Strukturne i proizvodne karakteristike veštački podignutih sastojina crnog oraha i potreba njihove restitucije na različitim tipovima šuma u Sremu

Abstract

Uporednom analizom proizvodnih efekata ostvarenih u kulturama crnog oraha i efekata postignutih u prirodnim sastojinama autohtonih vrsta drveća na istim tipovima šuma u Sremu, pri čemu je u obzir uzeta i ekološka stabilnost sastojina različitog porekla, nedvosmisleno se došlo do zaključka da veštački podignute sastojine crnog oraha treba restituisati sastojinama hrasta lužnjaka. Restituciji sastojina visoke proizvodnosti i dobre potencijalne sortimentne strukture treba pristupiti tek nakon isteka ophodnje, dok biološki i ekonomski momenti nalažu da se u sastojinama lošeg zdravstvenog stanja i niske proizvodnosti ova gazdinska mera sprovede što pre.

The comparative analysis of productive effects realized in black walnut plantations and the effects reached in natural stands of autochthonous tree species in the same forest types in Srem, taking into account also the ecological stability of stands of different origin, shows clearly that artificially established black walnut stands should be substituted by stands of pedunculate oak. The restitution of stands of high productivity and good potential assortment structure should be undertaken only after the end of the rotation. Biological and economic reasons indicate that this management treatment should be performed as soon as possible in the stands of poor health condition and low productivity.