Abstract: Forest soil organic carbon is an important component of global carbon cycle, and the changes of its accumulation and decomposition directly affect terrestrial ecosystem carbon storage and global carbon balance. Climate change would affect the photosynthesis of forest vegetation and the decomposition and transformation of forest soil organic carbon, and further, affect the storage and dynamics of organic carbon in forest soils. Temperature, precipitation, atmospheric CO₂ concentration, and other climatic factors all have important influences on the forest soil organic carbon storage. Understanding the effects of climate change on this storage is helpful to the scientific management of forest carbon sink, and to the feasible options for climate change mitigation. This paper summarized the research progress  about the distribution of organic carbon storage in forest soils, and the effects of elevated temperature, precipitation change, and elevated atmospheric CO₂ concentration on this storage, with the further research subjects discussed.

Key words: forest, climate change, soil organic carbon storage, soil organic matter model, carbon sink, heavy metal, Populus euphratica, rhizosphere bacteria, Salix maizhokung garensis, plant growthpromoting bacteria (PGPB).