Terrestrial and aquatic ecosystems of the boreal to polar regions face tremendous alterations due to a fast changing climate. Besides geophysical and hydrological impacts like vanishing permafrost, coastal erosion and altered runoff, biogeochemical cycles are highly affected by the ongoing changes. Although we are completely aware of the importance of high latitude ecosystems for instance for carbon sequestration, we have a restricted understanding of the biogeochemical processes especially in terrestrial ecosystems. This session aims to bring together scientists working on terrestrial and aquatic ecosystems in the high latitudes, both in Arctic, Antarctic, and Boreal regions, reaching from microbiological functioning and stoichiometric constraints of organic matter turnover and nutrient cycling (e.g. nitrogen, phosphorus) to carbon stabilization and trace gas emissions. We further welcome contributions on interactions between vegetation, microbiota and soils and/or sediments, and the exchange between terrestrial and aquatic systems. Let’s come to together and share results, views and concepts to better understand biogeochemical cycling in boreal and polar regions.

Co-organized as BG1.54
Convener: Carsten W. Mueller | Co-conveners: Kathrin Rousk, Michael Gundale, Ryan Sponseller
| Mon, 08 Apr, 14:00–18:00
Room G1
| Attendance Tue, 09 Apr, 08:30–10:15
Hall X1

Monday, 8 April 2019 | Room G1

Chairperson: Kathrin Rousk, Carsten W. Mueller
14:00–14:15 |
| Highlight
Birgit Wild, August Andersson, Tommaso Tesi, Irina Pipko, Oleg Dudarev, Igor Semiletov, Natalia Shakhova, and Örjan Gustafsson
14:30–14:45 |
Aleksandr Sabrekov, Yuriy Litti, Oleg Kotsyurbenko, Irina Terentieva, Mikhail Glagolev, and Vasily Vavilin
14:45–15:00 |
Laurel Lynch, Malak Tfaily, Megan Machmuller, M. Francesca Cotrufo, Chao Liang, Rosalie Chu, Claudia Boot, Matthew Wallenstein, and Johannes Lehmann
15:00–15:15 |
| Highlight
Frida Keuper, Birgit Wild, Matti Kummu, Christian Beer, Gesche Blume-Werry, Sébastien Fontaine, Konstantin Gavazov, Norman Gentsch, Georg Guggenberger, Gustaf Hugelius, Mika Jalava, Charles Koven, Eveline J. Krab, Peter Kuhry, Sylvain Monteux, Andreas Richter, Tanvir Shahzad, James T. Weedon, and Ellen Dorrepaal
15:15–15:30 |
Alejandro Salazar, Kathrin Rousk, Jean-Philippe Bellenger, Ingibjörg Jónsdóttir, Eloisa Lasso, and Ólafur Andrésson
15:30–15:45 |
Alessandro Elio Agnelli, Giovanni Carini, and Alessandra Lagomarsino
Coffee break
Chairperson: Michael Gundale, Ryan Sponseller
16:30–16:45 |
Romain Darnajoux, Robert Bradley, Pauline Le Monier, Daniel Houle, and Jean-Philippe Bellenger
16:45–17:00 |
Róbert Blaško, Benajmin Forsmark, Annika Nordin, Michael Gundale, and Tomas Lundmark
17:00–17:15 |
Robin Wojcik, Johanna Donhauser, Beat Frey, Anja M. Schleicher, and Liane G. Benning
17:15–17:30 |
Oriol Grau, Olga Margalef, Hans Joosten, Pere Roc Fernández, Ellen Dorrepaal, Frida Keuper, Andreas Richter, Jordi Sardans, and Josep Peñuelas
17:30–17:45 |
Eleanor Louise Jones, Andy Hodson, Steve Thornton, Kelly Redeker, Ebbe Bak, Kai Finster, and Peter Wynn
17:45–18:00 |
Aino Smolander, Antti-Jussi Lindroos, and Veikko Kitunen