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Research Journal of Biological Sciences
Year: 2008  |  Volume: 3  |  Issue: 2  |  Page No.: 186 - 188

Comparison of Plant Species Diversity in 3 Grazing Systems

J. Panahy, A. Mahmudzadeh and A. Hasanzadeh    

Abstract: Three treatments were used to evaluate the effect of grazing intensity on plant diversity, richness and evenness in Rhazhan rangeland (West Azerbaijan province, Iran). We used the Shannon-Wiener index to evaluate the plant species diversity and the Pielou`s index for calculation of species evenness. Sorensen`s similarity index was used to evaluation of similarity between vegetation of 3 sites. The study was showed that plant diversity, richness and evenness affected by grazing intensity. Also plant species composition and cover were affected by grazing intensity.

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