Sökning: "Ylva Hedstrand"

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  1. 1. Effects of ammonium oxalate treatment on interlayer materials in 2:1 layer silicates from a podzol

    L3-uppsats, SLU/Dept. of Forest Soils

    Författare :Ylva Hedstrand; [2003]
    Nyckelord :interlayer; ammonium oxalate; vermiculite; smectite; podzol; clay; surface charge;

    Sammanfattning : In an ongoing study it was found that ammonium oxalate treatment in the dark (NH4Ox-D) reduced the permanent charges considerably in the Bh horizon and to a lesser degree in the Bs1 and Bs2 horizon in a podzolised soil. The aim of this study was to evaluate if the loss of permanent charge can be explained by removal of partial hydroxy-Al interlayer material by the NH4Ox-D treatment, resulting in a collapse of the interlayer space. LÄS MER