Peatinvert Prosjektbilde (Photo: Sissel Hansen. Tekning: Madlen Berent)
(Photo: Sissel Hansen. Tekning: Madlen Berent)

Peat inversion for reducing GHG emissions from farmed organic soils (PEATINVERT)

The objective of PEATINVERT is to test if inversion of peat reduces GHG emissions from cultivated peat soil relative to conventionally drained peat and to compare GHG emissions of both management systems with those from uncultivated peatland.


  • Study the effect of peat inversion on peat stability
  • Estimate the carbon balance of inverted and tile-drained peatland under grassland cultivation
  • Compare methane (CH4) emissions from tile drained, inverted and uncultivated peatland
  • Unravel the role of bacterial CH4 oxidation for the GHG balance in inverted and tile-drained peat.
  • Study fertilizer-induced N2O emissions in inverted and tile-drained peat

In an area with shallow peat soil with self-draining silty sand beneath, we compare the effect of tile drainage and inversion of peat. Inversion means that the peat body is covered by the underlying mineral soil while maintaining connectivity to the self-draining subsoil by tilted layers. We are investigating the effects on yields, bearing capacity, nitrogen utilization, emissions of N2O and CH4 and if inversion protects the peat from degradation NORSØK's role is to process, summarize and publish results on emissions of N2O and CH4 in cooperation with the project group. You will find more information at

Project details (1)

Project number:NFR/267456
Project owner:NIBIO
Project staff NORSØK:Sissel Hansen and Peggy Haugnes
Project partners: NIBIO, NMBU and Landbruk Nordvest
Funding:Norges forskningsråd/ Forskningsmidler for jordbruk og matindustri, Fylkesmennene i: Rogaland, Hordaland, Sogn og Fjordane, Møre og Romsdal, Trøndelag og Nordland, Landbruksnæringa ved samarbeidsråda for landbruket på Vestlandet og Midtnorsk Samarbeidsråd, Landbruk Nordvest, Norske Felleskjøp og TINE.
Project period: