In present work are introduced perennial ecological process studies, accrue in different exclusion zone (EZ) biocenoses. Main factors have an influence on biocenoses ecological condition--the radioactive contamination of territory and the absence of economic activity. A conclusion on increasing adjusting dug useful entomofauna and on relative stabilizations of ecological situations of the fallow lands and in gardens of EZ is made. Pinetrees in conditions of EZ are the most unstable biological system and require a constant checking and undertaking forestry actions.