Major uncertainties in estimates of organic C trapped in soils, and the mechanisms that stabilise it, may impede accurate climate predictions for the future. Recent studies suggest that buried soil C represents a large and poorly constrained reservoir. In volcanic active regions, soils are repeatedly buried underneath tephra deposits from explosive eruptions.
Paque, M., Morize, L., & Delmelle, P. (2018). Volcanic soil burial by tephra in the northern Ecuadorian Andes “sequestrates” a significant stock of organic carbon. SSSB 2018 Day of Young Soil Scientists 2017, Brussels, Belgium. https://hdl.handle.net/2078.5/57714