Finlands Akademi  
Sökande / Kontakt person Tuittila, Eeva-Stiina
Organisation Östra Finlands universitet
Projektets titel Drying trend in boreal peatlands - impacts and mechanisms (BorPeat)
Beslutnr 330840
Beslutsdatum 27.05.2020
Finansierings period 01.09.2020 - 31.08.2024
Finansiering 511 084
Beskrivning av projektet
The response of terrestrial ecosystems to climate change is a key uncertainty. The response of northern peatlands has a high impact because they store a third of the global soil organic carbon reserves and act as net sources of CH4. Vegetation of arctic peatlands has changed as a result of thawing permafrost and their greenhouse gas (GHG) dynamics have drastically altered. Recent studies on boreal peatlands indicate a drying trend in their vegetation composition but the response varies between peatland types. We aim to assess if the drying trend is a widespread phenomenon and also detectable in the GHG dynamics, and identify underlying mechanisms behind the ongoing change. We use a long-term experimental site in Finland, and a suite of EC sites in Finland, Sweden and Canada with the longest records of pristine boreal peatland GHG fluxes.