Response of Carbon Mineralization to Nitrogen Application in Cryogenic Soils

Abstract

Cryogenic soils are formed on permafrost and cover 60–65% of the territory of Russia [1]. A specific feature of cryogenic forest ecosystems in Eurasia is that they are dominated by larch, and these ecosystems are very sensitive to disturbances. Increasing Nitrogen input is a global trend [2] that will inevitably affect northern forests of Siberia [3, 4]. Moreover, nitrogen in boreal forests of Sweden is applied to stimulate the growth of trees, which leads to additional carbon accumulation in the biomass. However, the problem concerning the effect of additional nitrogen input (with precipitation or fertilizers) on organic matter mineralization in soils of the cryogenic series has not been studied sufficiently