EffectofdifferentharvestingintensitiesonforageproductionandvitalityofArtemisiasieberiAssospecies (Casestudy: MeimeSohstation)

Pasture is one of the most important and most valuable national resources. Obviously, the utilization of the pasture that it is associated with preservation and sustainability requires efficient planning and management. In this regard, the objective of present research was identification of temporal changes in the production, harvesting and regrowth of plants in different treatments and differences with the production control rate during 3 years. To achieve this goal, the study of effect the grazing intensities on forage production and vitality of Artemisiasieberi performed in Meime Soh location from 2006 to 2010. Treatments in each block include four grazing intensities of 25, 50, 75% and control (no harvest). In each treatment 10 basis of each species were used as replicates. The results analyzed by split plots in time with completely randomize design with ten replicates and three years by SAS software. Generally, the results showed that the highest production is appeared in grazing intensity control. Also, the effect of total production and plant vigor in Artemisiasieberi were significant. The harvest intensity is recommended 25-50% so that causes the stability of this specie, regard to the natural habitat features of this specie and also conditions and the behavior of its vegetative.