Responses of Soils to Climate Change

摘要: Publisher Summary This chapter discusses the responses of soil to climate change. Increased trace gas concentrations in atmosphere are forcing change towards warmer and drier conditions at mid-latitudes longer summer seasons higher temperatures high latitudes. considers effects on carbon dynamics soils through interactions vegetation, topography, physicochemical parent material. Processes organic matter formation, dating manipulative experiments considered which show that pools formed cold susceptible increased mineralization rates if increase. Under current projections climate-warming, latitudes could release about 1 Gt C year over next 50-60 years; a comparable flux deforestation tropics 20% industrial emissions. Warmer, more developed contain larger stabilized with minerals, but rate accumulation associated changing plant/soil relationships is unlikely constitute significant sink any immediate time-scale. The net shifts vegetation as consequence enrichment by CO 2 N deposition affecting quantity, quality, location plant production major uncertainties global balances.