Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy
Soils of Antarctic considered as underestimated in terms of soils organic matter polls, organic remnants humification/mineralization rates and biogenic-abiogenic interactions. Humic acids of selected Sub Antarctic soils were investigated in terms of elemental and structural composition with special...
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Masaryk University Press
2017
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Online Access: | http://dx.doi.org/10.5817/cpr2017-1-1 https://journals.muni.cz/CPR/article/viewFile/12901/11229 |
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crmasarykunivpr:10.5817/cpr2017-1-1 2024-05-19T07:29:28+00:00 Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy Abakumov, Evgeny 2017 http://dx.doi.org/10.5817/cpr2017-1-1 https://journals.muni.cz/CPR/article/viewFile/12901/11229 unknown Masaryk University Press http://creativecommons.org/licenses/by-nc-nd/4.0 Czech Polar Reports volume 7, issue 1, page 1-10 ISSN 1805-0697 1805-0689 journal-article 2017 crmasarykunivpr https://doi.org/10.5817/cpr2017-1-1 2024-04-30T06:41:29Z Soils of Antarctic considered as underestimated in terms of soils organic matter polls, organic remnants humification/mineralization rates and biogenic-abiogenic interactions. Humic acids of selected Sub Antarctic soils were investigated in terms of elemental and structural composition with special reference to evaluation of organic matter stabilisation degree and assessment of carbon species distributions in the molecules with use of solid state 13C-NMR spectroscopy. It was shown, that the prevailing of aliphatic compounds on the aromatic one is more pronounced in Antarctic soils than in Arctic ones. Average portion of the aromatic compounds is about 20% in humic acids, extracted from soils with evident ornitogenic effect from Fildes Peninsula (Norh-West Antarctic peninsula). This indicates that the role of humification precursors composition is the leading in the humification process. The stabilisation rate of the Antarctic HAs can be assessed as low and the potential risk of biodegradation of their molecules are high. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Arctic Munipress - Masaryk University Press Czech Polar Reports 7 1 1 10 |
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Munipress - Masaryk University Press |
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crmasarykunivpr |
language |
unknown |
description |
Soils of Antarctic considered as underestimated in terms of soils organic matter polls, organic remnants humification/mineralization rates and biogenic-abiogenic interactions. Humic acids of selected Sub Antarctic soils were investigated in terms of elemental and structural composition with special reference to evaluation of organic matter stabilisation degree and assessment of carbon species distributions in the molecules with use of solid state 13C-NMR spectroscopy. It was shown, that the prevailing of aliphatic compounds on the aromatic one is more pronounced in Antarctic soils than in Arctic ones. Average portion of the aromatic compounds is about 20% in humic acids, extracted from soils with evident ornitogenic effect from Fildes Peninsula (Norh-West Antarctic peninsula). This indicates that the role of humification precursors composition is the leading in the humification process. The stabilisation rate of the Antarctic HAs can be assessed as low and the potential risk of biodegradation of their molecules are high. |
format |
Article in Journal/Newspaper |
author |
Abakumov, Evgeny |
spellingShingle |
Abakumov, Evgeny Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy |
author_facet |
Abakumov, Evgeny |
author_sort |
Abakumov, Evgeny |
title |
Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy |
title_short |
Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy |
title_full |
Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy |
title_fullStr |
Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy |
title_full_unstemmed |
Characterisation of humic acids, isolated from selected sub-antarctic soils by 13C-NMR spectroscopy |
title_sort |
characterisation of humic acids, isolated from selected sub-antarctic soils by 13c-nmr spectroscopy |
publisher |
Masaryk University Press |
publishDate |
2017 |
url |
http://dx.doi.org/10.5817/cpr2017-1-1 https://journals.muni.cz/CPR/article/viewFile/12901/11229 |
genre |
Antarc* Antarctic Antarctic Peninsula Arctic |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Arctic |
op_source |
Czech Polar Reports volume 7, issue 1, page 1-10 ISSN 1805-0697 1805-0689 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0 |
op_doi |
https://doi.org/10.5817/cpr2017-1-1 |
container_title |
Czech Polar Reports |
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7 |
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1 |
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1 |
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10 |
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1799479492621631488 |