Relevance. Soil heterogeneity, both natural and that occurred owing to undercarriages, should be proportionated to the scale of the study. The soil cover of the sanitary protection zone of a transmission line is considered as a hierarchical system. There is natural heterogeneity and anthropogenic degraded anthropogenic soils in the soil cover. The registration of degraded soils is the relevant issue. The main aim of the study is to establish relation based on wavelet analysis between the hierarchical structure of soil cover and the size of soil individual to improve the taxonomic division and to determine the mapping scale of mechanically disturbed soils. The methods used in the study. Calculations were carried using wavelet analysis based on phase-frequency characteristics realized in Matlab 7.1 package-based functions gauss 5 (cgau5). Wavelet analysis compares sequentially oscillating cycles of a discrete function with the model cycle. Model cycle changes size consistently. Measurement of humus horizon depth was used as a discrete function. Humus horizon depth (N=1826) was measured on the wall of 67 m length trench, crossing the sanitary protection zone of a transmission line of 500 kV. The ideas of F. Kozlowskiy and Fourier analysis were taken as the base for determining the sizes of soil individual. The results. Wavelet analysis allows us to identify the hierarchical structure of soil heterogeneity. The authors have considered the asymmetry of the phase-frequency diagram and proved the calculation of soil individual sizes. Reasonable of the recommendations for study scale-effect polypedons of anthropogenic soils were given. Conclusion. The authors determined the system of hierarchical cycles of smaller sizes which can correspond to the individuals of lower taxonomic units, which were not defined in the existing soil classifications. It was shown asymmetry phase-frequency characteristics of the soil heterogeneity. It was ascertained that at different levels of hierarchy the frequency of occurrence of soil individuals is proportional to a square root of linear dimension. The authors determined the dependences of cycle amount on size and observation scale and proved the calculation of the observation scale grid to study anthropogenically disturbed soils of the sanitary protection zone. In the formation of a network of monitoring observations for the type of sod-podzolic soils it is recommended to set the distance between the observations of soil less than or equal to the size of the individual soil - 450-500 meters.