Les formes solides du fer en milieu hydromorphe acide : une approche compartimentale par dissolution sélective

A partitional approach to iron forms of some pedological features in acid hydromorphic environments is attempted. It is based on dissolution by selective reagents and mineralogical controls applied on both microsampled material and uncovered thin sections. Thus the studied hydromorphic areas show that with the oxidizing environment are associated labile ferruginous species and with the reducing one are associated well crystallized iron oxides and significant amounts of iron available without prior reduction