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Hodnocení ekologických limitů a zdravotního stavu buku lesního (Fagus sylvatica) v oblasti vnějších západních Karpat
Mikulenčák, Josef
European beech is an important and irreplaceable economic tree species in the forests of the Czech Republic. This thesis was created in thearea of Outer Western Carpathians, and it focuses on evaluation of ecological limits and the health condition of beech on network-based research plots from 2th vegetation tier (280 m) after 8th vegetation tier on the Lysá Mountain (1323 m). In each research area, basic dendrometry characteristics were measured and evaluated biotic and abiotic damage was evaluated. The results indicate that optimal growth conditions for beech are in the 4th vegetation tier. In other vegetation tiers, beech is more limited by abiotic factors than by biotic factors. In the 2th and 3th vegetation tier, the growth of beech is limited by frequent occurrence of drought. In contrast in higher vegetation tiers (6th, 7th, and 8th), frost, glaze and shorter growing period associated with lower average temperatures have the highest impact on the growth of beech. High vitality, wide ecological valence, a limited amount of biotic factors which damage beech and the ability to change the growth symptoms in individual vegetation tiers made beech into one of the main edificators of vegetation tires.
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