Biogaspotential hos våtmarksgräs - Biogas Öst

INNEHÅLLSFÖRTECKNING
BIOGASPOTENTIAL HOS VÅTMARKSGRÄS ...................................................... ii
ABSTRACT ................................................................................................ iii
BIOGAS POTENTIAL IN GRASSES FROM WETLANDS .................................... iii
FÖRORD ..................................................................................................... iv
POPULÄRVETENSKAPLIG SAMMANFATTNING ........................... v
BIOGASPOTENTIAL HOS VÅTMARKSGRÄS ...................................................... v
TERMINOLOGI ......................................................................................... x
INLEDNING ................................................................................................ 1
SYFTE .......................................................................................................................... 2
MÅL .............................................................................................................................. 2
METOD ........................................................................................................................ 2
1 BAKGRUNDSFAKTA ......................................................................... 3
1.1 SLÅTTERÄNGAR OCH VÅTMARKER ........................................................ 3
1.2 DJURLIV ........................................................................................................... 6
1.3 OMRÅDESSKYDD .......................................................................................... 7
1.4 MILJÖMÅLEN ................................................................................................. 7
1.5 BIOGASPROCESSEN ...................................................................................... 8
1.6 RÖTNING ....................................................................................................... 11
1.6.1 Lagring ...................................................................................................... 11
1.6.2 Förbehandling ............................................................................................ 12
1.6.3 Våtrötning .................................................................................................. 13
1.6.4 Samrötning ................................................................................................ 15
1.6.5 Torrötning .................................................................................................. 16
1.6.6 Rötrest ........................................................................................................ 17
1.7 ATTRAKTIVA OMRÅDEN, ”HOTSPOTS” ................................................. 18
1.8 EKONOMISKA STÖD ................................................................................... 18
2. MATERIAL OCH METODER ......................................................... 20
2.1 UPPSKATTAD BIOGASPOTENTIAL .......................................................... 20
2.2 SLÅTTER .................................................................................................. 21
2.3 LOKALISERING AV SLÅTTERMARKER .................................................. 21
2.3.1 Databaser och GIS-material ....................................................................... 21
2.3.2 Ängs- och betesmarksinventeringen .......................................................... 22
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