Welcome to the website of the Working Group Humus Forms of the German Soil Science Society.

Symposium Water Balance and Element Budget of forest soils under stressing Conditions
24^th to 26^th April – Göttingen – Registration

On our website you will find the current German systematics of humus forms as well as the definition of the horizons relevant to humus forms and a glossary about important technical terms. A detailed description of the new sysematics of humus forms can be found in our publication

Please address your inquiries to Christine Wachendorf: Mail contact

Olf: a modified Of horizon, poor in fine humus material, with droppings of soil fauna                © Jan Evers