Ecological survey Rhus coriraria L. shrub in west of Iran

In order to ecologically investigate Rhus coriraria L. species and recognize its existing sites in west of Iran، boundaries of these species were located on the topographic map and 8 plots with areas of 100 square meters were implemented. Soil samples were collected from 0-10 and 10-20cm depth. Using analysis Kolmogorov-Smirnov، Levene and T-test were also used to compare that with and without Sumac covering with regard to biodiversity indices. The results showed Organic matter and Potassium in depth of 0-10 cm at Sumac covered area was greater than those at adjacent (without Sumac covering) area. Sumac covered area had greater values of Organic matter، nitrogen، calcium and clay percent in depth of 10-20 cm in comparison to adjacent area. In addition، the comparison of soil ingredients in different depths of the two areas showed that Electric conductance in depth of 0-10 cm and Nitrogen content in depth of 10-20 cm of sumac covering area was greater than those of adjacent area. Based on the results of this study، it can be concluded that Rhus coriraria L species in regions with soil types of high amounts of N، C-O، K، Ca and Clay and located in steep lands with north directions. Therefore، in order to plant this species and enrichment of this species in its natural habitat and other dry and semi-dry regions requirements of this species must be considered.