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Opposing spatial trends in methylmercury and total mercury along a peatland chronosequence trophic gradient

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成果类型:
期刊论文
作者:
Wang, Baolin;Nilsson, Mats B.;Eklof, Karin;Hu, Haiyan*;Ehnvall, Betty;...
通讯作者:
Hu, Haiyan
作者机构:
[Eklof, Karin; Bertilsson, Stefan; Bishop, Kevin; Akeblom, Staffan; Wang, Baolin] Swedish Univ Agr Sci, Dept Aquat Sci & Assessment, SE-75007 Uppsala, Sweden.
[Skyllberg, Ulf; Nilsson, Mats B.; Ehnvall, Betty] Swedish Univ Agr Sci, Dept Forest Ecol & Management, SE-90183 Umea, Sweden.
[Hu, Haiyan] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China.
[Bertilsson, Stefan; Hu, Haiyan] Uppsala Univ, Dept Ecol & Genet, Limnol & Sci Life Lab, SE-75236 Uppsala, Sweden.
[Bravo, Andrea G.] Inst Ciencies Mar ICM CSIC, Dept Marine Biol & Oceanog, Pg Maritim Barceloneta 37-49, E-08003 Barcelona, Catalunya, Spain.
通讯机构:
[Hu, Haiyan] C
Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China.
语种:
英文
关键词:
Peatland;Mercury;Methylation;Methylmercury;Chronosequence
期刊:
Science of The Total Environment
ISSN:
0048-9697
年:
2020
卷:
718
页码:
137306-
基金类别:
China Scholarship Council (CSC)China Scholarship Council; Sino-Swedish Mercury Management Research Framework [SMaReF: VR2013-6978]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41573078, 41303098]; Swedish Research Council FormasSwedish Research CouncilSwedish Research Council Formas [2106-00896]
机构署名:
本校为其他机构
院系归属:
城市与旅游学院
摘要:
Peatlands are abundant elements of boreal landscapes where inorganic mercury (IHg) can be transformed into bioaccumulating and highly toxic methylmercury (MeHg). We studied fifteen peatlands divided into three age lasses (young, intermediate and old) along a geographically constrained chronosequence to determine the role of biogeochemical factors and nutrient availability in controlling the formation of MeHg. In the 10 cm soil layer just below the average annual growing season water table, concentrations of MeHg and %MeHg (of total Hg) were higher in younger, more mesotrophic peatlands than in...

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