Earth’s Cryosphere, 2017, Vol. XXI, No. 2, p. 46-51
SPATIAL VARIABILITY OF SOIL CO2 EFFLUX IN THE FOREST-TUNDRA ZONE OF WEST SIBERIA (NOVY URENGOI): ABIOTIC CONTROLS
A.A. Bobrik1, O.Yu. Goncharova1, G.V. Matyshak1, D.S. Drozdov2, O.E. Ponomareva2
1Lomonosov Moscow State University, Department of Soil Science,
1, Leninskie Gory, Moscow, 119991, Russia; ann-bobrik@yandex.ru
2Earth Cryosphere Institute, SB RAS, 86, Malygina str., Tyumen, 625400, Russia
Studies at site CALM R50 in Novy Urengoi, northern West Siberia, reveal high spatial variability in the patterns of soil СО2 efflux, active layer thickness, and landscape parameters (elevations, volumetric soil moisture, and soil surface temperature). The distribution of carbon dioxide emission from soil over the area correlates with active layer thickness, soil temperature and moisture contents, as well as with elevation. Active layer thickness is the major control of soil moisture and temperature distribution.
Permafrost, permafrost-affected soils, peat, soil moisture, CO2 efflux