Investigation effect of environmental factors on the distribution of Suaeda aegyptiaca

The distribution of plant species in rangeland ecosystems is influenced by environmental factors. The purpose of this study was to investigate the relationship between environmental factors and the distribution of Suaeda aegyptiaca species in Fars province using the principal component analysis (PCA) method. The range of distribution of Suaeda aegyptiaca species in the lands around Neyriz city was identified and after determining the sampling areas, it was done using the minimum surface method using snail plots and surface / species curve. In a number of sampling plots, soil samples were taken from the active depth of the soil sample and the parameters of soil texture, and Bd, Ec, K, C/N, C%, SMS, P, Caco3, N, were measured. The results showed that the amounts of N, P, C, Ec, pH, Caco3, Bd, sand, silt and clay had a significant effect on the distribution of Suaeda aegyptiaca species. In contrast, K and C/N values did not have a significant effect on the distribution of this species.