Reconstructing Soil Recovery from Acid Rain in Beech (<i>Fagus sylvatica</i>) Stands of the Vienna Woods as Indicated by Removal of Stemflow and Dendrochemistry.

Four patterns may be distinguished: an increase in Mn and Fe since the late 1970s/early 1980s, a decreasing trend of Mg after the late 1980s, no clear trend for Ca and Al, and a decrease in potassium (K).

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When looking at the different soil depths in the between trees area, there was a clear trend of increasing pH values (H 2 O; KCl) with increasing soil depth in 2012, whereas mean Ca contents were lower in B 30–40 compared to the top soil (B 0–5; Table 1 , Fig. 5 ) which was not consistent with the conceptual model of recovery that assumes replenishment of bases from weathering as cation leaching fluxes are reduced by declining acidic deposition.

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