Determination of effective environmental factors on Sumac (Case study of Bideskan habitat)

This study aimed to determine the most important environmental factors affecting the Sumac. The independent samples t-test, Principal Component Analysis (PCA) and Canonical Correspondence Analysis (CCA) were used for comparing the natural Sumac habitat with control area (without the presence of Rhus coriaria L.). According to the Shannon-Weiner diversity index, Sumac habitat was more diverse and based on the evenness index of 0.717, it showed more uniform distribution compared to the control area. The results of the student’s t-test showed that a significant higher amount (between 30% and 140%) of electrical conductivity, saturated electrical conductivity, potassium, organic matter in the Sumac habitat. Finally, the results of statistical analysis done by PCA and CCA tests showed that among soil characteristics, saturation moisture percentage, electrical conductivity, nitrogen, organic matter, lime, potassium, silt and acidity had the most effect in separation of two regions and distribution of Sumac species.

Keywords:

Factor analysis , Sumac Specie , Soil characteristics , Bideskan habitat