Untersuchungen über den Zusammenhang zwischen Schädigungsgrad und Meereshöhe im Rahmen des Schwerpunktprogramms zur Erforschung der Wechselwirkungen von Klima und Waldschäden

Translated title of the contribution: Investigations on the correlation between forest damage level and altitude above sea level

U. Ammer, M. Burgis, B. Koch, K. Martin

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Investigations were conducted within the framework of the research program focusing on interrelationships between climate and forest damages. - Tree species distribution at Wank (74 % Norway spruce, 15 % pine, 8 % fir, and 3 % broadleaved species) shows that spruce stands predominate. This is no disadvantage when the reference character of spruce in view of the forest decline investigations is considered. - The level of forest decline is high, with 55 % of the trees moderately (damage class 2) and 14 % severely affected (damage class 3). Almost one-fifth of all trees is severely damaged; more than two-thirds are showing distinctly weakened vitality. - The slightly higher damage percentages (5 percentage points) for locations exposed to the west confirm an already earlier observed trend. - Higher damages between 900 and 1200 m, and at approximately 1600 m above sea level, respectively, already observed in 1983, were not only just confirmed in 1986 for the Wank observation area; differences, on the contrary, are so distinct that they are statistically significant. Increased vitality losses found at altitudes between 1000 and 1200 m are highly significant (highest level); but also the second peak at an elevation between 1400 and 1600 m above sea level is statistically significant. - These findings and the fact that stable air strata (inversion layers) are frequently found at these altitudes suggest that the altitude-dependent vitality differences might be connected with increased ozone-caused stress.

Translated title of the contributionInvestigations on the correlation between forest damage level and altitude above sea level
Original languageGerman
Pages (from-to)145-151
Number of pages7
JournalForstwissenschaftliches Centralblatt
Issue number1
StatePublished - Dec 1988
Externally publishedYes


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