Changes in Properties of Alas Soils in Central Yakutia Caused
by Pasture Degradation

A. A. Danilova^a, P. P. Danilov^b, G. N. Savvinov^b, L. D. Gavrilyeva^b, A. A. Petrov^b, and G. A.
Alekseev^b

^a Institute of Soil Management and Chemicalization of Agriculture, Russian Academy of Agricultural Sciences,
p/o box 356, Krasnoobsk, Novosibirsk oblast, 630501 Russia

^b Institute of Applied Ecology of the North, Northeastern Federal University, ul. Lenina 1, Yakutsk, 677027 Russia

e-mail: Danilova7alb@yandex.ru, DanPP@mail.ru

Received June 13, 2012

Abstract—The biological properties of alas soils influenced by pasture degradation at a load of five to six live-
stock units per hectare have been studied. It has been shown that manure in the amount of about 2 t dry sub-
stance/ha per year under cryoarid conditions allows for the studied characteristics to be maintained in a 0–20-
cm soil layer at the level of background values for alas soil. The stability of the microbial community estab-
lished in degraded alas soils has been estimated.

Keywords: Central Yakutia, alas soils, biological properties, pasture degradation, permafrost

DOI: 10.1134/S2079096113040057

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