STRUCTURE OF BACTERIAL COMPLEXES IN PRISTINE SPRUCE FORESTS

Seasonal dynamics and taxonomic structure of bacterial complexes have been investigated in a white-podzolic soil under spruce bilberry fores t and in a brown forest soil under mixed spruce forest. The difference between biotopes is manifested in soil bacterial complexes. The maxim um bacteria number and diversity are proper to the litter. The number and diversity are determined by the substrate kind, less important are the type of biotope and season. The insignificant effects of seasonal agents is thought to depend on the high humidity of the year of sampl ing.