Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia
Of particular interest in the north of Western Siberia are frozen flat-mound bogs. Being formed in a transitional climatic zone, on the southern front of the permafrost zone, these frozen peatlands may turn out to be highly reactive upon thawing and deliver high amounts of solutes to the hydrologica...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Altai State University
2023
|
Subjects: | |
Online Access: | http://journal.asu.ru/biol/article/view/12903 https://doi.org/10.5281/zenodo.7854816 |
id |
ftaltaistuniojs:oai:journal.asu.ru:article/12903 |
---|---|
record_format |
openpolar |
spelling |
ftaltaistuniojs:oai:journal.asu.ru:article/12903 2023-12-17T10:33:34+01:00 Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia Raudina, Tatiana V. Istigechev, Georgyi I. Loiko, Sergey V. 2023-04-24 application/pdf application/xml http://journal.asu.ru/biol/article/view/12903 https://doi.org/10.5281/zenodo.7854816 eng eng Altai State University http://journal.asu.ru/biol/article/view/12903/10771 http://journal.asu.ru/biol/article/view/12903/10772 http://journal.asu.ru/biol/article/view/12903 doi:10.5281/zenodo.7854816 Acta Biologica Sibirica; Vol 9 (2023): Acta Biologica Sibirica 195–208 Acta Biologica Sibirica; Том 9 (2023): Acta Biologica Sibirica 2412-1908 Microtopography Histosols peatlands bog waters microform type frozen flat-mound bog Yamalo-Nenets Autonomous Okrug info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2023 ftaltaistuniojs https://doi.org/10.5281/zenodo.7854816 2023-11-21T18:16:19Z Of particular interest in the north of Western Siberia are frozen flat-mound bogs. Being formed in a transitional climatic zone, on the southern front of the permafrost zone, these frozen peatlands may turn out to be highly reactive upon thawing and deliver high amounts of solutes to the hydrological network. A detailed study of a flat-mound bog was carried out in a key area of about 3 hectares (Purovsky district, Yamalo-Nenets Autonomous Okrug). The soil-ecological conditions of the site are described, as well as the effect of spatial heterogeneity on the composition and properties of soils. Using topographic mapping and photogrammetry, it was identified that the bog surface is characterized by distinct microtopography (mounds-hollows-thermokarst subsidence with a percentage areas ratio of 49:30:21, respectively). Small-scale variations in ecohydrological settings, microtopography, and vegetation affect the distribution of nutrients, organic carbon in soils, and DOC (dissolved organic carbon) in bog waters. The main soil types are Dystric Hemic Cryic Histosols and Dystric Hemic Histosols (Gelic) found on mounds and in subsidence, respectively. If the peat thickness decreases to 40– 60 cm, then Spodic Histic Turbic Cryosols (Albic, Arenic) and Histic Turbic Cryosols (Albic, Arenic) form. In hollows and fens, Dystric Epifibric Histosols, Spodic Histic Turbic Cryosols (Arenic), and Gleyic Histic Entic Podzols (Turbic) are the most common. The proportion of soils with frozen peat is no more than 20% of the area of the key site and permafrost lies deeper, in the underlying rocks. It was found that carbon stocks within the key area vary from 31.1 to 91.3 kg/m2. The maximum values are observed in transit subsidences/hollows between mounds, where water is discharged. Concentrations of macro-microelements in bog waters vary depending on microform types. For some elements (e.g., DOC, Fe, Al, B, Si, Ti, V, Rb, Sb, Cs, REEs (rare earth elements), Pb, Th, U), they are approximately equal or 1.5–2 higher on the mounds. The ... Article in Journal/Newspaper nenets Nenets Autonomous Okrug permafrost Sibirica taiga Thermokarst Yamalo Nenets Yamalo-Nenets Autonomous Okrug Siberia Altai State University: Scientific Journals of ASU |
institution |
Open Polar |
collection |
Altai State University: Scientific Journals of ASU |
op_collection_id |
ftaltaistuniojs |
language |
English |
topic |
Microtopography Histosols peatlands bog waters microform type frozen flat-mound bog Yamalo-Nenets Autonomous Okrug |
