Radionik Verlag - IRT - Treatment of the woods

6.7. Treatment of the woods at Staverden, Welna and Keppel (NL)

In October 1989 treatment of the Staverden, Welna and Keppel woods in Holland was started in cooperation with Ir. M. den Boer, Director of the Stichting 'Geldersch Landschap' and former Head of the Forest Vitality Research of the Netherlands.

The woods in question are all in central Holland at the edge of the region Veluwe. Medium to large amounts of nitrogen in the air (plus water) are mainly responsible for the dying trees.

IRT was integrated into existing projects and set up additional experiments with Ir. den Boer. In each trail treated areas were compared with untreated areas.

The effects of resonance therapy on the validity of the trees was examined in 1989, 1990, 1991 and 1992 in Staverden and Welna.

In Keppel, the effects of resonance therapy on the natural emergence of oak seedlings were examined in 1990.

The analyses in Staverden and Welna were performed by Ir. den Boer and the Dutch company Heidemij.

The studies in Keppel were carried out by Ir. den Boer. The statistical analysis of the data was compiled by Dr.rer.nat. Claus E. Rink from Georisk GmbH in Kerpen, Germany.

6.7.1. Natural emergence of oak seedlings at Keppel

In July 90 the natural emergence of oak seedlings was measured (three pots treated, three pots untreated) by the parameters density, height and root collar diameter. In six other plots (three treated, three untreated) the height of oak seedlings transplanted in April '90 was measured.

The aim of this study was to test the vitality of the oak seedlings and to see whether with the transplanted seedlings, the shock of planting might be reduced by the treatment. As early as April there was evidence that the seedlings in the treated area had good fine root growth, but not in the untreated area.

The statistical analysis was made acc. to SPEARMAN.

Results

The results are summarized in Fig 4.

Report Georisk GmbH, Dr.rer.nat. Claus Rink, Jan. 1992

The sets of data headed "Oak seedlings per sqm", "Height of transplanted oak seedlings" and "Root collar diameter" reveal distince trends in favour of the treatment.

There were highly significant results in the comparison of "Height of the natural emerged oak seedlings". At a significance level of p<0.01 and a t-test with a value of >3.65 the correlation coefficient of 0.77 can be classified as good.

This shows a positive significant effect of the treatment on the natural emergence of oak seedlings.

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