Investigating the Effects of Different Harvesting Intensities on Forage Production in Sahand Rangelands of Eastern Azerbaijan Province, Iran
محورهای موضوعی : Ecology, Autecology and Synecology
Mohammad Reza Najibzadeh
1
(Forests and Rangelands Research Department , East Azarbaijan Agricultural and Natural Resources Research and Education Center.AREEO, Tabriz, Iran.)
Mina Bayat
2
(Range Research Division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.)
Saeedeh Nateghi
3
(Range Research Division, Research Institute of Forests and Rangelands, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.)
Mohammad Hasan Pezeshki
4
(Forests and Rangelands Research Department , East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran.)
کلید واژه: climate, Allowable use, Key species, Sahand Rangelands,
چکیده مقاله :
Due to the decreasing trend of rangelands, many native species are vulnerable and even at risk of extinction. Therefore, seed preservation and propagation of native species of rangelands and recognition of the characteristics of grazing, drought tolerance and their production potential are very beneficial. In this study, the five species of Festuca ovina, Festuca rubra, Bromus tomentellus, Alopecurus textilis and Thymus kotschyanus, which are the key species of Sahand Rangelands in Eastern Azerbaijan province, were studied. Treatments in each block included four grazing intensities, namely 25%, 50%, 75% and the control (no harvesting). The harvest was performed during the growing season and at the beginning of the grazing season for four years (2007-2010). Results of statistical analysis showed that the effect of harvesting intensity, year and intensity by year interaction were significant for forage production of F. rubra, B. tomentellus and A. textilis (p<0.01). However, the effect of year and intensity for T.kotschyanus and the effect of year for F. ovina were not significant. Results showed that forage production of species was different in years. Higher forage production in 75% harvest intensity was obtained in B. tomentellus, F. rubra and A. textilis with average values of 15.8, 18.1 and 16.7 g/p, respectively. In latter species, forage production was much affected by climate changes rather than the harvest intensity. The highest forage production of F. ovina was obtained in light harvest. Increasing the harvest intensity may decline plant vitality. It was recommended that allowable grazing intensity of Sahand rangeland might be 25% up to 50% harvesting intensity for preserving these species.
Ahmadi, A., Ghasriani, F., Bayat, M., Ahmadi, E., and Zare, N. 2013. Investigation the different harvesting simulation treatment on production and vigority of Bromus tomentellus (case study: Qarebagh rangelands, Western Azerbaijan. Journal of Range and Desert Research. 20(2):320-332. (In Persian).
Ahmadi, A., Ghasriani, F., Sanaee, A., Bayat, M.,Ahmadi, E. 2014. Evaluation of effects of different cutting intensities on generative and vegetative attribute of Koeleria cristata in Gharebagh rangelands-West Azarbaijan province. Watershed Management Research (Pajouhesh & Sazandegi) 103: 138-146 (In Persian).
Arzani, H., Ghanimat, A. and Zare-Chahuki, M. A. 2009. Evaluating efficiency of grid method for estimating the production and utilized intensity of rangelands, Iranian Journal of Rangeland, 3(4): 611-622 (In Persian).
Bayat, M., Arzani, H., Jalili, A and Nateghi, S., 2016a. the effects of climatic parameters on vegetation cover and forage production of four grass species in semi-steppe rangelands in Mazandaran province, Iran. Journal of rangeland Science 6(4): 368-376.
Bayat, M., Arzani, H., Jalili, A., 2016b. The effect of climatic conditions on vegetation cover and production in steppe rangelands (Case Study: Alavijeh and Khondab-Isfahan province). Journal of Range and Desert Research. 23(2): 357-372 (In Persian)
Elmi, A., Jafari, A.A., Farnia, A., and Bakhtiari, M., 2014. Studying Varieties and Relationships of Yield and Quality Traits in Tall Wheatgrass (Agropyron elongatum) under Two Cutting Management Procedures. Journal of Rangeland Science 4(3): 224-233.
Fayaz, M.,Ghasriani, F. Ehsani, A., Akbarzadeh, M., 2010. Determining the amount of harvestable forage in rangelands, National Project of Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran (In Persian).
