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SUMMARY:Ongoing Regime Shifts in Arctic and Subarctic Peatlands: A Palaeoe
 cological Perspective - Sanna Piilo - University of Helsinki
DTSTART:20260319T160000Z
DTEND:20260319T170000Z
UID:TALK245524@talks.cam.ac.uk
CONTACT:109526
DESCRIPTION:Peatlands\, which cover only 3% of the Earth's land area\, are
  critical carbon sinks\, storing nearly one-third of global soil carbon 
 – more than the total carbon stock of all forests combined. However\, ma
 ny high latitude peatlands are currently experiencing regime shifts charac
 terised by changes in hydrology\, nutrients\, and plant communities. These
  shifts have profound implications for peatland vegetation\, carbon dynami
 cs\, and climate regulation.\n\nPalaeoecological data\, including plant su
 bmacrofossils and testate amoebae\, provide valuable insights into the his
 torical dynamics of peatlands. Our recent research in Arctic and Subarctic
  regions has documented the formation of new organic soils and notable shi
 fts in peatland vegetation\, particularly an increase in Sphagnum mosses (
 peat moss). Sphagnum mosses are highly resistant to decay and play a key r
 ole in carbon sequestration. This prompts us to explore the broader implic
 ations of these changes for future peatland carbon storage potential.
LOCATION:Scott Polar Research Institute\, main lecture theatre
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