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| Titel: |
Natural regeneration of the Norway spruce natural forest in the National Nature Reserve Kosodrevina. |
| Auteur: |
Milan Saniga Miroslav Balanda |
| Verschenen in: |
Casopis Beskydy |
| Paginering: | Jaargang 1 (2008) nr. 2 pagina's 171-178 |
| Jaar: |
2008 |
| Inhoud: |
Primary objective of this work was the assessment of natural regeneration processes in the Norway spruce natural forest at its upper limit in the National Nature Reserve Kosodrevina. Dynamics of regeneration processes was quantified by numbers of individuals per hectare, specified by five height categories for each experimental plot. The evaluation of natural regeneration in the experimental plots involved analysis of growth medium impact as well (soil or coarse woody debris). The impact of seedbed was examined in 2006.Analysis of regeneration processes in the natural Norway spruce mountain forest confirmed that initial phase of breakdown stage generates optimal conditions for a continuous generation replacement. The number of individuals recorded in this stage ranged from 3.501 pcs . ha−1 (in 2006) to 1.800 pcs . ha−1 (in 1986). But on the other hand, research on regeneration dynamics in optimal stage showed that suitable conditions for germination, establishment and partial growth of seedlings were in advanced phase of this stage. From 2.167 pcs . ha−1 (in 1996) to 1.034 pcs . ha−1 (in 2006) were found in this plot. In the growth stage, from 257 pcs . ha−1 (in 1976) to 57 pcs . ha−1 (in 1996) were found. Low values of abundance in this stage suggest that recruitment of new trees is permanently discontinuous.At the upper forest boundary, coarse woody debris as a growth medium has the unsubstitable function for a continuous developmental stage replacement. Proportion of individuals that used CWD for seedbed was 59.45% in initial phase of breakdown stage, whereas in optimal stage it was 7.4%. |
| Uitgever: |
Mendel University, Brno (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 4 van 14 gevonden artikelen
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