Firincioglu, H.K., Seefeldt, S.S., Ahin, B.S. and Vural, M., 2008. Assessment of grazing effect on steppe rangelands, in the semi-arid Central Anatolian region of Turkey. Journal of Arid Environments. 73: 1149-1157.
Fulstone, F., 2009. Annual operating instruction in Missouri flat allotment for the 2009 grazing season. USDA, Forest services, Humboldt-Toiyabe national forest, file code :2210.USA
Ghahareh Ardestan, A., Basiri, M., Wahabi, M., Torkesh, M., 2014. The effect of utilization of forage production on four range species.Journal of Applied Ecology 3(8): 77-69 (In Persian).
Ghasriani, F., Bayat, M., Ghaemi, M.T., and Yeganeh, H., 2017. Effect of different harvesting intensities on forage production and vigority and vitality of Aeluropus littoralis species (Case study: in Tezkhrab-uromieh saline lands of West Azarbaijan province). Journal of Range and Desert Research 24(1): 142-151 (In Persian).
Ghasriani, F., Bayat, M., Jabarzare, A., and Ghaemi, M.T., 2014. Effects of different harvesting intensities on forage production of Puccinellia distans in saline lands of West Azarbaijan province. Journal Range and Desert Research. 21(3): 507-517. (In Persian)
Hosseini, A., Ghasriani, F., 2013. Investigation on allowable use of sheep fescue (Festuca ovina L.) at Saraliabad Gorgan rangelands Seyed. Journal of Range and Desert Research. 20(2): 407-416 , (In Persian).
Holechek, J. L., Cole, R., Fisher, J. and Valdez, R., 2003. Natural resources: ecology, economic and policy. Rangelands, 26:118-223.
Karimi, GH., Yeganeh,H., Barati, H., Ghasriani, F. 2013. The effect of different levels of utilization of forage production on vegetative and generative characteristics of Ajuga chamaecistus at Kordan in Alborz province. Range and Watershed Journal 67(2): 316-305 (In Persian).
Khalili, A. 1991. Integrated water plan of Iran. Vol. 4: Meteorological studies, Ministry of power, Iran.
Khodagholi, M., Ghasriani, F., Bayat, M., and Azimi, M.S., 2012. Effect of different harvesting intensities on forage production and vigority of Stipa arabica species in Isfahan Soh site. Iranian Journal of Range and Desert Research, 19(3): 512-521. (In Persian)
Mirhaji, T., Ghasriani, F., and Azhir, F., 2016. Harvesting tolerance of Agropyron intermedium, Oryzopsis holciformis and Thymus fedtschenkoi Ronniger. In Firoozkooh Rangelands. Journal of Range and Desert Research. 23(2): 265-274 (In Persian)
Mushtaque, M., Ishaque, M., Ahmad Alias Haji, M. & Bakhush, A., 2009. Effect of clipping stage on growth and herbage yield of blue panic grass. Pakistan Journal of Science, 61(4): 229-233.
Saedi, K. and Ghasriani, F., 2011. Study the seasonal changes of production and utilization of range plants in key ranges of 5 bioclimatic zones of Iran (Saral-e- Kordestan). Research Institute of Forests and Rangelands publication, 90 p. (In Persian)
Shooshtari, M., Ghasriani, F., and Ghorbankhani, A., 2017. Effects of different harvesting intensities on forage production and other characteristics of Bromus tomentellus Boiss. In Gavanban Rangelands of Kermanshah Province. Iranian Journal of Rangeland.23(4):810-822 (In Persian).
Siyah Mansoor, R., Ghasriani, F. and Khademi, K. 2011. Final research report of "Study the seasonal changes of production and utilization of in some key species in five bioclimatic zones of Iran (Zaghehe-Lorestan)". Research Institute of Forests and Rangelands publication, Tehran, Iran, 86p.
Zahedi, S., Ghasriani, F. Bayat, M., 2012. Effects of different harvesting intensity on production, strength and vitality of Bromus tomentellus (case study: Majid Abad Qorveh rangelands, Kurdistan). Iranian Journal of Range and Watershed Research, 66(2): 276-267 (In Persian).
Zarekia, S., Ghasriyani F., Bayat M., Nemati H., 2015. Determine the most appropriate of allowable use of Salsola laricina (Case study: Khoshkerood-e- saveh). Journal of Range and Desert Research, 22(2): 266-274, (In Persian).
