Home – Home – Jornals – Contemporary Problems of Ecology 2021 number 6

The analysis of the state of soil macrofauna during the period of reduction of emissions of pulp and paper production revealed changes in the structural parameters of invertebrate communities in the pine and spruce forests of the impact, buffer and background areas. The macrofauna of pine and spruce forests is characterized by a high degree of similarity and low diversity at the level of large taxa. It is a typical feature of coniferous forests in the middle taiga subzone. The species richness of invertebrate communities is estimated for the period from 2003 to 2019 years. It is comparable for the impact and buffer areas, and it is almost twice lower than for the background area. The total number of macrofauna, as well as taxonomic groups, varies by periods and areas of load. In 2007 and 2010, a change of dominant species was observed in the pine forests of the impact area. Lithobius curtipes C. L. Koch, 1847, Pella humeralis (Gravenhorst, 1802) predominated in the buffer and background area, and Philonthus rotundicollis (Menetries, 1832), Philonthus politus (Linnaeus, 1758) predominated in the impact area. In 2018, no changes of dominants were detected in pine forests, as in spruce forests (in 2006, 2010, 2019). Dendrobaena octaedra (Savigny, 1826) and L. curtipes were dominants in the impact, buffer and background area. The predominance of zoophages is typical for all the studied plots. The number of some taxa (Lumbricidae, Diplopoda, Elateridae) indicated an increase in the relative abundance of saprophages in the soils of coniferous forests at the impact area. The soils of background area, with high natural acidity, are unsuitable for activity of invertebrates. Due to the effect of neutralizing the acidity of the soil near the pulp and paper enterprise favorable conditions are created for them.