Happy to announce the publication of:
Coward, E.K., Thompson, A.T., and A.F. Plante (2017) Iron-mediated mineralogical control of organic matter accumulation in tropical soils Geoderma doi:10.1016/j.geoderma.2017.07.026. This project was part of Elizabeth Coward’s PhD dissertation at the University of Pennsylvania. She used inorganic selective dissolution experiments for direct quantification of Fe-bound C. Results suggest that low-molecular weight complexations dominate Fe-C associations in Luquillo soils, and mass balance analyses suggest Fe-associated pool of C is limited (< 50% total C). The predominance of Fe-C associations as the principal stabilization may thus be overestimated in these soils.