Evaluation of species diversity in Iranian-Turanian forest islands and its relation with climate factors and natural sites bionomics (A case study of Markazi Province)

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Evaluation of species diversity in Iranian-Turanian forest islands and its relation with climate factors and natural sites bionomics (A case study of Markazi Province)

Asadollah Mattaji, Iraj Mehregan, Sasan Babaei Kafaei, Mostafa Yousefirad, Siavash Aghakhani
J. Bio. Env. Sci.5( 6), 318-328, December 2014.
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Abstract

In order to study the species diversity and genetic diversity of Amygdalus scoparia and Pistacia atlantica, 21 thousand hectares of forest ecosystem were made in Markazi province and the effects of climatic and bionomic factors on the deployment and development of these areas and important factors were examined. Therefore biological units were made and 225 sample plots were taken with the method of least level of helical structure, the biological elements were noted by Brown Blunck’s method. Next species diversity in groups was checked by Simpson and Shannon – Viner and Species richness indicator. Finally ANOVA was performed and there were comparison of means. The results showed that the composition of forests in Markazi province included of 9 families and 12 species of trees and shrubs. The most spreading of forests are on the geological formation material such as: tuff, limestone and sandstone, shallow sandy, shallow sandy loam soil. They are in dry, cold and semi-arid zones. The result of plant species diversity tests showed that the third group is influenced climate and physiographic conditions, in term of ingredients vegetative, had the highest diversity in both Simpson and Shannon-Viner. Also it has the highest species richness. CCA test result had shown that Rhus coriana spreading was unaffected by rainfall directly, Iranian Quercus brantti spreading was unaffected by height, Barberries spreading was unaffected by temperature, Amygdalus scoparia and Pistacia atlantica were unaffected by rainfall and high. Biodiversity in Iranian- Touranian forests was directly related to the type of geological formation, altitude and slope. There was no significant correlation between the geographic and climatic conditions.

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