Stora Loftet, Ultuna, SLU.

Lunch seminar "Fungal communities and their functioning in the Arctic-Boreal transition"

<p>by Carina Clemmensen,</p> <p>Researcher at the Department of Forest Mycology and Pathology, Swedish University of Agricultural Sciences</p> <p style="text-align: center;"><img src="http://www.slu.se/Global/externwebben/forskarskolor/focus-soils-water/FoSW_logo.jpg" alt=""></p>

The warming climate is shifting forest northwards into the arctic tundra, which is currently storing a large proportion of the global soil C stock. The biotic feed-backs from tundra ecosystems to future climatic changes are highly uncertain. In a recent study we hypothesized that increasing abundance of shrubs and trees along the tundra-to-forest ecotone would be linked to increasing abundance of symbiotic ectomycorrhizal fungi and consequently decreasing stocks of soil carbon, due to more efficient recycling of organic matter. We combined high-throughput pyrosequencing to characterize fungal communities with ecosystem level measurements, such as C, N and stable isotope pools and biomass estimates. Our results clearly suggest that birch forest expansion into the Scandinavian heath tundra would shift the main C storage from soil to tree stems - and the relative importance of saprotrophic versus mycorrhizal fungi for this shift will be up for discussion.


Time: 2010-11-22 11:30 - 13:00
Location: Stora Loftet, Ultuna, SLU.
Organiser: Focus on Soils & Water
Additional info:

Register for lunch (free of charge) by e-mail to Linnea Berglund no later than 18 November 2010. Please inform if you wish vegetarian food or have any food allergies. Lunch is served at 11.30 and the seminar starts at 12.00.


Linnéa Berglund, Evgheni Ermolaev & Carina Ortiz