1. Technical University of Munich Chair of Soil Science, TUM School of Life Sciences Weihenstephan Emil-Ramann-Str. 2 85354 Freising Germany
2. Bavarian State Research Center for Agriculture Institute for Organic Farming, Soil and Resource Management Lange Point 6 85354 Freising Germany
3. Bavarian Environment Agency Hans-Högn-Straße 12 95030 Hof Germany
4. Technical University of Munich Institute for Advanced Study Lichtenbergstraße 2a 85748 Garching Germany