Pernestal K, Jonsson B, Hallgren JE
Pixe as a Tool for Determination of Acidified Forests
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms: 1993 75:326-329
The trace element content along tree cores of Norway spruce (Picea abies), collected at the experimental area E67 Faxboda, has been analysed by means of PIXE. Trace element content profiles along tree cores from trees grown on plots exposed to dolomite liming, sulphuric acid acidification and on reference plots have been determined. Changes, correlated to the acidification, have been observed. Calcium and the manganese/calcium ratios within a sample possess strong correlations to the artificial acidification at the experimental area. Local factors, like a high calcium content, are likely to influence the result.
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