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Effects of different harvesting intensities on forage production of Puccinellia distans in saline lands of West Azarbaijan province | ||
| تحقیقات مرتع و بیابان ایران | ||
| Article 12, Volume 21, Issue 3, December 2014, Pages 507-517 PDF (643.46 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijrdr.2014.12123 | ||
| Authors | ||
| Farhang Ghasryani; Mina Bayat* ; Afsaneh Jabarzare; Mirtaher Ghaemi | ||
| Abstract | ||
| The calculation of carrying capacity and allowable use of key species is necessary for sustainable range management. Vegetation degradation and soil and water loss can be prevented in the rangeland through calculating the actual carrying capacity. The aim of this research was to evaluate the effects of different harvesting intensities on forage production of Puccinellia distans in saline lands of West Azarbaijan Province. Initially, an area of 0.5 hectare was selected in saline rangelands, located around the Urmia Lake and in the first year of the study excluded from grazing. Forty individuals of the studied species were selected and harvested monthly by clipper at harvesting intensities of 25%, 50%, and 75%. Ultimately, the effects of harvesting intensities on phenological characteristics, forage production, vigor and vitality and mortality of each species were investigated. According to the obtained results, increased harvesting intensity resulted in decreased vitality of the studied species. Our results clearly showed that a harvesting intensity of 50% could be recommended with the least negative effects on plant characteristics and optimal use of forage. | ||
| Keywords | ||
| saline rangelands; Urmia; vigor and vitality; forage production; phenology | ||
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