globalchange  > 全球变化的国际研究计划
DOI: 10.1016/j.scitotenv.2019.05.178
WOS记录号: WOS:000471888900064
论文题名:
Distribution of trace and major elements in subarctic ecosystem soils: Sources and influence of vegetation
作者: Agnan, Yannick1; Courault, Romain2; Alexis, Marie A.1; Zanardo, Tony1; Cohen, Marianne2; Sauvage, Margaux3; Castrec-Rouelle, Maryse1
通讯作者: Agnan, Yannick
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
ISSN: 0048-9697
EISSN: 1879-1026
出版年: 2019
卷: 682, 页码:650-662
语种: 英语
英文关键词: Trace elements ; Soil ; Ecosystem ; Vegetation ; Subarctic ; Sources
WOS关键词: RARE-EARTH-ELEMENTS ; HEAVY-METALS ; TEMPORAL TRENDS ; ORGANIC-MATTER ; AIR-POLLUTION ; SURFACE SOILS ; TUNDRA ; SELENIUM ; CONTAMINANTS ; PERMAFROST
WOS学科分类: Environmental Sciences
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Artic and subarctic environments are particularly sensitive to climate change with a faster warming compared to other latitudes. Vegetation is changing but its role on the biogeochemical cycling is poorly understood. In this study, we evaluated the distribution of trace elements in subarctic soils from different land covers at Abisko, northern Sweden: grassland, moor, broad-leaved forest, and peat bog. Using various multivariate analysis approaches, results indicated a spatial heterogeneity with a strong influence of soil horizon classes considered: lithogenic elements (e.g., Al, Cr, Ti) were accumulated in mineral horizon classes and surface process-influenced elements (e.g., Cd, Cu, Se) in organic horizon classes. Atmospheric influences included contamination by both local mines (e.g., Cu, Fe, Ni) and regional or long-range atmospheric transport (e.g.. Cd, Pb, Zn). A non-negative matrix factorization was used to estimate, for each element, the contribution of various sources identified. For the first time, a comparison between geochemical and ecological data was performed to evaluate the influence of vegetation on element distribution. Apart from soil pH that could control dynamics of As, Cu, and Se, two vegetation classes were reported to be correlated to geochemical factors: forbs and shrubs/dwarf shrubs probably due to their annual vs. perennial activities, respectively. Since these are considered as the main vegetation classes that quickly evolve with climate change, we expect to see modifications in trace element biogeochemical cycling in the future. (C) 2019 Elsevier B.V. All rights reserved.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/146842
Appears in Collections:全球变化的国际研究计划

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作者单位: 1.Sorbonne Univ, CNRS, EPHE, UMR METIS, F-75252 Paris, France
2.Sorbonne Univ, CNRS, FRE ENeC, F-75006 Paris, France
3.Univ Paris Diderot, Pole Image, F-75013 Paris, France

Recommended Citation:
Agnan, Yannick,Courault, Romain,Alexis, Marie A.,et al. Distribution of trace and major elements in subarctic ecosystem soils: Sources and influence of vegetation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019-01-01,682:650-662
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