بررسي اثر مديريت دام و مرتع بر روند تغييرات پوشش گياهي (توليد، درصد تاج پوشش و تركيب كلاس خوشخوراكي) در مراتع ايستگاه مارگون استان كهگيلويه و بويراحمد

Effect of range and livestock management on vegetation of Margon station in Kohkiloyeh and Boyerahmad province, Iran

The pressure of livestock grazing and overall utilization of rangelands have caused vegetation and siol degradation in many natural rangelands of Iran. Changes of canopy cover, species composition, forage production, in Margoon station were studied. In this study cover estimated by quadrates and forage yield were measured by clipping and weighting method. Results showed that species diversity in this region was relatively good (about 31 species). Palatability class I, II and III were 12.6, 27.5 and 9.5 percent respectively. Cover, density and yield of Bromus tomentellus and Hordeum bulbosum increased inside the station (enclosure). Also, canopy cover changed from 33.4 to 55.5 percent. Forage production increased from 309 to 569.8 Kg/ha due to management practices.