Abstract: The climate change and increasing of livestock intensify pasture degradation. Especially it is more revealed in the forested area and steppe zone that constitute the main resource of steppe zone.[1] The basic reasons of these are nomad's seasonal movement from place to another suitable place is being minishing and distance between of these are getting close also increasing of livestock. In last years, herdsmen nomadic traditions and styles have been changing extremely because of that they move from countryside to more settled area such as sum, center of province and city etc. In a result of that herdsmen affect to the pasture is determined consequently it would bate nomad migration also herders and sum, sectional boards can work together to save the grassing field and remediation pasture. Therefore , this article included poll over herdsmen usage of grassing land, movement distance and the pasturing of animals in groups seeking good pasture away from the regular pasture.
