عنوان مقاله [English]
One of the main components of forest stand structure is spatial pattern and positioning of trees next to each other. Stand’s spatial patterns are measured and mapped by measuring tree locations in the stand and entering each coordinates into analytical frameworks. The aim of this study was to compare K-Ripley and distance indices in order to determine spatial pattern of Quercus Brantii in Choghasabz forests of Ilam. Using systematic-random sampling with 100×100m dimensions, 53 samples were selected. K-Ripley index and Hopkins, Hinez, Eberhart and C distance indices were used to analyze the spatial pattern in the area. Results of K-Ripley index showed that spatial pattern of oak trees in the study area are random pattern. But the results of Hopkins, Hinez, Eberhart and C distance indices showed a clumped pattern for Quercus brantii in the study area.