Spatial pattern of Manna Oak trees (Quercus brantii Lindl.) in Bayangan forests of Kermanshah

In order to have a better recognition of plant communities, studying the spatial pattern of them is necessary to understand many of the issues in forest ecology and management. This study was conducted in Bayangan in Kermanshah province, as a part of Zagros forests. Sampling methods including fixed area plots and distance methods, such as T-square and Compound sampling, were used to investigate the spatial pattern of Manna Oak trees (Quercus brantii Lindl.). A grid of 100 m×100 m was applied and then 50 sample plots were established. The grid intersections were applied as the center of sample plots and the beginning of distance sampling techniques. Dispersal indicators such as Green, Morisita, Standardized Morisita, Johnson and Zimmer, TF, TN, Hopkins and C were used to analyze the spatial pattern. All of the applied indicators showed a clumped pattern for Quercus brantii. Among the distance indicators, TF, TN and C, presented better results than the other indices.