Small spatial variability in methane emission measured from a wet patterned boreal bog

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dc.contributor.author Korrensalo, Aino
dc.contributor.author Mannisto, Elisa
dc.contributor.author Alekseychik, Pavel
dc.contributor.author Mammarella, Ivan
dc.contributor.author Rinne, Janne
dc.contributor.author Vesala, Timo
dc.contributor.author Tuittila, Eeva-Stiina
dc.date.accessioned 2018-04-12T07:45:02Z
dc.date.available 2018-04-12T07:45:02Z
dc.date.issued 2018-03-26
dc.identifier.citation Korrensalo , A , Mannisto , E , Alekseychik , P , Mammarella , I , Rinne , J , Vesala , T & Tuittila , E-S 2018 , ' Small spatial variability in methane emission measured from a wet patterned boreal bog ' , Biogeosciences , vol. 15 , no. 6 , pp. 1749-1761 . https://doi.org/10.5194/bg-15-1749-2018
dc.identifier.other PURE: 103622667
dc.identifier.other PURE UUID: 9263e9af-1bb6-4617-85ad-1ad8e8fd9b04
dc.identifier.other WOS: 000428392400002
dc.identifier.other Scopus: 85044427678
dc.identifier.other ORCID: /0000-0002-8516-3356/work/43736520
dc.identifier.other ORCID: /0000-0002-4081-3917/work/43736668
dc.identifier.uri http://hdl.handle.net/10138/234160
dc.description.abstract We measured methane fluxes of a patterned bog situated in Siikaneva in southern Finland from six different plant community types in three growing seasons (2012-2014) using the static chamber method with chamber exposure of 35 min. A mixed-effects model was applied to quantify the effect of the controlling factors on the methane flux. The plant community types differed from each other in their water level, species composition, total leaf area (LAI(TOT)) and leaf area of aerenchymatous plant species (LAI(AER)). Methane emissions ranged from -309 to 1254 mg m(-2) d(-1). Although methane fluxes increased with increasing peat temperature, LAI(TOT) and LAI(AER), they had no correlation with water table or with plant community type. The only exception was higher fluxes from hummocks and high lawns than from high hummocks and bare peat surfaces in 2013 and from bare peat surfaces than from high hummocks in 2014. Chamber fluxes upscaled to ecosystem level for the peak season were of the same magnitude as the fluxes measured with the eddy covariance (EC) technique. In 2012 and in August 2014 there was a good agreement between the two methods; in 2013 and in July 2014, the chamber fluxes were higher than the EC fluxes. Net fluxes to soil, indicating higher methane oxidation than production, were detected every year and in all community types. Our results underline the importance of both LAI(AER) and LAI(TOT) in controlling methane fluxes and indicate the need for automatized chambers to reliably capture localized events to support the more robust EC method. en
dc.format.extent 13
dc.language.iso eng
dc.relation.ispartof Biogeosciences
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject WATER-TABLE
dc.subject METHANOTROPHIC BACTERIA
dc.subject MINNESOTA PEATLANDS
dc.subject ATMOSPHERIC METHANE
dc.subject NORTHERN MINNESOTA
dc.subject FLUX MEASUREMENTS
dc.subject VASCULAR PLANTS
dc.subject CH4 PRODUCTION
dc.subject FEN ECOSYSTEM
dc.subject CO2 EXCHANGE
dc.subject 1171 Geosciences
dc.subject 1172 Environmental sciences
dc.title Small spatial variability in methane emission measured from a wet patterned boreal bog en
dc.type Article
dc.contributor.organization Institute for Atmospheric and Earth System Research (INAR)
dc.contributor.organization Department of Physics
dc.contributor.organization Department of Forest Sciences
dc.contributor.organization Micrometeorology and biogeochemical cycles
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.5194/bg-15-1749-2018
dc.relation.issn 1726-4170
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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