Unraveling the size distributions of surface properties for purple soil and yellow soil

Abstract Soils contain diverse colloidal particles whose properties are pertinent to ecological and human health, whereas few investigations systematically analyze the surface properties of these particles. The objective of this study was to elucidate the surface properties of particles within targeted size ranges ( i.e. > 10, 1–10, 0.5–1, 0.2–0.5 and