Negative influence of incidental felling on natural regeneration in chosen forest user unit
2006
Danček, I., Technical University in Zvolen (Slovak Republic). Faculty of Forestry
The aim of the work is to evaluate the influence of incidental felling on natural regeneration. The total final cut in a Forest User Unit in the period from 2000 to 2005 was analysed. The percentage of incidental felling derived from total realised cut according to tree species was determined. The total percentage of incidental felling was 87.35%. Using of shelterwood silvicultural system in 2001 and 2002 caused the increasing of natural regeneration in subsequent years despite of high ratio of artificial regeneration of gale-disaster area. The next aim of the work is to find out the influence of felling on development of natural regeneration. For this purpose the Permanent Research Plots (PRP) were established. Correct realisation of shelterwood cut caused the increasing of a number of young trees of natural regeneration by 30 to 40%. It was pointed at the advantage of condensed planting space of artificial regeneration at the areas regenerated with difficulties originated by the decay of mature stand at 6th and 7th attitudinal vegetation zone. Using this way of seedling, less losses of reforestation were obtained. Some arrangements how to reduce influence of incidental felling on regeneration were suggested.
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