- Excess soil moisture and fresh carbon input are prerequisites for methane production in podzolic soil(2021-08-13) Korkiakoski, Mika; Määttä, Tiia; Peltoniemi, Krista; Penttilä, Timo; Lohila, Annalea; University of Helsinki - Korkiakoski, Mika; Natural Resources Institute Finland - Määttä, Tiia; Natural Resources Institute Finland - Peltoniemi, Krista; Natural Resources Institute Finland - Penttilä, Timo; University of Helsinki - Lohila, Annalea