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Over 80 deposits of minerals are found in Ukraine; most of them (about 70 %) is situated in the Kryvorizhsky iron-ore basin. About 90 different industrial works of ferrous metallurgy function in Kryvorizhsky region. As a result of long-term activity metallurgical and chemical enterprises, crisis and catastrophic states of environment can be experienced in the Kryvorizhsky region. Consequences of integrity violation are irreversible transformations of geological environment and hydrosphere. Complex contamination of environment (soils, air, superficial and underground waters) by industrial toxicants took place in the region. In such local anthropogenic conditions were formed new anthropogenic landscapes and technogen ecosystems (Добровольский, 1982, 1988; Зонн, 1989; Травлеев, 2000; Белова, 2001; Малахов, 2003). In conditions of technogen pressing the soil surface are covered by different kinds of industrial wastes. Often soil play an important role as a buffer and detoxication medium in the ecosystems. Soil always accumulates different quality of industrial wastes: heavy metals, pesticides, carbohydrates, phenol compositions, acetone, detergents and other chemical contaminants (Долгова, 1999). In conditions of excessive contamination a soils lose functions of detoxication, and destructive processes develop into them. In this situation the industrial wastes get into biogeochemical cycles; they enter into physical and chemical interaction with soil exchange capacity complex, consumed by the soil organisms and plants. This process is accompanied by changes of their toxic level and migratory mobile (Долгова, 1988). The soils are exposed especially strong technogen pressure in the districts of industrial concerns location, cities, and around transport roads. Technogenic deserts often formed the territories, which are situated near the industrial areas of chemical and metallurgical enterprises, or which are located near to enterprises. Excretorial and fossorial mammal activity is important part of environment-forming activity of animals. Different kinds of animals always influence on main ecosystem processes, especially on the paedogenesis and processes of forming the soil biological activity (Булахов, 1973; Злотин, 1974; Абатуров, 1980; Булахов, 1998; Пахомов, 2004). As a result of excretorial and fossorial activity of different animals groups is impact on complex of soil-forming processes. When soils are intensively enriches by organic matter, its physical and chemical properties optimize, and the total biological activity raises (Хабиров, 1979; Хазиев, 1982; Булахов, 1987; Булахов, 2006). Thus, environment-forming activity of animals is an important factor for soil-forming process. The invertase enzyme is necessary constituent of soil biological activity. Therefore the content of this enzyme in the soil is an index of its diagnostic state. By the effect of invertase the transformation of carbohydrates, and also the destructs of saccharose to glucose and fructose (Хазиев, 1982) is take place by the invertase.

Influence of phytophagous mammals environment-forming activity on the soil invertase fermentative activity in conditions of mining impact region