Farhang Ghasriani, EhsanZandi Esfahan, Ali Mohebbi
Rangeland Research Division, Research Institute of Forests and Rangelands, Tehran, Iran
Key words: Forage production, allowable use, Festucaovina, semi-steppe, rangeland.
Current research was carried out in selected sites of semi-steppe region including Badamestan (Zanjan), Firoozkooh (Tehran), Gharebagh (West Aazarbaijane), Zaghe (Lorestan), Ghavan- ban- hersin (Kermanshah), Alamot (Qazvin), Ghorveh (Kurdistan), Ser and Til Abad (Gholestan). Festucaovina is a key and palatable species, having a considerable portion in rangeland yield. For this purpose, 40 similar species of Festucaovinawere selected in each site. Selected species were exposed to different harvesting intensities of 25, 50 and 75 as well as 0% as control group. Data were analyzed by SPSS and MSTATC and Duncan’s Multiple Range Test were used for mean comparisons. According to the results, a higher production was recorded for the bases on which a light harvesting intensity was implemented. Significant differences were found among the studied years in terms of forage production, indicating the effects of climatic factors including precipitation and temperature. In general, rainfall and temperature were identified as the first and second limiting factors for the growth of Festucaovina, respectively. No significant differences were recorded for 25 and 50% harvesting intensities in terms of studied traits but a harvesting intensity of 75% negatively affected Festucaovina. Consequently, a harvesting intensity of 25-50% is recommended as the best allowable use for Festucaovina in this vegetative region and other similar areas.
Get the original articles in Source: Volume 4, Number 3, March 2014 – JBES
Published By: International Network for Natural Sciences