Аннотация:The approximation parameters reflect the specificity and features of the soil characteristics for the studied object. The suitability of mathematical equations has been considered for the description of the wedging resistance of soil aggregates, the past as a function of the water content and the decomposition dynamics of the soil aggregates in time, the selection of the best model, and the statistical analysis of the parameters of the corresponding models. The quantitative analysis of the interrelations between the parameters characterizing the wedging resistance of soil aggregates Pm as a function of the water content, W. The exponential equations are best suitable for describing the dependence of the wedging resistance of the aggregates on the water content, the power equations best approximate the dependence of the wedging resistance of soil pastes on the water content in the range from the liquid limit to the plastic limit. The use of mathematical parameters of approximation (b1, b2, c1, c2) provides more exact and profound comparative and quantitative analyses of soil objects.