Variability of the content of separate soil ped fractions as a sign of their stability

Abstract

The authors have evaluated the variability of the results of determining the content of soilped fractions of a different size obtained by the method of dry dispersion on sieves. They have proved the fact of reaggregation of soil mass, i.e. soil mass exchange between soil peds of a different size. It has been found that the composition renewal of the soil ped mass forms the basis of the ped “life” and causes the variability of the ped composition of the soil, which describes the intensity of renewing individual soil peds. It has been determined that the higher the content variability of ped fractions of a certain size is, the less stable they become and vice versa. For most fractions, the level of variation coefficients lies in the range of 10-20%.