S.Schob, R.Meißner, H. Rupp, S.Bernsdorf
Proceedings of the 14th International Peat Congress
extensive-grassland-managements, fens, nature-park-dromling, rewetting
Theme III. Agricultural use of peat and peatlands
In the Nature Park Drömling a trade-off exists between the ban of deterioration of the FFH habitat type 6510 and rewetting to preserve typical fen soils. The study aimed of the development of optimized management strategies for this habitant type. It has to be ensured that the main receiving water course, the Ohre River (a tributary of the Elbe River) will not be burdened with additional nutrients, because a considerable part of the total runoff is used for groundwater recharge to ensure drinking water supply of Greater Magdeburg. An in situ experiment was established at two test fields’ which comprises two differentiated fertilization and management levels. Soil, soil solution and plant biomass were analyzed for their contents of macronutrients. The results showed that the soil of the sites was good supplied with the nitrogen and phosphorus but potassium (K) is the limited yield factor. Another conclusion was that the different grassland management had no influence of soil, near surface groundwater and plant biomass nutritions. However the application of potash 60 showed impacts of the soil water regimes and also of the quality parameter of soil, plant biomass and the draining ditch.