The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic Substances
Agricultural soil use does not only affect the amount of soil organic matter, but also the molecular composition of humic (HAs) and fulvic acids (FAs). Changed hydrothermal conditions and composition of the incoming plant residues are reflected in the rate of humification and its products. The objec...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/1/144 |
| _version_ | 1797496612200644608 |
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| author | Evgeny Lodygin Evgeny Abakumov |
| author_facet | Evgeny Lodygin Evgeny Abakumov |
| author_sort | Evgeny Lodygin |
| collection | DOAJ |
| description | Agricultural soil use does not only affect the amount of soil organic matter, but also the molecular composition of humic (HAs) and fulvic acids (FAs). Changed hydrothermal conditions and composition of the incoming plant residues are reflected in the rate of humification and its products. The objective of this study was to compare the molecular composition of HAs and FAs isolated from Eutric Albic Stagnic Histic Retisol (Loamic), two Eutric Albic Retisols (Loamic)—mature and arable. Plots of mature Retisols are located at a middle taiga (Komi Republic, Russia) in a bilberry-green-moss birch-spruce forest. The plot of Retisols arable is located in the fields of the Syktyvkar state farm, which is 3.3 km northeast of mature Retisol plots. The development period is about 40 years, it is sowed with a pea-oat mixture. The results obtained indicate that soil reclamation essentially increases the proportion of aromatic components and decreases the content of carboxyl and ester groups in the humic substance (HS) structure. An increased extent of hydromorphism of Retisols leads to the enrichment of HS with aliphatic fragments. |
| first_indexed | 2024-03-10T03:06:05Z |
| format | Article |
| id | doaj.art-db9a36dea21144daa6d2df8bf23bb718 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T03:06:05Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-db9a36dea21144daa6d2df8bf23bb7182023-11-23T12:39:00ZengMDPI AGAgronomy2073-43952022-01-0112114410.3390/agronomy12010144The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic SubstancesEvgeny Lodygin0Evgeny Abakumov1Institute of Biology, Komi Science Center, Ural Branch, Russian Academy of Sciences, 167982 Syktyvkar, RussiaDepartment of Applied Ecology, Faculty of Biology, Saint Petersburg State University, 199178 St. Petersburg, RussiaAgricultural soil use does not only affect the amount of soil organic matter, but also the molecular composition of humic (HAs) and fulvic acids (FAs). Changed hydrothermal conditions and composition of the incoming plant residues are reflected in the rate of humification and its products. The objective of this study was to compare the molecular composition of HAs and FAs isolated from Eutric Albic Stagnic Histic Retisol (Loamic), two Eutric Albic Retisols (Loamic)—mature and arable. Plots of mature Retisols are located at a middle taiga (Komi Republic, Russia) in a bilberry-green-moss birch-spruce forest. The plot of Retisols arable is located in the fields of the Syktyvkar state farm, which is 3.3 km northeast of mature Retisol plots. The development period is about 40 years, it is sowed with a pea-oat mixture. The results obtained indicate that soil reclamation essentially increases the proportion of aromatic components and decreases the content of carboxyl and ester groups in the humic substance (HS) structure. An increased extent of hydromorphism of Retisols leads to the enrichment of HS with aliphatic fragments.https://www.mdpi.com/2073-4395/12/1/144arable soilshumic and fulvic acidsNMR spectroscopy |
| spellingShingle | Evgeny Lodygin Evgeny Abakumov The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic Substances Agronomy arable soils humic and fulvic acids NMR spectroscopy |
| title | The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic Substances |
| title_full | The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic Substances |
| title_fullStr | The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic Substances |
| title_full_unstemmed | The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic Substances |
| title_short | The Impact of Agricultural Use of Retisols on the Molecular Structure of Humic Substances |
| title_sort | impact of agricultural use of retisols on the molecular structure of humic substances |
| topic | arable soils humic and fulvic acids NMR spectroscopy |
| url | https://www.mdpi.com/2073-4395/12/1/144 |
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