ON THE CHARACTERIZATION OF THE SALINE SOILS. OLKHON, BAIKAL REGION
The study of soil Olkhon (Baikal, Irkutsk region), distributed around the salt lake Shara-Nur. Sampling made by transect-catena. The results of the analysis of the surface horizons of six soil profiles. Dana microbiological characteristics of soils on the qualitative and quantitative indicators of autotrophic and heterotrophic microorganisms. The soil enrichment cultures observed 17 species of microalgae belonging to three departments: Cyanobacteria, Bacillariophyta and Chlorophyta. In terms of species diversity dominated by Chlorophyta department. In the study of heterotrophic microflora found 33 morphotype colonies. Specificity of colonies for various soil samples. The soil of № sections 1, 3, 5 and 6 G— bacteria predominate, while samples 2 and 4 № - T +. Spore-forming bacteria were found in all soil samples. Of capsule were rare. Flagellated forms were cut in from the experiments number 2. Microscopic fungi were found. The high activity of nitrifying bacteria in all experimental variants. Revealed aerobic and anaerobic nitrogen-fixing bacteria and denitrifiers.