| Name of article: | Tloušťkový přírůst smrku (Picea abies (L.) Karst.) a buku (Fagus sylvatica L.) v stejnorodých a smíšených porostech |
|---|---|
| Number: | 4 |
| Year: | 2018 |
| Author: | Monika Vejpustková, Tomáš Čihák, Vít Šrámek |
Species mixing has a substantial stabilizing effect concerning productivity and stand structure in case of disturbances. However, whether the mixed stands are more productive comparing to pure stands still remains an open question. The main objective of the study was to compare the radial increments of spruce and beech in the pure stands and in its mixture and to determine the factors with significant effect on growth. Seven triplets (pure beech, pure spruce and mixture) were established within the area of the Czech Republic covering different growth conditions. Radial increments were studied using method of tree-ring analysis. ANCOVA results demonstrated that increments significantly differed depending on tree species and locality. Species mixing was also significant factor when evaluating both tree species together, but it did not have any effect if the interaction between mixing and individual species was considered. However, in relation to the total yield, the findings must be interpreted with caution as the lateral growth is only one dimension of volume growth.
