Conversion of Pinus nigra plantations with natural regeneration in the Slovenian Karst : the importance of intermediate, gradually formed canopy gaps

Diaci, Jurij (avtor), Adamič, Tomaž (avtor), Rozman, Andrej (avtor), Fidej, Gal (avtor), Roženbergar, Dušan (avtor)

Since the mid-19th century, Pinus nigra plantations have played a key role in the restoration of degraded European landscapes. Nowadays, these plantations are aging and prone to natural disturbances, insect infestations, and diseases. For their successful gradual conversion, knowledge of optimal gap spatiotemporal dynamics is crucial. We studied herb and natural regeneration patterns along with site factors on 477 subplots within 44 plots distributed over four stand types: closed stand (14% diffuse light), open stand (21%), gap edge (23%), and gap (57%). Despite the abundant Quercus petraea, Q. cerris, and Q. pubescens mast year, no one-year seedlings were recorded, which is likely due to the summer drought. Short seedlings (h < 20 cm) of Quercus sp., Fraxinus ornus and Ostrya carpinifolia were more successful within closed stands. Short Quercus seedlings were positively associated with soil depth and negatively associated with soil nutrients, distance to seed trees, and Sesleria autumnalis coverage. Taller Quercus seedlings required more light than both of its strongest competitors and were positively related to humid soils and less rocky sites. Ungulate overbrowsing significantly impeded natural regeneration. The results indicate a satisfactory Quercus density for conversion and the importance of advanced regeneration, which should be gradually, but persistently, released by progressively widening gaps.

• Jezik: Angleški jezik
• Ključne besede: gap partitioning, microsite partitioning, topsoil moisture, microrelief, ground vegetation, overbrowsing, conversion, Pinus nigra, natural regeneration
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2019
• Št. strani: 13 str.
• Številčenje: Vol. 10, iss. 12, art. 1136
• PID: 20.500.12556/RUL-114124
• UDK: 630*22
• ISSN pri članku: 1999-4907
• DOI: 10.3390/f10121136
• COBISS.SI-ID: 5605030
• Datum objave v RUL: 18.02.2020

Gradivo je del revije

• Naslov: Forests
• Skrajšan naslov: Forests
• Založnik: MDPI
• ISSN: 1999-4907
• COBISS.SI-ID: 3872166

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 12.12.2019

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: velikost vrzeli, mikrorastišča, vlaga tal, talna vegetacija, objedanje rastlinojede divjadi, gozdovi