Evaluation of Some Soils Chemical and Physical Properties in Two Rangeland Sites (Case Study: Summer (Warm Season) Rangeland of Agh dash –Shahindej County, Western Azerbaijan Province)

Evaluation of soil quality has great deal of importance in clarification of impacts of land use types and management in rangeland landscapes. Vegetation composition is affected by wide varieties of edaphically factors, in turn accompany with other management approaches leading to specific vegetation dominance. For this, two grassland and shrub lands habitats were selected in Shahindej rangelands. Soils factors measurement was carried out in three depths 15-30 and 30-60 cm including P, C, K, N, EC, pH and percentages of lime, moisture, and silt ad clay contents. To separate means and data analysis T-test and software SPSS were used respectively. Results showed that under shrub lands sites, EC, moisture and clay percent's differed significantly at probability of 5%. There was no any significant difference between all soils factors for grassland. Grassland and shrub lands communities varied at 0-15 cm in percentages of lime, EC, sand and clay contents and EC, lime and clay percent showed significant difference in 15-30 and 30-60 cm, however this was not the case for other parameters. Finally, it can be included that all soils factors do not affect vegetation communities to the same degree. Through correct management, conversion of grassland to shrub lands can be prevented while taking edaphically properties in rangeland restoration plans and selecting suitable species according to ecological conditions. Having some knowledge on edaphically factors in plant ecology seems to be essential since it is a primary factor to determine vegetation type.