title: Monitoring the multi-year carbon balance of a subarctic palsa mire with micrometeorological techniques.
abstract: This article reports a dataset on 8 years of monitoring carbon fluxes in a subarctic palsa mire based on micrometeorological eddy covariance measurements. The mire is a complex with wet minerotrophic areas and elevated dry palsa as well as intermediate sub-ecosystems. The measurements document primarily the emission originating from the wet parts of the mire dominated by a rather homogenous cover of Eriophorum angustifolium. The CO(2)/CH(4) flux measurements performed during the years 2001-2008 showed that the areas represented in the measurements were a relatively stable sink of carbon with an average annual rate of uptake amounting to on average -46 g C m(-2) y(-1) including an equally stable loss through CH(4) emissions (18-22 g CH(4)-C m(-2) y(-1)). This consistent carbon sink combined with substantial CH(4) emissions is most likely what is to be expected as the permafrost under palsa mires degrades in response to climate warming.
authors.affiliation: Department of Physical Geography and Ecosystem Science, Lund University, Lund, Sweden. torben.christensen@nateko.lu.se
authors.forename: Torben R
authors.initials: TR
authors.lastname: Christensen
authors.forename: Marcin
authors.initials: M
authors.lastname: Jackowicz-Korczyński
authors.forename: Mika
authors.initials: M
authors.lastname: Aurela
authors.forename: Patrick
authors.initials: P
authors.lastname: Crill
authors.forename: Michal
authors.initials: M
authors.lastname: Heliasz
authors.forename: Mikhail
authors.initials: M
authors.lastname: Mastepanov
authors.forename: Thomas
authors.initials: T
authors.lastname: Friborg
mesh_terms: D001110:Arctic Regions; D057486:Carbon Cycle; D017753:Ecosystem; D004784:Environmental Monitoring / Q000379:methods*; D012621:Seasons; D013548:Sweden; D013696:Temperature; D013997:Time Factors; D014887:Weather