THE IMPACT OF LOGGING ACTIVITY ON RESIDUAL TREES - A CASE STUDY FROM SOUTHWEST ROMANIA.

The paper aims to analyze the impact of logging activity on residual trees from logging yards from southwest Romania, located in plain, hill and mountain area and covered with a large variety of silvicultural works-first-intervention cuttings, preparatory and seed-cutting (shelterwood systems or selection systems), cuttings to increase light availability for regeneration (shelterwood systems), final cuttings (shelterwood systems). The impact of logging activity on the residual trees was analyzed based on the data obtained from the measurements made at the end of the vegetation season of 2019 and the beginning of the vegetation season of 2020. Based on the data obtained, the total number of tree damages in the variants studied on relief forms, the relationship between the number of tree damages and different stand characteristics, and the damages distribution by their types in the studied variants, were analyzed. Trees damage evaluation was done by determining damage indexes calculated as a ratio between the volume of damages found and the volume of damaged trees. The most important conclusions have been discussed in the context of other researches in the field. [ABSTRACT FROM AUTHOR]