Přirozené a člověkem podmíněné vegetační změny během posledního glaciálu a časného holocénu

Kuneš, Petr

Conclusions The main conclusions, specific to each research topic, have been mentioned in appropriate chapter. To summarize, the thesis brings new original data and reinterprets existing pollen assemblages of the last glacial and early Holocene in central Europe. It also deals with analysis of the analogues and with vegetation-pollen relationship when interpreting past vegetation. The study of analogue environment brought several important conclusions. A considerably tight relationship was found between the composition of pollen spectra and climate characteristics in southern Siberian analogue landscape. This means that past climatic conditions can be reasonably predicted by the fossil pollen spectra. There were found the best pollen predictors (such as Pinus sylvestris, P.cembra, Betula alba, Artemisia, Graminae) and 300 m distance around the sampling point as the best factors explaining vegetation type. Vegetation was interpreted for the last glacial and the beginning of the Holocene in the light of new palaeobotanical finds and according to modern approaches. Occurrence of some tree species during various stages of the last glacial were confirmed, however, local discrepancies in vegetation and climate were also highly important. This supports strong gradient in increasing treelessvegetation from the...

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