“…Due to their environmental boundary conditions and their extensive weathering history, most tropical soils are dominated by end member minerals such as 1:1 clays (e.g., kaolinite) as well as highly crystalline Fe oxyhydroxides and Fe oxides, which have a lower potential for the sorption of organic matter (Barré et al, 2014; Doetterl et al, 2018; Ito & Wagai, 2017; Six, Conant, et al, 2002). Thus, the reduced mineral reactivity of tropical soils (Doetterl et al, 2018; Mendez et al, 2022) compared to temperate soils leads to a lower potential to store C despite higher inputs in natural (tropical forest) ecosystems.…”