Аннотация:The vertical distribution of 137Сs in Albeluvisols of the spruce forest in the Roslavl district of Smolensk region was investigated. The statistical characteristics of spatial variability and distribution laws for the activity concentrations and activity depositions of 137Сs in upper soil layers (forest litter, 0–5, 5–10, 10–19 cm) were determined. Positive correlations between the height, crown length of spruce trees and the content of 137Сs in the soil under them were revealed. The regularities of spatial configuration of 137Сs contamination in soil were related to the parcel structure of spruce forest. The lateral trends for distribution of 137Сs along the tessers under spruce and during the transfer to the open positions between the trees were recorded.