The stacking column represents changes in the stock of organic carbon between the first and second BZE. Three classes were formed: Decrease to low increase (less than or equal to 0.23 tonnes per hectare per year), moderate increase (between more than 0.23 to less than or equal to 0.45 tonnes per hectare per year) and high increase (more than 0.45 tonnes per hectare per year). For these initial evaluations, the category boundaries were set so that each class has a share of about one third.
FW-R-5: Humus reserves in forest soils

The stacking column represents changes in the stock of organic carbon between the first and second BZE. Three classes were formed: Decrease to low increase (less than or equal to 0.23 tonnes per hectare per year), moderate increase (between more than 0.23 to less than or equal to 0.45 tonnes per hectare per year) and high increase (more than 0.45 tonnes per hectare per year). For these initial evaluations, the category boundaries were set so that each class has a share of about one third.

Source: Thünen-Institut für Waldökosysteme (analyses on the basis of the soil inventory (BZE) in forests)image download