Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia
Data on the molecular structure of humic substances (HSs) of zonal soils for the southern, middle, northern taiga and southern tundra of northeastern European Russia have been obtained. This was accomplished using solid-state 13C nuclear magnetic resonance (13C NMR) technique. The soils under study...
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ftdoajarticles:oai:doaj.org/article:385d99e447c34fd289b3a550ca08b43b 2023-05-15T15:06:11+02:00 Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia Lodygin Evgeny Vasilevich Roman 2020-06-01T00:00:00Z https://doi.org/10.24425/ppr.2020.133009 https://doaj.org/article/385d99e447c34fd289b3a550ca08b43b EN eng Polish Academy of Sciences http://journals.pan.pl/dlibra/publication/133009/edition/116218/content https://doaj.org/toc/2081-8262 doi:10.24425/ppr.2020.133009 2081-8262 https://doaj.org/article/385d99e447c34fd289b3a550ca08b43b Polish Polar Research, Vol 41, Iss 2, Pp 115-135 (2020) arctic humic acids fulvic acids soil permafrost tundra taiga Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.24425/ppr.2020.133009 2022-12-31T08:11:20Z Data on the molecular structure of humic substances (HSs) of zonal soils for the southern, middle, northern taiga and southern tundra of northeastern European Russia have been obtained. This was accomplished using solid-state 13C nuclear magnetic resonance (13C NMR) technique. The soils under study vary in the point of genesis and degree of hydromorphism. The impact of environmental factors (temperature and humidity) on qualitative and quantitative composition of humic (HAs) and fulvic acids (FAs) has been determined. Excess moisture significantly affects HS accumulation and HS molecular structure: hydromorphic taiga soils accumulate HSs enriched by unoxidized aliphatic fragments, tundra soils – the ones enriched by carbohydrate fragments. Various conditions of soil genesis predefine the specific character of structural and functional parameters of HSs in the southern taiga to southern tundra soils, as is expressed through the increased portion of labile carbohydrate and amino acid fragments and methoxyl groups within the structure of HSs. The tundra humification is characterized by levelling-off of structural and functional parameters of major classes of specific organic compounds of soils – HAs and FAs. Article in Journal/Newspaper Arctic permafrost Polar Research taiga Tundra Directory of Open Access Journals: DOAJ Articles Arctic |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
arctic humic acids fulvic acids soil permafrost tundra taiga Geology QE1-996.5 |
spellingShingle |
arctic humic acids fulvic acids soil permafrost tundra taiga Geology QE1-996.5 Lodygin Evgeny Vasilevich Roman Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia |
topic_facet |
arctic humic acids fulvic acids soil permafrost tundra taiga Geology QE1-996.5 |
description |
Data on the molecular structure of humic substances (HSs) of zonal soils for the southern, middle, northern taiga and southern tundra of northeastern European Russia have been obtained. This was accomplished using solid-state 13C nuclear magnetic resonance (13C NMR) technique. The soils under study vary in the point of genesis and degree of hydromorphism. The impact of environmental factors (temperature and humidity) on qualitative and quantitative composition of humic (HAs) and fulvic acids (FAs) has been determined. Excess moisture significantly affects HS accumulation and HS molecular structure: hydromorphic taiga soils accumulate HSs enriched by unoxidized aliphatic fragments, tundra soils – the ones enriched by carbohydrate fragments. Various conditions of soil genesis predefine the specific character of structural and functional parameters of HSs in the southern taiga to southern tundra soils, as is expressed through the increased portion of labile carbohydrate and amino acid fragments and methoxyl groups within the structure of HSs. The tundra humification is characterized by levelling-off of structural and functional parameters of major classes of specific organic compounds of soils – HAs and FAs. |
format |
Article in Journal/Newspaper |
author |
Lodygin Evgeny Vasilevich Roman |
author_facet |
Lodygin Evgeny Vasilevich Roman |
author_sort |
Lodygin Evgeny |
title |
Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia |
title_short |
Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia |
title_full |
Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia |
title_fullStr |
Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia |
title_full_unstemmed |
Environmental aspects of molecular composition of humic substances from soils of northeastern European Russia |
title_sort |
environmental aspects of molecular composition of humic substances from soils of northeastern european russia |
publisher |
Polish Academy of Sciences |
publishDate |
2020 |
url |
https://doi.org/10.24425/ppr.2020.133009 https://doaj.org/article/385d99e447c34fd289b3a550ca08b43b |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Polar Research taiga Tundra |
genre_facet |
Arctic permafrost Polar Research taiga Tundra |
op_source |
Polish Polar Research, Vol 41, Iss 2, Pp 115-135 (2020) |
op_relation |
http://journals.pan.pl/dlibra/publication/133009/edition/116218/content https://doaj.org/toc/2081-8262 doi:10.24425/ppr.2020.133009 2081-8262 https://doaj.org/article/385d99e447c34fd289b3a550ca08b43b |
op_doi |
https://doi.org/10.24425/ppr.2020.133009 |
_version_ |
1766337845161623552 |