Abstract
The enzymatic activity (catalase, cellulase) of soils and technogenic sand on the territory of the former Dzhida tungsten-molybdenum combine (Western Transbaikalia) was studied. The objects of the study were the surface 0-10 cm layers of alluvial dark humus soil (Fluvisols) as a background, man-made sand (waste after mining and processing of tungsten and molybdenum ores) and soils of recultivated contours № 1, 3, 4. At the same depth, linen cloths were laid to assess the activity of cellulase. Differences in the activity of soil enzymes of the background soil and soils on the studied contours were established, depending on the level of heavy metals content in them and the technologies used for reclamation.
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