Division: Hydromorphic Humus Forms
Criteria to differentiate between hydromorphic humus forms are important to characterise their high importance as carbon sink, as climate regulator and as habitat for biodiverse soil organism communities.
Hydromorphic humus forms develop under the long-term impact of stagnant water or groundwater.
Two humus form classes are defined:
Class Humus forms of natural fens and bogs (peat forming humus forms)