spellingShingle |
Microtopography Histosols peatlands bog waters microform type frozen flat-mound bog Yamalo-Nenets Autonomous Okrug Raudina, Tatiana V. Istigechev, Georgyi I. Loiko, Sergey V. Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia |
topic_facet |
Microtopography Histosols peatlands bog waters microform type frozen flat-mound bog Yamalo-Nenets Autonomous Okrug |
description |
Of particular interest in the north of Western Siberia are frozen flat-mound bogs. Being formed in a transitional climatic zone, on the southern front of the permafrost zone, these frozen peatlands may turn out to be highly reactive upon thawing and deliver high amounts of solutes to the hydrological network. A detailed study of a flat-mound bog was carried out in a key area of about 3 hectares (Purovsky district, Yamalo-Nenets Autonomous Okrug). The soil-ecological conditions of the site are described, as well as the effect of spatial heterogeneity on the composition and properties of soils. Using topographic mapping and photogrammetry, it was identified that the bog surface is characterized by distinct microtopography (mounds-hollows-thermokarst subsidence with a percentage areas ratio of 49:30:21, respectively). Small-scale variations in ecohydrological settings, microtopography, and vegetation affect the distribution of nutrients, organic carbon in soils, and DOC (dissolved organic carbon) in bog waters. The main soil types are Dystric Hemic Cryic Histosols and Dystric Hemic Histosols (Gelic) found on mounds and in subsidence, respectively. If the peat thickness decreases to 40– 60 cm, then Spodic Histic Turbic Cryosols (Albic, Arenic) and Histic Turbic Cryosols (Albic, Arenic) form. In hollows and fens, Dystric Epifibric Histosols, Spodic Histic Turbic Cryosols (Arenic), and Gleyic Histic Entic Podzols (Turbic) are the most common. The proportion of soils with frozen peat is no more than 20% of the area of the key site and permafrost lies deeper, in the underlying rocks. It was found that carbon stocks within the key area vary from 31.1 to 91.3 kg/m2. The maximum values are observed in transit subsidences/hollows between mounds, where water is discharged. Concentrations of macro-microelements in bog waters vary depending on microform types. For some elements (e.g., DOC, Fe, Al, B, Si, Ti, V, Rb, Sb, Cs, REEs (rare earth elements), Pb, Th, U), they are approximately equal or 1.5–2 higher on the mounds. The ... |
format |
Article in Journal/Newspaper |
author |
Raudina, Tatiana V. Istigechev, Georgyi I. Loiko, Sergey V. |
author_facet |
Raudina, Tatiana V. Istigechev, Georgyi I. Loiko, Sergey V. |
author_sort |
Raudina, Tatiana V. |
title |
Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia |
title_short |
Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia |
title_full |
Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia |
title_fullStr |
Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia |
title_full_unstemmed |
Soil-ecological conditions of the north taiga flat-mound bog, Western Siberia |
title_sort |
soil-ecological conditions of the north taiga flat-mound bog, western siberia |
publisher |
Altai State University |
publishDate |
2023 |
url |
http://journal.asu.ru/biol/article/view/12903 https://doi.org/10.5281/zenodo.7854816 |
genre |
nenets Nenets Autonomous Okrug permafrost Sibirica taiga Thermokarst Yamalo Nenets Yamalo-Nenets Autonomous Okrug Siberia |
genre_facet |
nenets Nenets Autonomous Okrug permafrost Sibirica taiga Thermokarst Yamalo Nenets Yamalo-Nenets Autonomous Okrug Siberia |
op_source |
Acta Biologica Sibirica; Vol 9 (2023): Acta Biologica Sibirica 195–208 Acta Biologica Sibirica; Том 9 (2023): Acta Biologica Sibirica 2412-1908 |
op_relation |
http://journal.asu.ru/biol/article/view/12903/10771 http://journal.asu.ru/biol/article/view/12903/10772 http://journal.asu.ru/biol/article/view/12903 doi:10.5281/zenodo.7854816 |
op_doi |
https://doi.org/10.5281/zenodo.7854816 |
_version_ |
1785587666721439744 |