Video: Drained peatlands can act both as sinks and sources of carbon
Drained peatlands cover vast areas in Finland, and as they can both absorb and emit carbon dioxide, they affect significantly the carbon balance. Measurements at a drained nutrient-poor peatland in Southern Finland showed the carbon balance to be negative, or the forest to be a carbon sink. In addition to the tree stand, also the carbon stock of the peatland grew. The results are surprising as the forestry-drained peatlands are commonly thought to release more carbon than the growing tree stand can absorb.
Interviewee: Researcher Annalea Lohila, Finnish Meteorological Institute
Video length: 5:10 min
Language: Finnish, with English subtitles
For courses in Finnish upper secondary schools: BI1, BI3, GE1, GE3, KE1 (old) -> BI1, BI2, GE2, GE1, KE1 (new curriculum/OPS)
Filmed by: Riku Mesiniemi ja Anna Puustinen, Finnish Meteorological Institute