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Effect of forest decline on old Norway spruce in the Central Harz region


, : Effect of forest decline on old Norway spruce in the Central Harz region. Beitrage fur die Forstwirtschaft 25(2): 59-61

Three stems of Picea abies 100 years old and exhibiting all the symptoms of decline ('tinsel syndrome' (long-hanging branches), 'window effect' and needle yellowing) were examined as regards needle colour, needle chemistry, and height, diameter and volume increment, using a spline function adapted for this region of eastern Germany. Forest decline has not had an adverse effect on increment.

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Related references

Stock, R., 1988: Aspects of the regional spread of 'modern forest decline' in Norway spruce in the Harz Mountains. An aerial survey of forest decline in Norway spruce (Picea abies) was made in W. Germany in 1985 using colour infrared photography. Three-dimensional models and maps are presented plotting the extent and intensity of needle yellowing and needle lo...

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