Regeneration of Silver fir (Abies alba Mill.) on clear-cut areas
2014
Vanek, P., Mendel University, Brno (Czech Republic). Dept. of Silviculture | Mauer, O., Mendel University, Brno (Czech Republic). Dept. of Silviculture
The paper evaluates the growth of Silver fir plantations on clear-cut areas in the regime of different sheltering and mixing with the European larch. The experiment was carried out on a permanent research plot where Silver fir was planted on an unsheltered open space, on an open space sheltered by the gradually overgrowing European larch, alternating in rows and mixed within the row with the gradually overgrowing European larch. It was also planted in a SW corner of the clear-cut area sheltered on two sides by a mature spruce stand. Results of measurements demonstrated that the conditions of the unsheltered clear-cut area or only partly sheltered clear-cut area have no principal adverse influence on the growth of Silver fir. However, a considerably higher mortality, more severe frost injury and impaired vitality of plants were observed. The most suitable option for the regeneration of Silver fir on a clear-cut area, i.e. the option in which Silver fir individuals would exhibit good growth, low mortality, low frost injury and high vitality (needle length and colour) appeared to be the plantation of Silver fir in mixed rows with the European larch (N-S direction of rows), where the larch starts to overgrow the fir very rapidly, thus providing the necessary shelter. Pure fir groups are then recommended to be planted in marginal stand parts that are sheltered for a greater part of the day by the surrounding stand.
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