Markku Koskinen, Liisa Maanavilja, Kari Minkkinen, and Eeva-Stiina Tuittila
Proceedings of the 14th International Peat Congress
drainage, restoration, rewetting, soil-microbial-activity, spruce-swamp-forests
Theme X. Peatland carbon budgets and greenhouse gas (GHG) fluxes
CH4 emissions were measured using a closed-chamber discrete sampling technique during the summer and autumn 2011 on pristine, drained and restored meso- and meso-eutrophic spruce swamp forests in the south boreal vegetation zone in Finland. First results indicate that contrary to expectations, draining of a spruce swamp forest does not affect CH4 emissions. Intra-site differences were greater than inter-site differences, with largest emissions measured from ditches on the drained and restored sites and from the mire edges on the pristine sites.