Dependence of high beech stand form factor and form height on site and stand factors
Zavisnost zapreminskog koeficijena i oblikovisine visokih sastojina bukve od stanišnih i sastojinskih faktora
Izvod: Istraživana je zavisnost zapreminskog koeficijenta i oblikovisine visokih raznodobnih sastojina bukve od stanišnih i sastojinskih faktora. Osnovni material istraživanja činili su podaci prikupljeni u sedam reprezentativnih sastojina bukve, pomoću jednostavnog sistematskog uzorka. Postavljeno je 160 probnih površina, oblika kruga i veličine 500 m2, na kojima je izvršen potpun premer svih stabala prečnika iznad 10 cm. Za obradu podataka primenjeno je više dendrometrijskih i statističkih metoda. Dobijeni su regresioni modeli za procenu veličine zapreminskog koeficijenta i oblikovisine visokih sastojina bukve. Sagledan je bruto i neto uticaj stanišnihi i sastojinskihi faktora, i izdvojeni najznačajniji: srednja visina sastojine (Lorajeva), srednji prečnik sastojine po temeljnici, i bonitet staništa (tarifni niz). Utvrđeno je da se dobijeni rezultati mogu primeniti u praksi.
Abstract: Dependence of the high uneven-aged beech stands form factor and form height on the site and stand factors was studied. The data collected by the simple systematic sample in seven representative beech stands were the basis study materials. One hundred and sixty sample plots, circle-shaped, 500 m2 size, in which all the trees above 10 cm diameter were measured, were set. Several dendrometrics and statistics methods were applied for data procession. The regression models for the estimate of the high beech stand form factor and form height were obtained. The gross and net influences of the site and stand factors were studied, and the most important of them were singled out: stand mean height (Lorey’s), stand quadratic mean diameter and site class (tariff series). It was determined that the obtained results can be easily applied in practice.
engleski
2008
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Ključne reči: bukva, sastojina, zapremina, zapreminski koeficijent, oblikovisina.
Key words: beech, stand, volume, form factor, form height