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UID:20250626T214437EDT-2009vNznae@132.216.98.100
DTSTAMP:20250627T014437Z
DESCRIPTION:Dr. Tiina Kolari\n\n Postdoctoral researcher\, Geotop-UQAM\n\nT
 uesday\, September 17\, 2024 \n\n12:30pm \n\nLocal PK-7605\, 7e étage\, 20
 1 ave. du Président-Kennedy\n\nZoom: https://uqam.zoom.us/j/83216327466?pw
 d=WnZJNldCaS8xL1M4VDdadUVENHQ1dz09\n\nRecent and potential future trends i
 n vegetation changes in middle boreal peatlands: insights from Finland\n\n
 Résumé / abstract:\n\nOngoing climate change threatens the diversity and c
 arbon sink capacity of northern mires (i.e.\, intact peatlands). It is com
 monly expected that warming will result in degradation by drying and\, con
 sequently\, carbon losses\, but some studies have projected increasing pro
 ductivity and carbon accumulation in northern mires. Carbon accumulation i
 s ultimately determined by the balance between plant productivity and deco
 mposition\, which depends on vegetation and hydrology. Thus\, it is critic
 al to recognize ongoing vegetation trends and hydrological changes before 
 the question of the fate of northern peatlands as future carbon sinks can 
 be fully solved. My PhD. work focused on recent (1940–present) vegetation 
 trends in boreal aapa mires in a changing climate. I used vegetation resur
 veys and a spatial chronosequence approach\, both supported by spatial ana
 lyses of historical and new aerial photographs and Landsat satellite image
 s. In this presentation\, I will show how species richness\, plant communi
 ty structure\, spatial patterns of plant functional groups\, and hydrology
  have changed since the 1940s and discuss the potential causes and implica
 tions. Most importantly\, this presentation highlights the ongoing transit
 ions from fen to bog vegetation dominated by Sphagnum mosses\, the most im
 portant genus for storing carbon as peat.\n
DTSTART:20240917T163000Z
DTEND:20240917T173000Z
SUMMARY:Geotop Seminar Series: Dr. Tiina Kolari
URL:/eps/channels/event/geotop-seminar-series-dr-tiina
 -kolari-359383
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