نوع مقاله : علمی - پژوهشی
عنوان مقاله English
نویسندگان English
The aim of this study was to investigate characteristics and amount of biomass chages of gap makers in beech forests of Sourdar-Anarestan Forestry Plan, Noor. For this purpose, an area of 100 hectares was selected and physiographic characteristics, area and age of the gaps, also the diameter and height of the gap maker trees were measured by a full inventory whithin the gaps. The results showed that there is not a significant difference between the gap maker aboveground biomass changes in the studied area with physiographic characteristics and the canopy area of the stand, but there is a significant difference between gap maker species, gap age and the type of disturbance (α=0.01). The mean rank of gap maker trees biomass in the wind created gaps was the lowest value, and in the forest harvesting created gaps was the highest rank. The result of this study have shown, most type of disturbances only remove a small amount of biomass on the aboveground biomass in forests. The effect of disturbance on regeneration seems small at first, but then it has a significant effect on it and forest continuity. Therefore, by better understanding the existing disturbances, the most important factors of which in the region were wind, longevity and exploitation, it is possible to help the continuation of forest production and sustainability.
کلیدواژهها English
