Publication Date
1993
Description
Production of semi-arid rangelands under the 3 conditions of complete protection, moderate and severe grazing were evaluated using double sampling techniques, For production, 1 m2 and for canopy coverage, 25x60 cm quadrats were used, In Gholestan National Park, which was protected for 30 years, the grasses Festuca ovi11a, Agropyro11 tricliopliorum, A. imermedium associated with Medlcago saliva and Onobrycl1is spp. dominated. The dry matter yield in this grassland was about 1500 kg/ha. Under moderate grazing on key areas, the yield declined to 700 kg/ha. The percentage of grasses decreased, liut there were still some grasses even in poor conditions. On the severely grazed area, the soil was degraded, the grasses extinct and unpalatable shrubs and forbs invaded. For grazing management, administrative agencies are seeking long-term plans based on the vegetation climax. The pastoral managers benefit from the immediate and short-term projects Thus, rating range condition and capacity on the reference area is unrealistic, if it .is not tangible. Co-ordination between the objectives of government and pastoral managers can be .achieved, based on the vegetation of key areas. Intensive improvements must be planned on the critical areas.
Citation
Mesdaghi, M, "Vegetation Analysis of Semi-Arid Regions in North-Eastern Iran" (2024). IGC Proceedings (1993-2023). 16.
https://uknowledge.uky.edu/igc/1993/session7/16
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Vegetation Analysis of Semi-Arid Regions in North-Eastern Iran
Production of semi-arid rangelands under the 3 conditions of complete protection, moderate and severe grazing were evaluated using double sampling techniques, For production, 1 m2 and for canopy coverage, 25x60 cm quadrats were used, In Gholestan National Park, which was protected for 30 years, the grasses Festuca ovi11a, Agropyro11 tricliopliorum, A. imermedium associated with Medlcago saliva and Onobrycl1is spp. dominated. The dry matter yield in this grassland was about 1500 kg/ha. Under moderate grazing on key areas, the yield declined to 700 kg/ha. The percentage of grasses decreased, liut there were still some grasses even in poor conditions. On the severely grazed area, the soil was degraded, the grasses extinct and unpalatable shrubs and forbs invaded. For grazing management, administrative agencies are seeking long-term plans based on the vegetation climax. The pastoral managers benefit from the immediate and short-term projects Thus, rating range condition and capacity on the reference area is unrealistic, if it .is not tangible. Co-ordination between the objectives of government and pastoral managers can be .achieved, based on the vegetation of key areas. Intensive improvements must be planned on the critical areas.
