Effects of precommercial thinning intensity on growth of Fagus orientalis Lipsky stands over 6 years

Autor: Alkan Günlü, Deniz Güney, Fahrettin Atar, İbrahim Turna
Rok vydání: 2021
Předmět:
Zdroj: Journal of Forestry Research. 33:937-947
ISSN: 1993-0607
1007-662X
Popis: Determining the most suitable intensities for precommercial thinning (PCT) in oriental beech (Fagus orientalis) stands, which cover substantial areas in Turkey and have a high economic and ecological value, is essential to provide higher economic return and obtain well-formed stems. The effects of various rates of PCT interventions on the growth characteristics of natural stands, located in the northern part of Turkey, were explored to determine appropriate thinning rates; 24 experimental PCT plots (4 PCT rates × 3 replications × 2 sites) were established in young thicket-stage stands and four precommercial thinning rates such as light (1 – 1.5 m spacing), moderate (1.5−2.0 m spacing) and heavy (2.5–3.0 m spacing) thinning, including a control plot (i.e., untreated), were applied. At the end of the 2007 and 2010 growing seasons, the diameter and height of the trees were measured and growth analyzed based on the 3-year and 6-year incremental growth. PCT levels were found to have significant (P
Databáze: OpenAIRE
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