The Working Group on Soil Systematics was founded in 1952. The first focus was a systematic grouping of soil genetic processes. In the course of time this goal was added by grouping soil formed parent materials and structuring soil associations (pedocoenosis). See www.bodensystematik.de (Rueckblick).
background from left to right: Peter Schad, Reinhold Jahn, Dieter Kühn, Karl Stahr,
Daniel Zizek, Hans-Peter Blume, Wolfgang Fleck, Reinhard Jochum,
Alexander Gröngröft and Daniela Sauer,
foreground: Michael Englisch and Gerhard Milbert