TY - JOUR

T1 - Agropedogenesis and related changes in morphology, fertility and microbiome diversity of soils in cryogenic ecosystems on the example of the central part of Yamal region (West Siberia)

AU - Низамутдинов, Тимур Ильгизович

AU - Жемчуева, Дарья Александровна

AU - Зверев, А.О.

AU - Андронов, Евгений

AU - Печкин, Александр Сергеевич

AU - Абакумов, Евгений Васильевич

PY - 2024/9/1

Y1 - 2024/9/1

N2 - Agro-development of northern territories results in radical transformation of soils of these ecosystems. On the example of Nadym district (N 65.5; E 72.6) of Yamal-Nenets Autonomous Okrug (Russia) it is shown that the process of agrogenic transformation of reference podzols is similar to the process of formation of Plaggen soils, which were repeatedly found in Northern Europe and other regions (Plaggen Anthrosols – result of Plaggen Management). As a result of the application of large amounts of organic substrate (Plaggen Material), the thickness of the surface horizons increases considerably (from 3 cm to more than 30 cm in some cases). These soils occupy an intermediate position from reference soils to highly transformed − Hortic/Plaggic Podzols. Hortic and Plaggic horizons are characterized by reduced acidity (pH H2O 5–6, pH CaCl2 4–5), increased content and stock of organic carbon (5.4–14.5 %). Soils of agrogenic and postagrogenic ecosystems are characterized by relatively high content of basic nutrients (P-P2O5 up to 386 mg kg−1, K-K2O up to 239.0 mg kg−1) and clay (up to 20.9 %), also the degree of their microstructure increases in comparison with reference Podzols of Nadym district. The taxonomic composition of soil microbiome also changes greatly in the process of agricultural development of soils. In reference Podzols Proteobacteria, Actinobacteria and Bacteroidetes dominate. In general the microbiological profile in the of agrogenic and postagrogenic soils shifts towards the increase of the phyla Proteobacteria, Acidobacteria, Planctomycetes, Nitrospirae, Verrucomicrobia (for abandoned lands) and Actinobacteria, Bacteroides, Firmicutes, Euryarchaeota (for soil in use).

AB - Agro-development of northern territories results in radical transformation of soils of these ecosystems. On the example of Nadym district (N 65.5; E 72.6) of Yamal-Nenets Autonomous Okrug (Russia) it is shown that the process of agrogenic transformation of reference podzols is similar to the process of formation of Plaggen soils, which were repeatedly found in Northern Europe and other regions (Plaggen Anthrosols – result of Plaggen Management). As a result of the application of large amounts of organic substrate (Plaggen Material), the thickness of the surface horizons increases considerably (from 3 cm to more than 30 cm in some cases). These soils occupy an intermediate position from reference soils to highly transformed − Hortic/Plaggic Podzols. Hortic and Plaggic horizons are characterized by reduced acidity (pH H2O 5–6, pH CaCl2 4–5), increased content and stock of organic carbon (5.4–14.5 %). Soils of agrogenic and postagrogenic ecosystems are characterized by relatively high content of basic nutrients (P-P2O5 up to 386 mg kg−1, K-K2O up to 239.0 mg kg−1) and clay (up to 20.9 %), also the degree of their microstructure increases in comparison with reference Podzols of Nadym district. The taxonomic composition of soil microbiome also changes greatly in the process of agricultural development of soils. In reference Podzols Proteobacteria, Actinobacteria and Bacteroidetes dominate. In general the microbiological profile in the of agrogenic and postagrogenic soils shifts towards the increase of the phyla Proteobacteria, Acidobacteria, Planctomycetes, Nitrospirae, Verrucomicrobia (for abandoned lands) and Actinobacteria, Bacteroides, Firmicutes, Euryarchaeota (for soil in use).

KW - 16S rRNA

KW - Agrosoils

KW - Amplicon sequencing

KW - Nadym

KW - Plaggen agriculture

KW - Soil metabarcoding

KW - Soil resources

KW - Subarctic

KW - YNAO

UR - https://www.mendeley.com/catalogue/d96b6176-0655-3a8a-8c48-bd414455017f/

U2 - 10.1016/j.geoderma.2024.117014

DO - 10.1016/j.geoderma.2024.117014

M3 - Article

VL - 449

JO - Geoderma

JF - Geoderma

SN - 0016-7061

M1 - 117014

ER -