ИСТИНА

The climatic record (North West Siberia) indicates a progressive warming of annual air temperatures of ~2°C over the last 18 years (an average of -6°C to -4°C), due to increase in both summer and winter temperatures [Goncharova, 2015]. It leads to a change in soils temperature regime, changing plant associations, gradual degradation of permafrost and changing landscape as a whole. We investigated the variability and interactions between active layer thickness and some soil parameters of CALM site R1 (Nadym Grid) in discontinuous permafrost zone and CALM site R50 (Urengoy grid) in continuous permafrost zone of Russian Arctic.