cc-by-4.0Rissanen, Antti JuhaniOjanen, PaavoStenberg, LeenaLarmola, TuulaAnttila, JaniTuominen, SakariMinkkinen, KariKoskinen, MarkkuMäkipää, Raisa2025-03-242022-11-212022-11-21https://hydatakatalogi-test-24.it.helsinki.fi/handle/123456789/10347Six datasets regarding our study on methane emissions of ditches of boreal forestry-drained peatlands of Finland: Dataset 1: Accepted methane fluxes analysed via manual chamber technique from ditches of 21 boreal forestry-drained peatland study areas located in Finland. Dataset 2: Temperature within ditches of 3 boreal forestry-drained peatlands (Ränskälänkorpi, Lettosuo and Paroninkorpi) studied in 2021.  Dataset 3: Relative water table level (relative to the level in the beginning of June 2021) in ditches of 3 boreal forestry-drained peatlands (Ränskälänkorpi, Lettosuo and Paroninkorpi) studied in 2021.  Dataset 4: Yearly methane emission factors calculated for different types of ditches in the study areas. Dataset 5: Tested random forest models' variables and their mean decrease in accuracy, and models' error rates in classifying boreal peatland forest ditches into moss-covered and moss-free categories. Dataset 6: Tested random forest models (as zipped .RData files) to classify boreal peatland forest ditches into moss-covered and moss-free categories.  Openmethane (CH4), IPCC emission factor, greenhouse gas (GHG), peatland, organic soil, wetland, ditch, drainage, forestry, moss, Sphagnumdataset