Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland
Soils of the Arctic sea coasts are one of the least studied due to the complex logistical accessibility of the region, as well as the severe climatic conditions. The genesis of these soils is determined by several factors of soil formation simultaneously—cryogenesis, the influence of river alluvial...
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ftdoajarticles:oai:doaj.org/article:59dd30a0a8794ac098c92f3b22f1740e 2023-05-15T15:12:00+02:00 Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland Vyacheslav Polyakov Alexey Lupachev Stanislav Gubin Evgeny Abakumov 2022-12-01T00:00:00Z https://doi.org/10.3390/agronomy13010048 https://doaj.org/article/59dd30a0a8794ac098c92f3b22f1740e EN eng MDPI AG https://www.mdpi.com/2073-4395/13/1/48 https://doaj.org/toc/2073-4395 doi:10.3390/agronomy13010048 2073-4395 https://doaj.org/article/59dd30a0a8794ac098c92f3b22f1740e Agronomy, Vol 13, Iss 48, p 48 (2022) 13 C NMR spectroscopy humic acids maritime soils Agriculture S article 2022 ftdoajarticles https://doi.org/10.3390/agronomy13010048 2023-01-22T01:29:20Z Soils of the Arctic sea coasts are one of the least studied due to the complex logistical accessibility of the region, as well as the severe climatic conditions. The genesis of these soils is determined by several factors of soil formation simultaneously—cryogenesis, the influence of river alluvial processes, as well as the tidal influence of the sea. The paper presents data on the morphological structure of soils formed on the seacoast of the East-Siberian Sea (Kolyma Lowland, North Yakutia). Under the influence of cryogenesis and sea water tidal input, marsh soils are formed, with a relatively high level of salinity and the development of gleyization. Autochthonous and allochthonous soil organic matter play a leading role in marsh soil formation here, including the possible accumulation and biochemical transformation of incoming pollutants (e.g., hydrocarbons). The main objective of the study was to evaluate the soil organic matter genesis and alteration under the influence of tidal processes in coastal permafrost-affected soils as well as to obtain the previously unknown characteristics of the structural and elemental composition of different fractions of organic matter. The elemental composition and 13 C NMR spectroscopy of humic acids were analyzed. It was revealed that humic acids extracted from the studied marsh soils accumulate up to 50% C and 4% N. Active processes of dehydrogenation are noted in HAs molecules, which indicates a relatively low degree of aliphatic structure development. According to 13 C NMR spectroscopy, it was revealed that up to 45% of aromatic structural fragments accumulate in marsh soils, indicating a relatively high degree of organic matter stabilization and resistance to biodegradation. Article in Journal/Newspaper Arctic East Siberian Sea permafrost Yakutia Directory of Open Access Journals: DOAJ Articles Arctic Kolyma ENVELOPE(161.000,161.000,69.500,69.500) East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Agronomy 13 1 48 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
13 C NMR spectroscopy humic acids maritime soils Agriculture S |
spellingShingle |
13 C NMR spectroscopy humic acids maritime soils Agriculture S Vyacheslav Polyakov Alexey Lupachev Stanislav Gubin Evgeny Abakumov Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland |
topic_facet |
13 C NMR spectroscopy humic acids maritime soils Agriculture S |
description |
Soils of the Arctic sea coasts are one of the least studied due to the complex logistical accessibility of the region, as well as the severe climatic conditions. The genesis of these soils is determined by several factors of soil formation simultaneously—cryogenesis, the influence of river alluvial processes, as well as the tidal influence of the sea. The paper presents data on the morphological structure of soils formed on the seacoast of the East-Siberian Sea (Kolyma Lowland, North Yakutia). Under the influence of cryogenesis and sea water tidal input, marsh soils are formed, with a relatively high level of salinity and the development of gleyization. Autochthonous and allochthonous soil organic matter play a leading role in marsh soil formation here, including the possible accumulation and biochemical transformation of incoming pollutants (e.g., hydrocarbons). The main objective of the study was to evaluate the soil organic matter genesis and alteration under the influence of tidal processes in coastal permafrost-affected soils as well as to obtain the previously unknown characteristics of the structural and elemental composition of different fractions of organic matter. The elemental composition and 13 C NMR spectroscopy of humic acids were analyzed. It was revealed that humic acids extracted from the studied marsh soils accumulate up to 50% C and 4% N. Active processes of dehydrogenation are noted in HAs molecules, which indicates a relatively low degree of aliphatic structure development. According to 13 C NMR spectroscopy, it was revealed that up to 45% of aromatic structural fragments accumulate in marsh soils, indicating a relatively high degree of organic matter stabilization and resistance to biodegradation. |
format |
Article in Journal/Newspaper |
author |
Vyacheslav Polyakov Alexey Lupachev Stanislav Gubin Evgeny Abakumov |
author_facet |
Vyacheslav Polyakov Alexey Lupachev Stanislav Gubin Evgeny Abakumov |
author_sort |
Vyacheslav Polyakov |
title |
Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland |
title_short |
Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland |
title_full |
Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland |
title_fullStr |
Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland |
title_full_unstemmed |
Soil Organic Matter of Tidal Marsh Permafrost-Affected Soils of Kolyma Lowland |
title_sort |
soil organic matter of tidal marsh permafrost-affected soils of kolyma lowland |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/agronomy13010048 https://doaj.org/article/59dd30a0a8794ac098c92f3b22f1740e |
long_lat |
ENVELOPE(161.000,161.000,69.500,69.500) ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Kolyma East Siberian Sea |
geographic_facet |
Arctic Kolyma East Siberian Sea |
genre |
Arctic East Siberian Sea permafrost Yakutia |
genre_facet |
Arctic East Siberian Sea permafrost Yakutia |
op_source |
Agronomy, Vol 13, Iss 48, p 48 (2022) |
op_relation |
https://www.mdpi.com/2073-4395/13/1/48 https://doaj.org/toc/2073-4395 doi:10.3390/agronomy13010048 2073-4395 https://doaj.org/article/59dd30a0a8794ac098c92f3b22f1740e |
op_doi |
https://doi.org/10.3390/agronomy13010048 |
container_title |
Agronomy |
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13 |
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1 |
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48 |
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1766342761725820928 |