Abstract
Abstract Damages of new type in Fagus sylvatica L. trees. SEM-observations of foliar surfaces. - Within researches on damages of new type (Neuartigen Waldschaden) that mark pathological aspects of «forest decline», we have made a set of observations by SEM and we have examinated structural changes of epidermis of Fagus sylvatica L. leaves from healthy and damaged trees in Vallombrosa forest (near Florence). Observations have been correlated with some environmental parameters. A part from these researches, we have exposed seedlings of Beech to simulated acid fogs (pH 2.5 and 3.0, with and without detergents). In this paper microdamages observed at SEM are described and compared with those naturally occurred.
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