Les minéraux-test, une approche expérimentale in situ de l'altération biologique et du fonctionnement des écosystèmes forestiers. Effets des types de sols et des essences feuillues et résineuses

Abstract

In the acid brown soils the test mineral is highly desaturated while exchangeable acidity increases. In this soil, Al is rapidly hydroxylated. The change of forest species (spruce versus mixed broadleaved) produces an important mobilization of Al and forms a more stable intergrade. In the podzol, the quantity of Al is greater than in the acid brown soil but the formation of a very stable Al intergrade mineral was not observed. The change of forest species (spruce versus beech) tends to produce the same relative effect as observed in the acid brown soil. -from English summary