What happens to the forest floor after Siberian wildfires?

The main tree species in the Siberian taiga are larch, Scots pine, fir, spruce, Siberian pine and birch. Lightning is more a frequent cause of wildfires in northern Siberia with anthropogenic activity causing wildfires further south, however central and eastern Siberia have been more affected overall by wildfires. They decrease soil quality (organic matter, structure,…

Highway to bottom sediment – heavy metals in the Russian Far East waters

Heavy metal pollution in Peter the Great Bay and Lake Khanka affects both biological organisms and accumulating in bottom sediments (BS) of both freshwater and seawater. Russian chemists ecided to find out more about the impact on the surrounding ecology by analysing each heavy metal phase, how it appears, what it does and where it…

Less fizz, more plants – acids and eutrophication in Arctic lakes

Russian researchers identified acidification of lakes during 1990s in Murmansk, Karelia, Archangelsk and Vologda regions and found up to 5% of lakes have acidification due to human causes in humid areas of European Russia and West Siberia. Nornickel was identified as the main contributor of sulphur dioxide SO2 in Kola and Norilsk areas. However since…

Salt on the move in the permafrost

Researchers at Skoltech wanted to understand more about the effect of pressure and temperature on salt distribution in permafrost that contains hydrates and permafrost that doesn’t. Existing research does not model salt diffusion and transportation in permafrost thawing. They simulated experiments reproducing the degrading permafrost in laboratory conditions by changing the temperature and pressure whilst…