The aim of this diploma thesis was to compare the development of mixed forest stands with different silvicultural management. For comparison, the SIBYLA forest biodynamic growth simulator was used. Four variants of silvicultural management were established: none (sanitacion) thinning, thinning, 100 target trees method, and 50 target trees method. All of them were applied to two research plots. Based on a comparison of the results of all variants, the most appropriate option for the given plot was selected. For the stand 19F5 growth on the first research plot, thinning was selected as the best variant. For the stand 322D4 on the second research plot, 100 target trees was selected as the most appropriate method.