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Effect of structure and dynamics of forests on the occurrence of Erythronium dens-canis

Author

Listed:
  • Stanislav Vacek

    (Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Prague, Czech Republic)

  • Rostislav Linda

    (Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Prague, Czech Republic)

  • Ivo Králíček

    (University of Hradec Králové, Faculty of Science, Hradec Králové, Czech Republic)

  • Karel Vančura

    (Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Prague, Czech Republic)

  • Anna Prokůpková

    (Czech University of Life Sciences Prague, Faculty of Forestry and Wood Sciences, Prague, Czech Republic)

  • Romana Prausová

    (University of Hradec Králové, Faculty of Science, Hradec Králové, Czech Republic)

Abstract

The paper presents the results of a study on the impact of forest stand structure and development in 1998 to 2018 on the occurrence of dog's tooth violets (Erythronium dens-canis L.) in the Medník National Nature Monument, Czech Republic. The research was carried out in mixed European hornbeam and sessile oak stands, herb-rich European beech stands and the Sázava-river Norway spruce ecotype stands. The site and stand characteristics of the following three forest stand types were compared: 1) oak-hornbeam forests, 2) herb-rich beech forests and 3) secondary spruce forests. The results showed that the ratio of sterile and fertile plants was 2.9 to 1. The occurrence of E. dens-canis was higher in older stands with differentiated structure. On the contrary, stands characterized by a higher number of trees and basal area negatively affected the population size of E. dens‑canis. Significantly, the density of E. dens-canis decreased with increasing stand density index (SDI) and increased with increasing diameter differentiation index in relation to tree neighbours (TMd). During the period of 20 years, the E. dens-canis population increased by 40.4% on permanent research plots, while the highest changes were observed on spruce plots (+92.1%) and the lowest increase was in oak-hornbeam forests (+18.0%). The highest numbers of E. dens-canis plants were found in herb-rich beech forests (1 774 plants.ha-1), lower numbers occurred in oak-hornbeam forests (784 plants.ha-1) and minimal in secondary spruce forests (51 plants.ha-1).

Suggested Citation

  • Stanislav Vacek & Rostislav Linda & Ivo Králíček & Karel Vančura & Anna Prokůpková & Romana Prausová, 2020. "Effect of structure and dynamics of forests on the occurrence of Erythronium dens-canis," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 66(9), pages 349-360.
    • Handle: RePEc:caa:jnljfs:v:66:y:2020:i:9:id:96-2020-jfs
    DOI: 10.17221/96/2020-JFS
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    References listed on IDEAS

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    1. D. Bulušek & Z. Vacek & S. Vacek & J. Král & L. Bílek & I. Králíček, 2016. "Spatial pattern of relict beech (Fagus sylvatica L.) forests in the Sudetes of the Czech Republic and Poland," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 62(7), pages 293-305.
    2. L. Bílek & S. Vacek & Z. Vacek & J. Remeš & J. Král & D. Bulušek & J. Gallo, 2016. "How close to nature is close-to-nature pine silviculture?," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 62(1), pages 24-34.
    3. D. Zahradník & S. Vacek & L. Bílek & I. Nosková & Z. Vacek, 2010. "Horizontal structure of forest stands on permanent research plots in the Krkonoše Mts. and its development," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 56(11), pages 531-540.
    4. M. Fabrika & J. Ďurský, 2005. "Algorithms and software solution of thinning models for SIBYLA growth simulator," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 51(10), pages 431-445.
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