Rozwój Irkucka a efekty antropopresji

Abstract

On the base of analyses of archival and cartographic materials 5 stages of Irkutsk development were distinguished: 1) 1652–1750; 2) 1750–1879, 3) 1879–1903, 4) 1903 – till the 1950s., 5) since the 1950s. – till the present time. In result of 350-years lasting human activity geosystem of Irkutsk essentially changed. Natural conditions and permanently increasing anthropogenic load caused the formation of new natural-anthropogenic system. One should notice, however, that the significance of natural factors clearly decreases and some processes connected with them com-pletely stopped functioning. Whereas numerous contemporary phenomena develop under the influence of anthropo-genic factors in new technogenic environment.