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Опорный разрез верхового болота Валдая как источник палеоэкологической и палеоклиматической информации.
Paleoclimatic reconstruction of the last 14 thousand years has been carried out based on the materials of geo-radar sounding, spore-pollen analysis and radiocarbon dating of the peat section (7 m) of the model upland swamp of the Valdai National Park (Novgorod Region). The rates of peat accumulation ranged from 0.075 mm/year in the Late Glacial to 1.15 mm/year in the Boreal (during the fall of the level of the Valdai lakes by 10 m) and 4.25 mm/year in recent centuries. Numerous cycles of Holocene warming/cooling were in the range of ± 1-2 C to modern and were accompanied by moderate fluctuations in annual precipitation (± 25-50 mm). The largest rearrangements of the forest cover occurred during the warming in the Atlantic period, when spruce-deciduous forests and oak forests dominated the region. Over the past two millennia, the vegetation dynamics of the region has been influenced mainly by agricultural activities.