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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Published in:Agronomy
Main Authors: Vyacheslav Polyakov, Alexey Lupachev, Stanislav Gubin, Evgeny Abakumov
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2022
Subjects:
S
Online Access:https://doi.org/10.3390/agronomy13010048
https://doaj.org/article/59dd30a0a8794ac098c92f3b22f1740e
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spelling 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
container_volume 13
container_issue 1
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