Water, Air, and Soil Pollution

, Volume 54, Issue 3, pp 337–350 | Cite as

Effects of forest liming on the nutrient status of podzolic soils in Finland

  • John Derome
Voluntary Paper


The results of 40 long-term liming experiments in Scots pine and Norway spruce stands on mineral soil sites of varying fertility are reviewed in this paper. Limestone was broadcast at a dose of 2 t ha−1 at the end of the 1950s and sampling was carried out at the end of the 1970s. Liming resulted in considerable accumulation (10 to 50% increase) of organic matter in the humus layer, but no changes in the mineral soil. The C/N ratio of the humus increased on the most productive sites. Liming brought about a long-term decrease in acidity of the humus layer on all site types, as well as a decrease in the mineral soil (0 to 10 cm) of the least productive ones. There was also a corresponding increase in base saturation. There was considerable accumulation of B and Mn in the humus layer. Sulphur was found to have been immobilized to a considerable extent in the humus layer, presumably as Al sulfate. Liming at fairly low doses (e.g. 2 t ha−1) thus seems to be sufficient to counteract any future increases in soil acidification without bringing about any adverse effects (apart from perhaps B levels) on the nutrient status of the soil.


Acidity Lime Humus Mineral Soil Soil Acidification 
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Copyright information

© Kluwer Academic Publishers 1990

Authors and Affiliations

  • John Derome
    • 1
  1. 1.Department of Soil ScienceThe Finnish Forest Research InstituteVantaaFinland

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