The interplay between atmospheric deposition and soil dynamics of mercury in Swiss and Chinese boreal forests: A comparison study | |
Chaoyue Chen; Jen-How Huang; Katrin Meusburger; Kai Li; Xuewu Fu![]() ![]() | |
2022 | |
Source Publication | Chaoyue ChenJen-How HuangXinbin Feng
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Volume | 307Pages:119483 |
Abstract | Taking advantage of the different histories of Hg deposition in Davos Seehornwald in E-Switzerland and Changbai Mountain in NE-China, the influence of atmospheric deposition on Hg soil dynamics in forest soil profiles was investigated. Today, Hg fluxes in bulk precipitation were similar, and soil profiles were generally sinks for atmospherically deposited Hg at both sites. Noticeably, a net release of 2.07 mu g Hg m(-2) yr(-1) from the Bs horizon (Podzol) in Seehornwald was highlighted, where Hg concentration (up to 73.9 mu g kg(-1)) and soil storage (100 mg m(-3)) peaked. Sequential extraction revealed that organic matter and crystalline Fe and Al hydr (oxide) associated Hg decreased in the E horizon but increased in the Bs horizon as compared to the Ah horizon, demonstrating the coupling of Hg dynamics with the podzolisation process and accumulation of legacy Hg deposited last century in the Bs horizon. The mor humus in Seehornwald allowed Hg enrichment in the forest floor (182-269 mu g kg(-1)). In Changbai Mountain, the Hg concentrations in the Cambisol surface layer with mull humus were markedly lower (< 148 mu g kg(-1)), but with much higher Hg soil storage (54-120 mg m(-3)) than in the Seehornwald forest floor (18-27 mg m(-3)). Thus, the vertical distribution pattern of Hg was influenced by humus form and soil type. The concentrations of Hg in soil porewater in Seehornwald (3.4-101 ng L-1) and in runoff of Changbai Mountain (1.26-5.62 ng (-1)) were all low. Moreover, the pools of readily extractable Hg in the soils at both sites were all < 2% of total Hg. Therefore, the potential of Hg release from the forest soil profile to the adjacent aquatic environment is currently low at both sites. |
Keyword | Mercury atmospheric Deposition forest Soil humus Type podzolisation |
DOI | 10.1016/j.envpol.2022.119483 |
URL | 查看原文 |
Indexed By | SCI |
Language | 英语 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/13478 |
Collection | 环境地球化学国家重点实验室 |
Affiliation | 1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China 2.University of Chinese Academy of Sciences, Beijing, 100049, China 3.Center for Excellence in Quaternary Science and Global Change, Chinese Academy of Sciences, Xian, 710061, China 4.Swiss Federal Institute for Forest, Snow and Landscape Research, 8903, Birmensdorf, Switzerland 5.University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany 6.International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan, 173212, Himachal Pradesh, India 7.Environmental Geosciences, University of Basel, 4056, Basel, Switzerland |
Recommended Citation GB/T 7714 | Chaoyue Chen,Jen-How Huang,Katrin Meusburger,et al. The interplay between atmospheric deposition and soil dynamics of mercury in Swiss and Chinese boreal forests: A comparison study[J]. Chaoyue ChenJen-How HuangXinbin Feng,2022,307:119483. |
APA | Chaoyue Chen.,Jen-How Huang.,Katrin Meusburger.,Kai Li.,Xuewu Fu.,...&Xinbin Feng.(2022).The interplay between atmospheric deposition and soil dynamics of mercury in Swiss and Chinese boreal forests: A comparison study.Chaoyue ChenJen-How HuangXinbin Feng,307,119483. |
MLA | Chaoyue Chen,et al."The interplay between atmospheric deposition and soil dynamics of mercury in Swiss and Chinese boreal forests: A comparison study".Chaoyue ChenJen-How HuangXinbin Feng 307(2022):119483. |
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