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Due to animal fossorial activity many chemical elements and its compositions migrate from deep soil horizons onto soil cover and more intensively involve in biological cycle of matter. This way of animal activity was note by Levakovsky in the end of 19 century. Vernadsky also wrote about it. In XX century investigation of animal fossorial activity was one of most way in ground zoology and biogeocoenotical researches (Grulich, 1958; Абатуров, 1984; Абатуров, Карпачевский 1966а; Абатуров и др., 1969). The special attention scientists paid to migration of heavy metals and radionuklides (Pakhomov, Belokon, 1996; Пахомов, Подьячева, Галкин, 1998). On that time an important fact for processes of soil genesis and function of soil safely mechanisms was established: impact of fossorial activity to processes of soil desalinization (Иванов, 1950; Зубкова, 1975; Абатуров, 1984). Animal influence on chemical characteristics shows often in process of transport soil matter, intensification of organic matter decomposition under the influence of physical and chemical regime changes which promote for soil richness by humus. As a result a fossorial activity of animals is mixing topsoil humus layer with subsoil which is situated more deeply. Thanks to this process subsoil becomes richer by organic matter (Гиляров, 1951; Кучерук, 1963; Reva et. all, 1996; Пахомов, 1997а). Fossorial activity has an influence to soil pH, contents of phosphorus, nitrogen, potassium and to ion absorption by plants (Koide et al., 1987; Carlson, White, 1988; Pakhomov, Bulakhov, 1995).

Influence of mammal fossorial activity on bearing-out some chemical elements on up of soil cover