Mukhrino Field Station is owned and run by the UNESCO Chair on Environmental Dynamics and Climate Change at the Yugra State University, Khanty-Mansiysk, Russia. The Mukhrino Field Station is located at the east bank of the Irtysh River near the confluence with the Ob River in the central taiga area of Western Siberia (60°54’ N, 68°42’ E), 30 km south-west of the town of Khanty-Mansiysk (60 000 inhabitants). Due to the severe continental climate, the environmental conditions in the region are comparable with the sub-arctic zone of Northern Europe. The research site is representative for the Western Siberian pristine carbon accumulating peatland ecosystem (“plain mires”). The mires cover c. 60 % of the land surface and can be regarded as important sources/sinks of greenhouse gases and aerosols. The main mire type of the site is raised bogs of the type Pine-dwarf shrubs-bogs (Ryam) characterized by pine trees, Ledum palustre and dwarf shrubs, with areas of Sphagnum fuscum. Interspersed are mires of the type Poor fens (partly drained in the summer) dominated by Carex lasiocarpa and other graminoids, and Sphagnum balticum. Also ridge-hollow complexes, consisting of bog ridges and poor fen hollows are present.