1. University of Hamburg; Institute of Soil Science; KlimaCampus, Allende-Platz 2; 20146; Hamburg; Germany
2. Max Planck Institute for Biogeochemistry; Hans-Knöll-Str. 10; 07745; Jena; Germany
3. Faculty of Geography and Geoecology; University of St. Petersburg; 33, 10th line; 199178; St. Petersburg; Russia
4. Helmholtz Centre Potsdam; GFZ German Research Centre for Geosciences; Section 4.5 Geomicrobiology; Telegrafenberg; 14473; Potsdam; Germany