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Effect of gap size on tree species diversity of natural regeneration - case study from Masaryk Training Forest Enterprise Křtiny

Author

Listed:
  • Maame Esi Hammond

    (Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic)

  • Radek Pokorný

    (Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic)

  • Lumir Dobrovolný

    (Training Forest Enterprise Masaryk Forest Křtiny, Czech Republic)

  • Nina Hiitola

    (Department of Silviculture, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic)

  • Michal Friedl

    (Department of Forest Botany, Dendrology and Geobiocoenology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic)

Abstract

Forest gaps remain the optimal forest management practice in modern forestry. Upon all the physical properties of forest gaps, the 'gap size' feature stands out as an essential property. The effect of gap size on tree species composition and diversity of natural regeneration in forest gaps of different sizes was investigated. Eight research forest gaps were selected from the Training Forest School Enterprise, also called Masaryk Forest in Křtiny, a temperate mixed forest in the Czech Republic. By given gap sizes, small (< 700 m2) and large gaps (≥ 700 m2) were defined. Forty-one (41) regeneration microsites (RSs) of 1 m2 circular area at 2 m intervals were demarcated within each forest gap. These RSs served as data collection points. From the total of eleven (11) species enumerated, large gaps obtained higher species composition (10) and diversity (Simpson = 0.5 1-D; Shannon = 1.0 H and Pielou's evenness = 0.5 J indices) records, yet, small gaps presented favourable conditions for prolific natural regeneration significantly. Light-adapted species demonstrated no significant difference (P > 0.05) between small and large gaps, however, intermediate and shade-tolerant species were significantly higher (P < 0.05) in small gaps. There were progressive declines in height growth of natural regeneration from 0-20 cm to 21-50 cm and 51+ cm in small and large gaps at R2 = 99% and 88%, respectively. The development of herbaceous vegetation in small and large gaps had positive and negative effects on the natural regeneration of Fagus sylvatica and Abies alba species, respectively.

Suggested Citation

  • Maame Esi Hammond & Radek Pokorný & Lumir Dobrovolný & Nina Hiitola & Michal Friedl, 2020. "Effect of gap size on tree species diversity of natural regeneration - case study from Masaryk Training Forest Enterprise Křtiny," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 66(10), pages 407-419.
    • Handle: RePEc:caa:jnljfs:v:66:y:2020:i:10:id:78-2020-jfs
    DOI: 10.17221/78/2020-JFS
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    References listed on IDEAS

    as
    1. Maame Esi Hammond & Radek Pokorný, 2020. "Preliminary assessment of effect of disturbance on natural regeneration in gaps of different sizes," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 66(5), pages 185-196.
    2. I. Březina & L. Dobrovolný, 2011. "Natural regeneration of sessile oak under different light conditions," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 57(8), pages 359-368.
    3. I. Schmid & K. Klumpp & M. Kazda, 2005. "Light distribution within forest edges in relation to forest regeneration," Journal of Forest Science, Czech Academy of Agricultural Sciences, vol. 51(1), pages 1-5.
    Full references (including those not matched with items on IDEAS)

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