Estimation of the net emission of carbon dioxide from soils on the territory of Russia

摘要

The net emission of carbon dioxide from soils on the territory of Russia is estimated at 2.6 to 3.0 Gt C/year. The contribution of root respiration to the net emission constitutes 1.29-1.66 Gt C/year, depending on the calculation method. In total, the CO2 emission from all sources (soil, fossil fuel combustion, industry, forest fires, etc.) on the territory of Russia cannot exceed 3.2-3.6 Gt C/year. The carbon sink in net primary production is estimated at 4.5 Gt C/year. Therefore, the territory of Russia can be considered the global carbon sink with the carbon sequestration capacity of about 1 Gt C/year.