Earthworms (Lumbricidae, Annelida) as a Component of Artificial Forest Ecosystems in the Northern Caspian Semidesert

The results of an ongoing 50-year experiment of introduction of the species Eisenia nordenskioldi into massive oak plantations (Quercus robur L.) in the Northern Caspian semidesert are analyzed. The change in the quantitative proportion of the dominant earthworm species due to the growth and conditions of forest cultures as well as their impact on meadow-chestnut soils is considered.