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Plant community variability within potential natural vegetation units: a case study from the Bohemian Karst

Author

Listed:
  • P. Šamonil

    (Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Department of Forest Ecology, Brno, Czech Republic)

  • K. Polesná

    (Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Department of Forest Ecology, Brno, Czech Republic)

  • P. Unar

    (Silva Tarouca Research Institute for Landscape and Ornamental Gardening, Department of Forest Ecology, Brno, Czech Republic)

Abstract

: Based on a map of potential natural vegetation (PNV), actual vegetation was studied in the Mramor locality (106.4 ha). A total of 188 relevés were examined using stratified random sampling. A comparison was made between trends in vegetation variability throughout the entire locality and variability within the defined PNV units. The stratification of the locality according to PNV units was only partly representative of the main trends in vegetation variability, especially at ecologically distinctive sites. On the other hand, in areas with a relatively limited ecological gradient, the sites were "oversampled". The variability of plant communities within PNV units was high. The results of this case study suggest that the need for delineation of PNV units which are homogeneous in terms of production, site and phytocoenosis is overestimated. This delineation neither corresponds to the characteristics of actual ecosystems nor is necessary for the application of a PNV system. A more suitable unit for the development of such a system would be, for example, forest type series.

Suggested Citation

  • P. Šamonil & K. Polesná & P. Unar, 2009. "Plant community variability within potential natural vegetation units: a case study from the Bohemian Karst," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 55(11), pages 485-501.
    • Handle: RePEc:caa:jnljfs:v:55:y:2009:i:11:id:111-2008-jfs
    DOI: 10.17221/111/2008-JFS
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    References listed on IDEAS

    as
    1. P. Šamonil & J. Viewegh, 2005. "Forest site classification of forest ecosystems in Bohemian Karst (Czech Republic)," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 51(11), pages 508-518.
    2. J. Viewegh & A. Kusbach & M. Mikeska, 2003. "Czech forest ecosystem classification," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 49(2), pages 74-82.
    3. P. Šamonil, 2007. "Uniqueness of limestone soil-forming substrate in the forest ecosystem classification," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 53(4), pages 149-161.
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    Cited by:

    1. Petr Dujka & Antonín Kusbach, 2023. "Assessment of the Ellenberg quotient as a practical tool for vertical vegetation zonation," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 69(7), pages 305-316.

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