Monitoring the multi-year carbon balance of a subarctic palsa mire with micrometeorological techniques

TY - JOUR

T1 - Monitoring the multi-year carbon balance of a subarctic palsa mire with micrometeorological techniques

AU - Christensen, Torben

AU - Jackowicz-Korczynski, Marcin

AU - Aurela, Mika

AU - Crill, Patrick

AU - Heliasz, Michal

AU - Mastepanov, Mikhail

AU - Friborg, Thomas

N1 - CENPERM[2012]

PY - 2012/7

Y1 - 2012/7

N2 - 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 CO2/CH4 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 CH4 emissions (18-22 g CH4-C m-2 y-1). This consistent carbon sink combined with substantial CH4 emissions is most likely what is to be expected as the permafrost under palsa mires degrades in response to climate warming.

AB - 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 CO2/CH4 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 CH4 emissions (18-22 g CH4-C m-2 y-1). This consistent carbon sink combined with substantial CH4 emissions is most likely what is to be expected as the permafrost under palsa mires degrades in response to climate warming.

U2 - 10.1007/s13280-012-0302-5

DO - 10.1007/s13280-012-0302-5

M3 - Journal article

C2 - 22864695

SN - 0044-7447

VL - 41

SP - 207

EP - 217

JO - Ambio

JF - Ambio

IS - 3 Suppl.

ER -