Dynamics of Fagus sylvatica L. Necrotization under Different Pollutant Load Conditions
Ivan Mihál 1  
,   Róbert Marušák 2  
,   Milan Barna 1  
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Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
Faculty of Forestry and Wood Sciences, Czech University of Life Sciences, Praha, Czech Republic
Ivan Mihál   

Institute of Forest Ecology, Slovak Academy of Science, Institute of Forest Ecology, Slovak Academy of Sciences, Sturova 2, 960 53 Zvolen, Slovak Republic
Submission date: 2018-02-27
Final revision date: 2018-06-06
Acceptance date: 2018-06-12
Online publication date: 2019-03-05
Publication date: 2019-04-09
Pol. J. Environ. Stud. 2019;28(4):2755–2763
The potential impact of acidic fluorine type of pollutants on the dynamics of European beech (Fagus sylvatica L.) stem bark and crown disease was investigated between 2004 (2007) and 2014 in three mature beech stands in Central Europe. The localities were 1.5 km, 7 km and 18 km from the pollution source: an aluminium plant. A decrease of necrotic disease with the increasing distance from the pollution source was revealed. Necrotization was highest nearest to the pollution source. The significance of the impact of necrotic disease was confirmed for the 2nd and 3rd tree classes. Necrotization was quantified using the indices of stem necrotization (ISN), crown necrotization (ICN) and necrotization of whole tree (IWTN). Over the period 2004 (2007)–2014, the values of ISN, ICN and IWTN decreased at all three localities. Significant positive relationships were found between the necrotization of the crown and stem of the same tree at all localities (Spearman’s correlation analyses R = 0.764; 0.597 and 0.755, P = 0.001; 0.01 and 0.001). Accordingly, the trees suffered from the necrotic damage at all parts in relation to their current health state.