Iznalaženje koeficijenata za korekciju potencijalne vrednosti drvnih sortimenata u stvarnu na primeru bukve iz prorednih seča u Srbiji

Abstract

Obračun vrednosti drveta u šumama je oduvek bio posao pun izazova za procenitelja, posebno ako je uslov da tom prilikom ne dođe do seče stabala. Kao jedna od mogućnosti, može se koristiti metoda "modelnog" krojenja, koja praktično jedina omogućava procenu vrednosti bez seče stabala. Sastoji se u tome da se samo na bazi dimenzija stabla (d i h) i važećih standarda za proizvode eksploatacije šuma izvrši procena zapremina sortimentnih klasa, a kasnije, množenjem sa cenama, dobije tražena vrednost. Kako se u tom postupku ne uvažavaju druge karakteristike stabla (greške drveta), očito se radi o idealnoj (maksimalnoj) vrednosti. Da bi se ona usaglasila sa stvarnom vrednošću, koja je uvek niža od "modelne", nameće se zahtev za korekcijom "modelne" vrednosti odgovarajućim koeficijentima. U ovom istraživanju učinjen je pokušaj da se dođe do takvih koeficijenata za materijal iz prorednih seča u bukovim visokim (5.973 stabla) i izdanačkim (1.842 stabla) šumama i proveri stepen tačnosti prilikom njihove primene.

Calculating the value of wood in forests has always been a job full of challenges for the appraiser, especially if in that case the condition is not to cut down trees. As one of the possibilities, the method of "model" cutting can be used, which is practically the only one that allows assessment value without cutting trees. It consists in estimating the volumes of assortment classes only on the basis of tree dimensions (d and h) and valid standards for forest exploitation products, and later, by multiplication with prices, the required value is obtained. As other characteristics of the tree (wood defects) are not taken into account in this procedure, it is obviously an ideal (maximum) value. In order to harmonize it with the real value, which is always lower than the "model" value, a request is imposed for the correction of the "model" value with appropriate coefficients. In this research, an attempt was made to obtain such coefficients for material from thinning in beech high (5,973 trees) and coppice (1,842 trees) forests and to check the degree of accuracy during their application.