«IZVESTIYA IRKUTSKOGO GOSUDARSTVENNOGO UNIVERSITETA». SERIYA «BIOLOGIYA. ECOLOGIYA»
«THE BULLETIN OF IRKUTSK STATE UNIVERSITY». SERIES «BIOLOGY. ECOLOGY»
ISSN 2073-3372 (Print)

List of issues > Series «Biology. Ecology». 2016. Vol. 17

Microbiota and Biological Activity of Soils in the Okinskaya Depression (Eastern Sayan Ridge, Siberia)

Author(s)
A. P. Makarova, E. V. Naprasnikova
Abstract
Results from an ecological study of the main soils in the Okinskaya depression (Eastern Sayan Ridge are presented. The soil pH varies from weakly acidic to alkaline (pH 5,8‒7,8). This paper considers for the first time the characteristics of the present state of microbiocenoses and soil biological activity whose degree is not high. The maximum values for quantitative indicators are established for the microbiota of peat podburs. The study revealed a significant enzymatic (amilolithic and catalase) activity of bacteria isolated on standard nutritive media. The presence of the rarely occurring in the territory micromycete species (Trichothecium roseum) is revealed. Penicillium ochro-chloron was identified on the territory of a gold mining enterprise for the first time in East Siberia.
Keywords
Okinskaya depression, soils, microorganisms, biological activity
UDC
631.46

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