhanced accumulation in organic soils over glacial erratic at Mt. Gongga, China.ENVIRONMENTAL POLLUTION,254,112974.
MLA Wang, Xun,et al."Moss facilitating mercury, lead and cadmium enhanced accumulation in organic soils over glacial erratic at Mt. Gongga, China".ENVIRONMENTAL POLLUTION 254(2019):112974.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Xun]'s Articles
[Yuan, Wei]'s Articles
[Feng, Xinbin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Xun]'s Articles
[Yuan, Wei]'s Articles
[Feng, Xinbin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Xun]'s Articles
[Yuan, Wei]'s Articles
[Feng, Xinbin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.