Investigating the production and consumption vegetation of two species from Agropyron genus (Case study: Alamout mountain rangelands-Ghazvin)

Information about the characteristics and production fluctuations of plants with high nutritional value in grazing period are required for range management. The production and consumption of two important grasses were measured in the Semi-Steppe rangelands of Alamout mountain rangelands-Ghazvin. The same number of individuals from Agropyron trichophorum (Link) & Agropyron intermedium (Host) in enclosure and the grazed free area were selected and their production and consumption were measured during a four years period (from 1386 to 1389). The forage production and consumption of five plant individuals were measured inside and outside the enclosure in each month during the grazing season. The combined analysis of variance was used in a completely randomized design to analyze the data. According to the results, significant differences were observed between the monthly and yearly forage production and consumption (p 0.05). The utilization ratio and peak consumption times of these species during the grazing season were also significantly different (p 0.05).