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Spatial pattern of Pistacia atlantica desf. in zagros forests of Iran

Mahsa Karimi, Hamid Jalilvand, Milad Pourahmad

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J. Bio. Env. Sci.5(3), 299-307, September 2014


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Studying the spatial pattern of plant community is to understand and recognize this community and is essential to understand many ecological and forest management issues. The purpose of this study was to investigate the performance of Winkelmass index in determining the spatial pattern of Pistacia atlantica Desf. in Zagros forests. A field with an area of 30 hectares was selected in Qalajeh forests inthe Westof Iran. Completed sampling was conducted and stem map of Pistacia atlantica Desf. was produced. The absolute spatial pattern of Pistacia atlantica Desf. was determined using Nearest Neighbor Index. In order to determine the spatial pattern of Pistacia atlantica Desf. Using Winkelmass index, 60 sampling points were selected on the stem map and the required angles were measured. The values of Nearest Neighbor and Winkelmass Index were 1.09 and 0.45, respectively, which indicated uniform tended to random pattern in both indices for Pistacia a tlantica Desf. Therefore, it is concluded that the Winkelmass index has suitable performance in evaluating the spatial pattern of Pistacia atlantica Desf. in Zagros forests.


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Spatial pattern of Pistacia atlantica desf. in zagros forests of Iran

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