Abstract:Abstract. Aggregation affects a wide range of physical and biogeochemical soil
properties with positive effects on soil carbon storage. For weathered
tropical soils, aluminous clays (kaolinite and gibbsite) and pedogenic Fe
(oxyhydr)oxides (goethite and hematite; termed “Fe oxides”) have been
suggested as important building units for aggregates. However, as
aluminosilicates, aluminum hydroxides, and Fe oxides are part of the
clay-sized fraction it is hard to separate how certain mineral phases
modulate aggrega… Show more
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