Wintertime CO2 Emission from Soils of Northeastern Siberia

S.A. Zimov, I.P. Semiletov, S.P. Daviodov, Yu.V. Voropaev, S.F. Prosyannikov, C.S. Wong, Y.-H. Chan
1993 Arctic  
The emission of CO2 from northeastern Siberian soil was estimated for the period December 1989 to February 1990. Concentrations of air CO2 near the ground and 1 m above the snow cover were measured by an infrared gas analyzer. Fluxes of CO2 across the snow cover were calculated from the differences of these two values and the predetermined CO2 transfer coefficients at various flux rates through a layer of snow. Temperature and moisture content of the soil profiles were also observed
more » ... ly. The average transfer coefficient of CO2 for packed snow measured in the winter of 1989/90 was about 0.28 cm2*s-1.
doi:10.14430/arctic1344 fatcat:epxc5iyhlzfthbadtye76tq3tq