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100 _aMilecka, Krystyna
_958886
245 _aSusceptibility of small boreal lakes to environmental changes as inferred from organic sediments of Lake Talvilampi Finland/
260 _bSage,
_c2020.
300 _aVol. 30, issue 3, 2020 ( 458–473 p.).
520 _aDuring the Holocene, multiple thermal changes commonly occurred in the northern hemisphere. They are well-recorded in lakes with minimum human impact from the Arctic Circle area. The development of these lakes reflects ecological and climatic changes occurring from the formation of the lakes until present-day times. All environmental fluctuations affect biodiversity and are reflected in the number and composition of species. The goals of this study were to detect the ecological changes in a small Finnish lake using pollen, Cladocera and geochemical analyses. The research area is located within the northern zone of boreal coniferous forest and is the most sparsely populated region of Finland. The lake is located in Kuusamo uplands, E Finland, near the polar circle and over 20 km from the Russian border. Indicators of cold water were found only during the initial stage, after the 8.2 ka event and then the temperature was higher. Trophy was high at the beginning of the lake development and then a significant increase in trophy was found after 2600 BP. The impact of human activity is hardly traceable in Arctic Circle Finland throughout the Holocene Thermal Maximum. During the late-Holocene (after 4200 yr cal. BP), this impact is still weak and, even as late as the 20th century, only a few traces of human activity are recorded. General conclusion is that long-term climatic shift has been the most important factor driving changes in the limnology of Lake Talvilampi.
700 _aMirosław-Grabowska, Joanna
_958887
700 _aZawisza, Edyta
_958888
700 _aKowalewski, Grzegorz
_958889
773 0 _012756
_917200
_dLondon: Sage Publication Ltd, 2019.
_tHolocene/
_x09596836
856 _uhttps://doi.org/10.1177/0959683619887432
942 _2ddc
_cEJR
999 _c15040
_d15040