Ecological assessment of regeneration abilities of microfaunistic complex soil invertebrates in conditions of recultivation to technogenic transformed light gray forest soils

The following paper presents the results of the ecological assessment of the technogenic impact on the number of microfaunistic complex of soil invertebrates in conditions of natural meadow biocenosis. The goal of the paper is to assess remediation actions impact on regeneration processes of microfauna community in conditions of technogenic transformed soils. The probes were carried out on gray forest sandy loamy soils of the Nizhny Novgorod Region. Micro arthropod was assessed according to methods admitted in soil zoology with subsequent extractions to laboratories by the Tulgrena-Berleze method with heating up by electro lamps. More than 4100 samples (125 cm³ each) have been analyzed to assess the total number of microfaunistic complex of broken soils. The results were the data reflecting dynamics of oribatides and collembols representatives population change in anthropogenically broken soils. The authors established that a mechanical violation of soil leads to sharp decrease of micro arthropod number. In conditions of technogenic influence the firmness of microfauna makes 17 pieces/m². The highest number of small soil invertebrates was established in 2018. The authors emphasize that the number of small terricolous most intensively increases when the soil is partially recultivated.