Der Beginn der Wiederbewaldung von belassenen und geräumten Sturmwurfflächen im Mittel-Ural : Workshop Sturmwurfforschung

1999

S. 111-119

3 Abb., 23 Lit. Ang.

Unselbständiges Werk

200058918

In 1994, as part of a joint Russian-Swiss investigation, long-term regeneration experiments were started in the Central Ural on two windthrow experimental plots of 20 ha and 12 ha, respectively Each of it was divided into 3 sub-plots, one being left untouched, one roughly logged, and the last roughly logged and then replanted. One important goal of this experiment is to compare reforestation dynamics in windthrow areas which have been treated differently with the neighbouring, but undisturbed forest. With more than 3.700 trees taller than 20 cm and up to 11 species, the forests shows great diversity. Neither windthrow, nor logging and clearing diminished the diversity, but all reduced the abundance of most of the species. Forests, left to regenerate naturally for some decades after clear-cutting, show a much higher number of species and individual trees than intensively managed conifer forests in the Swiss Alps. Therefore it is recommended that natural development processes should more often be integrated into conventional forest management methods.