Microorganisms living in soil are usually well adapted to environmental fluctuations, but are challenged by unfavourable conditions related to the food supply combined to variations in temperature, soil moisture, electron acceptor availability, predators, viruses, and mechanical forces. Despite being well-adapted, we do not know how microbial metabolism and community composition will be affected by changes in these conditions. In fact, climate scenarios predict not only continued global warming but also strong changes in temperature and precipitation. At the same time, we have seen major shifts in land use with an increase in large-scale agricultural practices and urbanization. Both climate and land-use change alter the metabolism of soil organisms and soil biodiversity from the micro-scale (bacteria, fungi, archea, protozoa, virus) to the macro-scale (soil animals, earthworms, arthropods, nematodes, etc.). This can have significant ramifications for soil functions including soils’ ability to store organic carbon, support agriculture and conserve biodiversity.
This session collects experimental and modelling studies to understand microbial life, propagation, communication, growth, functioning, adaptations, maintenance metabolism, death, and necromass stabilisation in soil. Plant-microbe interactions and soil biota contribution to carbon sequestrations and crop production are also considered. In this broad context, this session also presents contributions on carbon use efficiency (CUE=ratio of biomass production over carbon substrate consumption) as an indicator or microbial metabolism. These include CUE estimation in soil using advanced methods – isotope labelling, kinetic studies, isothermal calorimetry, and approaches disclosing the effect of microbial community composition and activity on CUE – and modelling studies. A major common challenge in all these areas of soil ecology is how to scale observations and model concepts from organism and communities to soil profiles, ecosystems and finally to scales relevant to management and policy, all the way to the global scale. We thus welcome innovative and interdisciplinary studies that are pushing the field of soil ecology from the understanding of ecological and biogeochemical processes in soils to addressing global sustainability issues.

Convener: Stefano Manzoni | Co-conveners: Sergey Blagodatsky, Anke Herrmann, Maria Mooshammer, Kelly Ramirez
| Wed, 10 Apr, 14:00–18:00
Room -2.20
| Attendance Thu, 11 Apr, 08:30–10:15
Hall X1

Wednesday, 10 April 2019 | Room -2.20

Chairperson: Anke Herrmann, Stefano Manzoni
14:00–14:15 |
Johannes Rousk and Lettice Hicks
14:15–14:30 |
Ainara Leizeaga, Lettice C. Hicks, and Johannes Rousk
14:30–14:45 |
Stefan Gorka, Shasha Zhang, Christian Ranits, Bruna Imai, and Christina Kaiser
14:45–15:00 |
Stefan Geisen
15:00–15:15 |
Anna Gunina, Olga Ogneva, Chengrong Chen, Maryam Esfandbod, Mehran Rezaei Rashti, and Yakov Kuzyakov
15:15–15:30 |
Sebastian Loeppmann, Peng Tian, Andreas Breidenbach, Sandra Spielvogel, Michaela Dippold, and Evgenia Blagodatskaya
15:30–15:45 |
| solicited
Serita Frey, Kristen DeAngelis, Kevin Geyer, Stuart Grandy, Emily Kyker-Snowman, Eric Morrison, Grace Pold, and Shana Whitney
Coffee break
Chairperson: Maria Mooshammer, Sergey Blagodatsky
16:15–16:30 |
| solicited
Hana Santruckova, Jolanta Niedzwiecka, Roey Angel, Travis B. Meador, and Tomas Picek
16:30–16:45 |
Jolanta Niedzwiecka, Roey Angel, Travis Meador, Tomas Picek, and Hana Santruckova
16:45–17:00 |
Jörg Schnecker, Eva Simon, Philipp Gündler, Taru Sandén, Heide Spiegel, and Andreas Richter
17:00–17:15 |
Meike Widdig, Per-Marten Schleuss, Lori A. Biederman, Elizabeth T. Borer, Mick J. Crawley, Kevin P. Kirkman, Eric W. Seabloom, Peter D. Wragg, and Marie Spohn
17:15–17:30 |
Kendalynn Morris, Kirsten Küsel, Marion Schrumpf, Mirco Migliavacca, and Andreas Richter
17:30–17:45 |
Haicheng Zhang, Daniel S. Goll, Philippe Ciais, Stefano Manzoni, Ying-Ping Wang, Bertrand Guenet, Yuanyuan Huang, and Rose Abramoff
17:45–18:00 |
Thomas Wutzler, Sönke Zaehle, and Marion Schrumpf