Growth and health state of silver fir (Abies alba Mill.) in the ridge area of the Jizerské hory Mts.
2008
Balcar, V.,Vyzkumny Ustav Lesniho Hospodarstvi a Myslivosti, Opocno (Czech Republic) | Kacalek, D.,Vyzkumny Ustav Lesniho Hospodarstvi a Myslivosti, Opocno (Czech Republic)
Silver fir trees were planted under mountain conditions in order to reveal their response to the addition of finely ground rocks (limestone and amphibolite) mixed with soil into the planting holes. The results document that the increments of the plantations fertilised with amphibolite were higher by 25% on average than those of the control plantations while the increments of the plantations treated with dolomitic limestone were lower by 13%. All types of fir plantations in 1994-2007 are considered as being successful. As the damage by climatic stresses has gradually diminished, the number of dead trees has been decreasing and the height increments have been increasing in the last years, therefore a positive development is to be expected also in future.
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