Spatiotemporal patterns of northern lake formation since the Last Glacial Maximum

QUATERNARY SCIENCE REVIEWS

卷:253

Article

Brosius, L. S.^1,2  Anthony, K. M. Walter^1,3  Treat, C. C.^1,4,5  Lenz, J.^1,5  Jones, M. C.⁶  Bret-Harte, M. S.²  Grosse, G.^5,7 

[1] Univ Alaska Fairbanks, Water & Environm Res Ctr, POB 755910, Fairbanks, AK 99775 USA

[2] Univ Alaska Fairbanks, Dept Biol & Wildlife, POB 756100, Fairbanks, AK 99775 USA

[3] Univ Alaska Fairbanks, Int Arctic Res Ctr, Fairbanks, AK 99775 USA

[4] Univ Eastern Finland, Dept Environm & Biol Sci, POB 1627, FI-70211 Kuopio, Finland

[5] Alfred Wegener Inst, Helmholtz Ctr Polar & Marine Res, Telegrafenberg A45, D-14473 Potsdam, Germany

[6] US Geol Survey, Natl Ctr, MS 926A,12201 Sunrise Valley Dr, Reston, VA 20192 USA

[7] Univ Potsdam, Inst Geosci, Karl Liebknecht Str 24-25, D-14476 Golm, Germany

关键词: Interglacial;    Climate dynamics;    Paleolimnology;    Panarctic;    Data compilation;   

DOI  :  10.1016/j.quascirev.2020.106773

来源: Elsevier

【 摘 要 】

The northern mid- to high-latitudes have the highest total number and area of lakes on Earth. Lake origins in these regions are diverse, but to a large extent coupled to glacial, permafrost, and peatland histories. The synthesis of 1207 northern lake initiation records presented here provides an analog for rapid landscape-level change in response to climate warming, and its subsequent attenuation by physical and biological feedback mechanisms. Our compilation reveals two peaks in northern lake formation, 13,200 and 10,400 years ago, both following rapid increases in North Atlantic air temperature. Placing our findings within the context of existing paleoenvironmental records, we suggest that solar insolation-driven changes in climate (temperature and water balance) that led to deglaciation and permafrost thaw likely contributed to high rates of northern lake formation during the last Deglacial period. However, further landscape development and stabilization dramatically reduced rates of lake formation beginning similar to 10,000 years ago. This suggests that temperature alone may not control future lake development; rather, multiple factors must align to enable a landscape to respond with an increase in lake area. We propose that land surfaces strongly geared toward increased lake formation were highly conditioned by glaciation. Thus, it is unlikely that warming this century will cause lake formation as rapid or as widespread as that during the last Deglacial period. (C) 2020 Elsevier Ltd. All rights reserved.

【 授权许可】

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