Rangeland is a natural ecosystem which includes major resources of genetic reserves and different types of plant species and this biodiversity indicates stability of rangeland against environmental and biological variable factors. One of the physical destructive pressures on rangeland which reduce diversity and destruction of sensitive plant elements is overgrazing by livestock. Many studies show that grazing by livestock causes reduction of species diversity. It is necessary to evaluate effects of graving by livestock to find correct management policy and adopt a suitable strategy for trapping in development of rangelands and particularly protected zones. This research was conducted to determine effect of grazing management for all kinds of livestock (wildlife, wildlife and domesticated animals - domesticated animals) on physical and chemical characteristics of soil and species diversity. In this regard , three fields of grazing management different from similar ecological conditions including safe zone (only under grazing by wildlife), protected zone (under common grazing by wildlife and livestock) and free zone (only under grazing by livestock) in Bijar protected zone and its adjacent zones located in Bijar city , Kordestan Province were selected by protecting species diversity and showing vegetative potentials and introducing soil characteristics which indicate quality of soil and effect of management type in rangeland ecosystem . In any studied zone, canopy cover percent of the plant species was measured and was obtained from minimum level method of species of any zone and surface soil was randomly –systematically sampled in depth of 0-10 and 10-30 cm in four replications and in 100-meter distances and longer. Totally 24 soil samples were taken from surface and deep horizons and parameters of soil tissue , apparent special weight , organic matter , soil acidity , electric conduction , total nitrogen and absorbable potassium were measured. Then edaphic, human and managerial factors affecting each one of places were measured and nonparametric indices of species richness, species uniformity and diversity were calculated. To study relationship between species and environmental factors, Multivariate Data Analysis (ranking) were used. To compare means of the mentioned parameters in three studied zones, ANOVA was performed. Results of this research indicate significant differences of the studied zones for species rich indices (Menhink and Margalef). Based on results of this study, the best index is Margalef’s species richness. Among nonparametric indices of species diversity, hill N1 and Shannon –Winner indices showed significant difference. This difference was also found between safe zone and protected zone and free zone. So, organic matter, total nitrogen and absorbable potassium in safe and protected zone are more than those in free zone. Continual grazing also increases apparent special weight of soil, soil acidity and reduction of soil permeability. Therefore, protection of the zone caused to increase plant vegetation percent and species diversity particularly safe zone. Considering climatic conditions of the zone, grazing management had no considerable effect on electrical conduction and soluble cations. Studies mention that there is significant difference between the studied zones, safe zone and protected zone and free zone ,so that when we get far from human and managerial factors (distance fro, village, distance from water resources and road), species diversity and species richness will increase. Results also show that the presence of wildlife in protected zones is effective on modification of condition of rangeland and when only domestic livestock is present in rangeland physical and chemical characteristics of soil are regressive and species diversity is low. When only wildlife is present in the zone, species diversity is higher and soil characteristics have been balanced in rangeland. But in case wildlife is beside domesticated animal, soil characteristics will be regressive but species diversity will be higher. As result, logical presence of domesticated animal and wildlife beside each other in rangeland can cause to increase its plant diversity and increase balance and resistance of that ecosystem. Key words: grazing management, species diversity, physical and chemical characteristics, ranking, Bijar protected zone , Kurdistan Province.