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Tree spatial patterns in the Zagros forests (Case study: Kurdistan forests; western part of Iran)

Naghi Shabanian, Soheil Soheili Esfahani, Maziar Haidari

This research was carried out in the Blake forests, Baneh region, Kurdistan Province, northern Zagros forest, western part of Iran conducted on oak forests. The main purpose of the present study was to determine the tree spatial patterns in Blake forests. We used the quadrate methods and inventory methods designed randomizesystematic methods applying the circle sample plots 1000 m2 in the 100×100 meter net. In each plot some information included kind and number of woody species were recorded. To analysis of data for detect of forest spatial patterns was used quadrate method using variance/mean ratio, Green and Morisata indices applying Ecological Methodological software. The results showed that five tree species were found in the Blake forest while Quercus libani Oliv and Quercus infectoria Oliv were the most dominant woody plants in this area. Based on these results the quantity of Morisata, variance /mean ratio and Green indexes indicate the uniform spatial pattern for trees in the northern Zagros forests. This result may be because of intensive human utilization as has modified the spatial patterns of these forests.