Abstract
Microbiological investigations of cultural layers were performed in a settlement of the Alanian culture—Podkumskoe-2 (the 2nd–4th centuries AD). The present-day soddy-calcareous soils (rendzinas) used for different purposes were also studied near this settlement. The most significant changes in the initial characteristics of the soil microbial communities occurred under the residential influence more than 1500 years ago; these changes have been preserved until the present time. In the areas subjected to the anthropogenic impact, the total microbial biomass (the weighted average of 3720 μg C/g soil) was lower than that in the background soil. The minimal values of the microbial biomass were found in the soil of the pasture—2.5 times less than in the background soil. The urease activity of the cultural layer was higher than that of the soils nearby the settlement. Elevated values of the cellulose activity were also recorded only in the cultural layers. The current plowing has led to a significant decrease in the mycelium biomass of the microscopic fungi. In the soil of the fallow, the weighted average value of the fungal hyphae biomass along the profile was twice lower than that in the background soil and cultural layers of the settlement. The pasture first affected the active microbial biomass and, to a lesser extent, the amount of microscopic fungi.
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Original Russian Text © E.V. Chernysheva, N.N. Kashirskaya, D.S. Korobov, A.V. Borisov, 2014, published in Pochvovedenie, 2014, No. 9, pp. 1068–1076.
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Chernysheva, E.V., Kashirskaya, N.N., Korobov, D.S. et al. Biological activity of soddy-calcareous soils and cultural layers in Alanian settlements of the Kislovodsk basin. Eurasian Soil Sc. 47, 884–891 (2014). https://doi.org/10.1134/S1064229314090026
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DOI: https://doi.org/10.1134/S1064229314090026