Formation of berry living resources of field layer cover on gold and platinum polygons by washing technologies

The work deals with the results of studying the berry living resources of field layers cover on the gold and platinum polygons by a washing method, using the drags and hydromonitors on the territory of the Sverdlovsk Region north-west part, Russian Federation. It is based on the trial plot methods where laid on at landfills of various ages from 10 to 55 years. In total 19 objects were laid out. Of there 7 tests where laid out at reclamation landfills after the operation of the hydromonitor. After the drag’s work six trial plots were laid out on rellamated landfills and six – on reclaimed ones. The aboveground phytomass of berry plants of the field layers cover were taken for determining in absolutely dry state, as well it was determined there progressive coating and annual yields for 2019–2021. Berry plants were represented by five species: bilberry (blueberry) Vaccinium myrtillus L., bluebery Vaccinium uliginosum L., cowberry Vaccinium vitis-idaea L., strawberry Fragaria vesca L. and drumple Rubus saxatilis L. By increasing the age of the landfills establishment or ongoing reclamation, the reserves of berry plants living on the soil cover will increase. A correlation analysis has been carried out during which a close positive relationship at the above-ground phytomass of berry plants of living soil-cover in an absolutely dry state and the year of the succession (the occurrence of a polygon, or its reclamation). Corrections equations are derived at allow predictions changes the stocks of berry plants. The plants populations restored 45– 50 years after reclamation at the site of both gold and platinum-mining highly productive berry beds are formed by washing with a hydromonitors. Their average annual yield is 10,6–36,6 kg/ha, with projective coverage 37,2–55,6% and the above ground phytomass 530,6–645,2 kg/ha in absolutely dry state. At the site of the dredge polygons after 10–45 years of the primary succession of the soil cover, the berry beds are not formed. The projective cover of berry species on the field layer cover on them does not exceed 25,7 kg/ha the average annual fruit-yields is only 0,4–7,4 kg/ha and with the above-ground phytomass in on absolutely dry state-up to 159,0 kg/ha. The process of forming berry beds on reclaimed dredge-landfills proceeds much faster than in the absence of reclamation work.

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