Biogaspotential hos våtmarksgräs - Biogas Öst

2.3.3 Våtmarksinventeringen (VMI) .................................................................. 23
2.3.4 SMD-analys ............................................................................................... 24
2.4 EKONOMI ....................................................................................................... 25
2.5 ”HOTSPOTS” OCH VÅTMARKER .............................................................. 26
3 RESULTAT ......................................................................................... 27
3.1 ENERGIINNEHÅLL OCH BIOGASPOTENTIALER .................................. 27
3.2 SMÅSKALIG SLÅTTER ................................................................................ 28
3.3 STORSKALIG SLÅTTER .............................................................................. 30
3.4 EKONOMI ....................................................................................................... 33
3.4.1 Nyckeltal för småskalig maskinslåtter ....................................................... 33
3.4.2 Nyckeltal för storskalig slåtter ................................................................... 34
3.5 GIS-ANALYSER ............................................................................................ 36
3.5.1 VMI ........................................................................................................... 36
3.5.2 Ängs- och betesmarksinventeringen .......................................................... 37
3.5.3 Dubbelrepresentation ................................................................................. 38
3.6 AVKASTNING OCH BIOGASPRODUKTION ............................................ 39
3.6.1 ”Hotspots” ................................................................................................. 41
4 DISKUSSION ...................................................................................... 42
4.1 ENERGIOMVANDLING VIA VOS-FODERDATA ..................................... 42
4.2 ENERGIINNEHÅLL OCH AVKASTNING AV VÅTMARKSGRÄS ......... 44
4.3 GASUTBYTE OCH UPPEHÅLLSTIDER ..................................................... 46
4.4 EKONOMI ....................................................................................................... 49
4.4.1 Småskalig slåtter ........................................................................................ 49
4.4.2 Storskalig slåtter ........................................................................................ 49
4.5 GIS-ANALYS ................................................................................................. 51
4.5.1 VMI ........................................................................................................... 51
4.5.2 TUVA ........................................................................................................ 52
4.5.3 Våtmarkskartor .......................................................................................... 53
4.6 SUBSTRATASPEKTER ................................................................................. 54
4.6.1 Lagring ...................................................................................................... 54
4.6.2 Förbehandling ............................................................................................ 54
4.6.3 C/N-kvot ................................................................................................... 56
4.6.4 Samrötning ................................................................................................ 57
viii