Paludiculture Potential in North East Germany
Total Page:16
File Type:pdf, Size:1020Kb
Reed as a Renewable Resource; Greifswald; Feburary 14.-16. 2013 Paludiculture Potential in North East Germany Christian Schröder University of Greifswald Foto: W. Thiel Natural versus drained peatland Mire = growing peatland peat-formation carbon storage surface raise water table Drained peatland peat degradation CO2-Emissions subsidence water table Nabu 2012 Peatlands of Mecklenburg- Western Pomerania ca. 300.000 ha 13% of the total area 95% are drained Peatland Drainage peat degradation subsidence increase of drainage costs management problems -1 -1 25tons CO2 eqha a Annual CO2 emissions in Mecklenburg- Western Pomerania 7 Used 6 For Forestry 5 4 equ per year per equ - 2 Used 3 For t CO 6 Agriculture 2 1 Semi- 0 natural Emissions in 10 Emissions Public energy Industry Traffic Small Emissions and remote customers from heating supply peatlands MLUV 2009 Agricultural used peatlands show highest emissions Estimation of GHG-Emissions from peatlands 70 60 1 - 50 CO2 yr CH4 1 - 40 GWP 30 äq ha äq emissions - - 20 2 10 t CO t GHG 0 -10 -20 -100 -80 -60 -40 -20 0 20 water table[cm] Rewetting of peatlands Loss of agricultural land Use wet peatlands ! Paludiculture Paludiculture „palus“ – lat.: swamp, marsh Sustainable land use of peatlands Production of biomass Preservation of the peatbody Reduction of greenhouse gas emissions Maintain ecosystem services Peatland conservation by sustainable land use Nature conservation vs. paludiculture rewetting frequency of harvesting water managment planting fertilisation intensity of land use Nature conservation Paludiculture management Use of Biomass Raw material for industrial use Harvesting Energy generation Paludibiomass as a raw material Foto: W. Wichtmann Photo: S. Wichmann Photo: www.typhatechnik.com Photo: S. Wichmann Photo: S. Wichmann Paludibiomass as a biofuel Foto: W. Wichtmann Foto: S. Wichmann Foto: L. Lachmann Foto: C. Schröder Paludiculture Potential for Mecklenburg-Western Pomerania Paludiculture Potential for Mecklenburg-Western Pomerania GIS-analysis for Greifswald 30 km radius 37.000 ha (16%) peatlands expert guess: 7.000 ha for paludiculture 56.000 t biomass (8 t ha-1) 19% suitable for paludiculture Dahms 2010 Paludiculture - Potential for Mecklenburg-Western Pomerania Reduction of GHG emissions 300.000 ha peatlands 19% 57.000 ha paludiculture Rewetting Substitution of fossil fuel -1 -1 -1 25t CO2 eq ha a 456.000t biomasse (8 t ha ) -1 -1 10t CO2 eq ha a 188.000t fuel oil -1 -1 855.000 t CO2 eq a 570.000 t CO2 eq a -1 Reduction of ~ 1.4 Mio t a CO2 eq a Conclusion Sustainable „wet“ peatland agriculture is needed Utilisation of biomass from wet peatland is possible Paludiculture on fen peat can provide large amount of biomass for different purposes Paludiculture can reduce green house gas emissions from peatland www.paludiculture.com .