| Autor: |
Klug, Brigitte, Tintner, Johannes, Heinz, Ingrid, Matiasch, Lydia |
| Předmět: |
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| Zdroj: |
Austrian Journal of Forest Science / Centralblatt für das Gesamte Forstwesen; 2019, Vol. 136 Issue 3, p199-218, 20p |
| Abstrakt: |
The aim of this study was to document species composition and richness as well as light affinity of the herbaceous understorey in an oak-hornbeam coppice-with-standards forest with respect to phytosociology. Our research questions were (i) how does the herbaceous understorey react to interventions of different size, (ii) how do their light indicators values (Ellenberg et al. 2001) reflect silvicultural methods, and (iii) do local temperatures mirror the respective light environment? In an oak-hornbeam coppice-with-standards forest in North-eastern Lower Austria with the most recent coppice harvesting in 1958, the effects of two silvicultural methods on the herbaceous layer were investigated. The treatments were (i) a coppice with standards treatment for 20 years, and ii) small gap clearings for 7 years. Species richness andcomposition as well as indicator values were compared to the surrounding forest, since the small gap-clearings were also coppiced in 2009. Phytosociological relevés and the calculation of light indicator values indicated that small gap clearings appear to be more effective in re-establishing an understorey community close to the typical forest community than coppicing. One reason is that small gaps provide light conditions for the understorey vegetation similar to the forest. More light-affine species cannot easily penetrate into these gaps from outside the forest. Very dense Carpinion stands shifting towards other Fagetalia communities should be coppiced more often, but on a small scale to promote herbaceous Carpinion species in the understorey. Thus forest management can help preserve these site-specific typical vegetation communities. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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