Evelyn Wallor, Janine Dzialek, Jutta Zeitz
Proceedings of the 14th International Peat Congress
carbon-loss, climate-change, fen-soils, modelling
Theme III. Agricultural use of peat and peatlands
In Brandenburg, North-East Germany, fen soils cover about 44 % of the area. They are principally used as grassland and, hence, affected by drainage and cultivation. Local climate trends intensify the importance of these soils according to their native functionality of carbon and water retention. To describe soil development and actual site status, previous data sets are referenced to actual soil analysis. This is exemplarily shown for intensive and extensive used sites of the Randow lowland. Calculated carbon loss accounts for intensive grassland between 2.5 and 6.5 t per ha and year, regulated by groundwater level and thickness of fen soil. As expected, carbon loss under extensive land-use is less. The applied Peatland Management Decision Support System provides with appropriate data and allows for a differentiation between the impact of drainage and land-use and the impact of local climate change.