Landscape reconstructions for the latest 28 thousand years based on pollen data from lake Ebeyty (Omsk region)

Results of palynological and radiocarbon analyzes of sediments from saline endorheic Lake Ebeyty (Omsk region) are presented. 18 radiocarbon dates were generated in the “Center of Cenozoic Geochronology” SB RAS. The base of the core is about 28 ka BP. According to the pollen data, cold dry steppe landscapes were dominant during the maximum of the last glaciation up to 18 ka BP. The climate was dry and cold. Then (from 18 to 14 ka BP) forest-steppe landscapes appeared, birch and pine were widely spread. The climate became warmer and wetter. Forest-steppe dominated up to the early Holocene and the climate tended to warming. During the Middle Holocene from 7 to 3 ka BP, grass and wormwood steppes dominated. The climate was dry and warm. Modern forest-steppe landscapes appeared after 3 ka BP. The climate became wetter.