region of the Northern Hemisphere inferred from a pollen record of

• Main Authors: P. E. Tarasov, A. A. Andreev, B. Diekmann
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2009
• Subjects: Verkhoyansk; Tundra
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.470.2641; http://www.clim-past.net/5/73/2009/cp-5-73-2009.pdf

Abstract. In this study, a radiocarbon-dated pollen record from Lake Billyakh (65◦17 ′ N, 126◦47 ′ E; 340 m a.s.l.) in the Verkhoyansk Mountains was used to reconstruct veg-etation and climate change since about 15 kyr BP. The pollen record and pollen-based biome reconstruction suggest that open cool steppe (STEP) and grass and sedge tundra (TUND) communities with Poaceae, Cyperaceae, Artemisia, Chenopodiaceae, Caryophyllaceae and Selaginella rupestris dominated the area from 15 to 13.5 kyr BP. On the other hand, the constant presence of Larix pollen in quantities comparable to today’s values points to the constant presence of boreal deciduous conifer (CLDE) trees in the regional veg-etation during the Late Glacial. A major spread of shrub tun-dra communities, including birch (Betula sect. Nanae), alder (Duschekia fruticosa) and willow (Salix) species, is dated to