ABSTRACT: Variabilite des processus podzoliques en fonction de l'etat hydrique des profils et de leur position sure les versants: le cas d'un petit bassin-versant forestier du centre du Nouveau-Brunswick [Variability of podzolic processes as a function of soil water saturation and hillslope position in a small forested catchment of central New Brunswick].

CGRG Bibliography of Canadian Geomorphology
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A soil solution in a forested subcatchment of central New Brunswick helped to verify the theoretical basis of dynamic podzolization models and variability of podzolic processes as a function of soil water saturation and hillslope position. Soil solution chemistry indicated that chelation is active in the top mineral horizons (A). Organo-metallic complexes precipitate mainly in the B horizons. However, these podzolic processes are not active all year. Well-drained podzols are developing mainly during the spring and fall when water percolates abundantly through the soil. During summer, translocation of iron and aluminum combined with dissolved organic matter is rare; it is only active when a long and intense rain event will permit water to percolate as far as the B horizons. In imperfectly drained sites, translocation of podzolic materials is active throughout the frost-free season. Unlike these soil conditions, water coming from the top soil layers easily reaches the B horizons. In cases where the B horizons are affected by hydromorphic conditions, podzolic processes are modified and precipitated iron in the B horizon is reduced because of the presence of groundwater.

Bibliography of Canadian Geomorphology