Research of black locust and common hackberry stands’ structure in Subotica-Horgos sands and proposed silvicultural measures aimed at their improvement

The paper analyzes the elements of stand structure and proposes silvicultural measures to improve conditions in black locust (Robinia pseudoacacia L.) common hackberry (Celtis occidentalis aged 28 years Subotica-Horgos sands. research was performed on three permanent experimental plots which selective thinning (T1 T2) experimentally two plots, while one left as a control plot (C).Initially, 528 trees for tending per hectare were selected studied age, 448 80 T1, 320 208 T2.In T1 T2 at least competing tree cut down each tending, total 912 1072 with volume 53-55 m3?ha?1.In this way, basis created assessment growth response upcoming period.