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Soil enzymes are one of the active components of biological processes of organic matter transformation in soil. Presently soil biology deals with the actual problems in soils, among which the leading place is occupied by “soil biology and environment protection” (Zvyagincev, 2001). The latter one requires a special meaningfulness at the study of ecosystems functioning, formed in the large industrial regions of Ukraine with the great amounts of toxic compounds including fluorides (Pomazkina et al., 2005; Shelepova-Potatueva, 2003). The influence of fluorines compounds on composition of basic physiological groups of soils microorganisms of chernozems and forest soils was studied by several scientists (Evdokimova et al., 2005; Gryshko, 1998a; Gryshko, 1998b). In spite of it, we haven’t enough information about the soil enzymes and their function, which also enter in the complement of organic matter of soil. It is thus necessary to take into account that most soil enzymes have microbial origination and actively participate in the biogeochemical streams of chemical elements in ecosystems and landscapes. The study of these processes presents the special actuality for understanding the specificity of the biogeochemical functions of the broken soil concerning the mobilization and movement of elements in food chains (plants – animals – microorganisms). Therefore researches were conducted on features of enzymes functioning as ammonifying microorganisms that participate in the processes of nitrogen-bearing organic matters transformation in soil polluted by fluorine compounds (Evdokimova, 2005; Gryshko, 1999).

Activity of some enzymes, participating in nitrogen compounds transformation in chernozem, polluted by fluorine compounds