TY - T1 - Topography-based statistical modelling reveals high spatial variability and seasonal emission patches in forest floor methane flux SN - / UR - http://hdl.handle.net/10138/328258 T3 - A1 - Vainio, Elisa; Peltola, Olli; Kasurinen, Ville; Kieloaho, Antti-Jussi; Tuittila, Eeva-Stiina; Pihlatie, Mari A2 - PB - Y1 - 2021 LA - eng AB - Boreal forest soils are globally an important sink for methane (CH4), while these soils are also capable of emitting CH4 under favourable conditions. Soil wetness is a well-known driver of CH4 flux, and the wetness can be estimated with several terrain indices developed for the purpose. The aim of this study was to quantify the spatial variability of the forest floor CH4 flux with a topography-based upscaling method connecting the flux with its driving factors. We conducted spatially extensive f... VO - IS - SP - OP - KW - 1172 Environmental sciences; 1171 Geosciences; EDDY COVARIANCE; CARBON-DIOXIDE; TEMPERATE FOREST; CH4 EMISSIONS; NITROUS-OXIDE; BOREAL FEN; SOIL; CHAMBER; ATMOSPHERE; EXCHANGE N1 - PP - ER -