Fig. 1: Conceptual figure illustrating the controls on MAOM chemical heterogeneity and three known drivers of MAOM destabilization.

The distribution of MAOM into persistent or fast-cycling forms will depend largely on the properties of the minerals and associated organic matter. Key ecological drivers of MAOM destabilization include plant-microbial forces, climate change, land use change, and agricultural management. Original artwork by Elena Harley (www.elabarts.com).