Comparative analysis of the groups of microorganisms in natural and anthropo-genically altered brown forest soils of the Kaliningrad Peninsula

This article focuses on the numerical concentration of certain groups of microorganisms in the brown forest soils of natural and urbanised ecosystems of the Kaliningrad Peninsula. An analysis of the microflora was performed in spring, summer, and autumn 2012. This paper presents the average annual data for each key area. It is shown that human-altered ecosystems are characterized by a higher than natural concentration of ammonifying microorganisms and actinomycetes. The numerical concentration of micromycetes in agrophitocenosis and beech-sorrel spruce forests is lower than in the soils of urban ecosystems.