Finlands Akademi  
Sökande / Kontakt person Heikkilä, Maija
Organisation Helsingfors universitet
Projektets titel Beyond the shore: past sea-ice cover and lake ecosystems in the Arctic
Beslutnr 334509
Beslutsdatum 27.05.2020
Finansierings period 01.09.2020 - 31.08.2024
Finansiering 495 490
Beskrivning av projektet
Arctic lakes and ponds are of key importance to carbon cycling, biodiversity and socio-economic sustainability. They cover up to half of the arctic tundra landscape adjacent to seasonally ice-covered Arctic Ocean. The accelerated year-round sea-ice loss has potential direct and indirect impacts on arctic lake ecosystem functioning, but this aspect has received little attention. This project uses natural biogeochemical sediment archives to investigate the linkages between sea-ice cover and arctic lake ecosystems over the past warm and cold phases of the Common Era. The results will improve our understanding of the interconnections of Arctic system components, specifically on the control that disappearing sea ice will have on lake ecosystem functioning.