Comparison of regeneration and recruitment of shade-tolerant and light-demanding tree species in mixed uneven-aged forests : experiences from the Dinaric region
Klopčič, Matija (Author), Simončič, Tina (Author), Bončina, Andrej (Author)

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Research on the early stages of stand dynamics in uneven-aged forests often favours regeneration over recruitment of trees into forest stands. We contrasted both regeneration (i.e. seedlings and saplings existing in a stand) and recruitment (i.e. the number of trees annually crossing the threshold of 10 cm dbh) in two main stand types of uneven-aged forests (plenter and group selection). Data from 1710 permanent plots across the Dinaric Mountains in Slovenia were used to study recruitment; on 165 plots, regeneration was additionally analysed. The zero-inflated negative binomial modelling procedure was applied to identify factors influencing regeneration and recruitment. Total regeneration (30 212 ha−1) and that of light-demanding species (14 879 ha−1) were abundant. The latter regenerated more successfully in group selection stands compared with plenter stands. A large reduction in regeneration density was determined during its growth, which was more dramatic for light-demanding species (e.g. Acer pseudoplatanus) than for shade-tolerant species (e.g. Fagus sylvatica, Abies alba). The number of recruited trees (5.83 ha−1 y−1) seemed to be sufficient to maintain the uneven structure but was less promising for light-demanding species (0.13 ha−1 y−1). However, light-demanding species have the potential to establish and recruit into uneven-aged stands with a limited target proportion in the growing stock. Both indicators—regeneration and recruitment—are indispensable for understanding patterns of stand dynamics in uneven-aged forests.

Keywords:forest, regeneration, shade-tolerance, tree species, uneven-aged forests, light-demande, Dinaric region
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Number of pages:552-536
Numbering:#iss. #5, #Vol. #88
DOI:10.1093/forestry/cpv021 This link opens in a new window
COBISS.SI-ID:4117926 This link opens in a new window
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Record is a part of a journal

Shortened title:Forestry
Publisher:Oxford University Press
COBISS.SI-ID:15681029 This link opens in a new window

Secondary language

Keywords:raznomerni gozdovi, jelovo-bukovi gozdovi, sencovzdržne vrste, svetloljubne vrste, Dinaridi, pomlajevanje

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