TY - JOUR

T1 - Content of trace elements in selected permafrost-affected soils of Yamal region with different functional load

AU - Alekseev, Ivan

AU - Shamilishvilly, George

AU - Abakumov, Evgeny

N1 - Funding Information: This study was supported by Russian Foundation for Basic Research, project No. 16-34-60010 and a grant of Saint-Petersburg State University “Urbanized ecosystems of the Russian Arctic: dynamics, state and sustainable development” please add this reference. Publisher Copyright: © 2018 Alfred Wegener Institut fur Polar- und Meeresforschung. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2018

Y1 - 2018

N2 - Soils are an important component of polar ecosystems and play a key role in their functioning. They have a significant role in processes of accumulation, mobilization, redistribution of chemical, and especially, trace elements in landscapes and ecosystems. Both anthropogenic factors and climate change may affect biogeochemistry of soils in permafrost-affected landscapes, which are considered as highly sensitive to climate change and anthropogenic forcing. Involvement of additional portions of trace elements into the soils due to permafrost degradation and thawing is considered as one the main risk factors for natural environments in polar regions. Therefore, trace elements contents in soils of urban areas (Kharsaim, Aksarka, Salekhard, Harp and Labytnangi) and natural environments of the Yamal region (Ust'Uribey and Beliy island) were investigated. Soil samples from Kharp settlement show the highest content for Cu, Pb, Zn, Ni, connected with existing galvanizing plant “Kongor-chrome”. The highest values for Pb occur in soil samples from Aksarka and Labytnangi key plots. Soil samples from Kharsaim and Kharp key plots are characterized by the highest median values for Zn. Analysis of trace elements content show poorly manifested eluvial-illuvial differentiation of soil profiles of natural soils. The highest content for most of the studied trace elements has been revealed in topsoil horizons. Trace elements content in soil samples collected from urban environments ranged significantly high due to differences in the functional zones of the sites and a predominant anthropogenic source of trace elements additions. The results of statistical analysis show that statistically significant differences in Ni and Cu content in soils appear only between Kharp settlement and each of natural sites Ust'-Uribey and Beliy Island. Almost all studied urban soils reveal significant differences in Pb, Zn, As, and Fe contents between natural sites.

AB - Soils are an important component of polar ecosystems and play a key role in their functioning. They have a significant role in processes of accumulation, mobilization, redistribution of chemical, and especially, trace elements in landscapes and ecosystems. Both anthropogenic factors and climate change may affect biogeochemistry of soils in permafrost-affected landscapes, which are considered as highly sensitive to climate change and anthropogenic forcing. Involvement of additional portions of trace elements into the soils due to permafrost degradation and thawing is considered as one the main risk factors for natural environments in polar regions. Therefore, trace elements contents in soils of urban areas (Kharsaim, Aksarka, Salekhard, Harp and Labytnangi) and natural environments of the Yamal region (Ust'Uribey and Beliy island) were investigated. Soil samples from Kharp settlement show the highest content for Cu, Pb, Zn, Ni, connected with existing galvanizing plant “Kongor-chrome”. The highest values for Pb occur in soil samples from Aksarka and Labytnangi key plots. Soil samples from Kharsaim and Kharp key plots are characterized by the highest median values for Zn. Analysis of trace elements content show poorly manifested eluvial-illuvial differentiation of soil profiles of natural soils. The highest content for most of the studied trace elements has been revealed in topsoil horizons. Trace elements content in soil samples collected from urban environments ranged significantly high due to differences in the functional zones of the sites and a predominant anthropogenic source of trace elements additions. The results of statistical analysis show that statistically significant differences in Ni and Cu content in soils appear only between Kharp settlement and each of natural sites Ust'-Uribey and Beliy Island. Almost all studied urban soils reveal significant differences in Pb, Zn, As, and Fe contents between natural sites.

KW - почвы

KW - окружающая среда

KW - тяжелые металлы

KW - Ямал

KW - функциональные зоны

UR - http://www.scopus.com/inward/record.url?scp=85083973782&partnerID=8YFLogxK

U2 - 10.2312/polarforschung.88.2.125

DO - 10.2312/polarforschung.88.2.125

M3 - Article

AN - SCOPUS:85083973782

VL - 88

SP - 125

EP - 133

JO - Polarforschung

JF - Polarforschung

SN - 0032-2490

IS - 2

ER -