An experience in developing the factor-based classification of soils

The principles and hierarchical structure of the factor-based soil classifi cation are discussed. This classification can be integrated as a separate c omponent into the basic soil classification along with the profile-genetic component as was suggested by V.M. Fridland. Al the same time, the factor-b ased classification has its own theoretical and practical value. This class ification is not restricted to the soils proper; it is designed for a large r group of bodies. Every object that is considered as an integral result of interactions between environmental agents (factors) is classified at five hierarchical levels. These levels do not have an obligatory character. The need to apply them is dictated by the particular properties of a given obje ct of the classification. The lowest taxonomic level is not strictly subord inated to higher levels. The factor-based classification is designed as an open system with respect to its parameters, classification criteria, and th e objects to be classified.