Naser Baghestani Meybodi; Hosein Arzani; Mohammad Taghi Zare; Jalal Abdollahi
Volume 11, Issue 2 , August 2019, , Pages 137-162
Hosein Arzani; Jalal Abdollahi; Mehdi farahpour; Mojganolsadat Azimi; ali Ashraf Jafari; Mahmoud Moalemi
Volume 12, Issue 3 , August 2019, , Pages 263-286
Hosein Arzani; Hamidreza Mirdavodi; Mehdi Farahpour; Mojganolsadat Azimi; Seyed Hasan Kaboli; Abasali Sanadgol; Morteza Akbarzadeh; Valiollah Mozafarian
Volume 12, Issue 4 , August 2019, , Pages 409-436
Fatemeh Alishah Eratboni; Hosein Arzani; Seyed Akbar Javadi; Mehdi Farahpour
Volume 26, Issue 2 , July 2019, , Pages 379-387
Abstract
Given the importance of rangelands for livestock grazing and conservation of the natural ecosystem, it is important to consider the factors contributing in the conservation and development of rangelands to achieve sustainable development goals. Therefore, beneficiaries’ participation ...
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Given the importance of rangelands for livestock grazing and conservation of the natural ecosystem, it is important to consider the factors contributing in the conservation and development of rangelands to achieve sustainable development goals. Therefore, beneficiaries’ participation in rangeland improvement and reclamation plans as a new approach to natural resource management is essential. Accordingly, the purpose of this study was to investigate the factors affecting the participation of beneficiaries in the implementation of rangeland plans in the rangelands of Savadkouh watershed. Using Cochran formula and random sampling method, 111 beneficiaries were selected as the sample and economic and social factors influencing beneficiaries ' participation such as age, level of education, number of rachers, awareness of range management plans, number of livestock and income level were investigated. The results showed that age had a significant negative effect on participation in the implementation of range management plans. It seems that, despite background and experience, the poor physical ability as well as the type of thinking have contributed to the lower participation of aged beneficiaries. Also, the most elasticity was related to the income level, so that by increasing one percent in the income of beneficiaries, the likelihood of increased participation in the implementation of range management plans would increase 5.612 percent and with the increase of income, the likelihood of beneficiaries’ participation would increase by 0.325 units
Javad Moetamedi; Hosein Arzani; Mohammad Jafari; Mehdi Farahpour; Mohammad Ali Zarechahouki
Volume 26, Issue 1 , June 2019, , Pages 241-259
Abstract
The calculation of the grazing capacity requires the consideration of factors affecting it. Due to the effective factors, the long-term grazing capacity model was designed, and then the capacity of the rangelands was calculated. Grazing capacity was calculated by the proposed ...
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The calculation of the grazing capacity requires the consideration of factors affecting it. Due to the effective factors, the long-term grazing capacity model was designed, and then the capacity of the rangelands was calculated. Grazing capacity was calculated by the proposed model in four steps including estimating the average good production, calculation of available metabolic energy, the daily requirement of the animal unit and grazing capacity. Due to the drought condition of habitats and fluctuation of forage production in different years, one cannot calculate grazing capacity with once production measurement for the long-term. Hence, the average good production of habitats was determined and based on that, long-term grazing capacity was calculated. The average good production of Golestan Kouh, Vardast, and Pashmakan habitats in the statistical period of 6-7 years was estimated to be 425, 233.8 and 343.3 kg/ha, which are related to normal years in terms of rainfall. The grazing capacity of habitats in a quarterly period of four months was calculated to be 0.8, 0.3 and 0.5 animal unit per hectare so that if there is a drought for 12 consecutive months, there will be no damage to vegetation. Meanwhile, there is not much damage to the beneficiary and he will not have to sell too much of his livestock. The area needed for grazing of an animal unit in the rangelands was suggested to be 1.3, 3.3 and 2 hectare. This amount is recommended to be one hectare for a 30-year period based on a common method in range management plans. This indicates the need to pay attention to the factors affecting the grazing capacity and emphasizes the application of the proposed model in order to calculate the rangeland capacity.
Mehdi Zohdi; Hosein Arzani; Seyed Akbar Javadi; Adel Jalili; Gholamhosein Khorshidi
Volume 25, Issue 4 , February 2019, , Pages 898-910
Abstract
Rules and regulations in the last few decades have had a great impact on rangelands and its exploitation; on the other hand, these rules are the foundation of the policies governing the type of management and relevant government agencies. The aim of this research was to examine ...
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Rules and regulations in the last few decades have had a great impact on rangelands and its exploitation; on the other hand, these rules are the foundation of the policies governing the type of management and relevant government agencies. The aim of this research was to examine the effectiveness of the laws and regulations related to the rangeland and range management, with the help of a survey of experts and rangeland specialist. In this regard, the community of rangeland specialists or natural resources experts, who were empirically and professionally related to rangeland and range management issues, was identified and their opinion was collected through questionnaires. The audience was divided into three main groups of executive and research experts and academics. A total of 268 questionnaires were completed and the responses were analyzed using descriptive statistical methods. The results showed that, in general, the existing rules and regulations could not prevent the degradation of rangelands and result in rangeland conservation and improvement, and these rules have greatly contributed to the collapse of the range management systems in the past, while an appropriate management system has not been replaced. Moreover, a large part of respondents believed that the laws and regulations need to be reviewed and updated.
Morteza Akbarzadeh; Mohammed Reza Moghadam; Adel Jalili; Mohammad Jafari; Hossein Arzani
Volume 13, Issue 4 , February 2007, , Pages 324-336
Abstract
The pressure of livestock grazing and overall utilization of rangelands have caused vegetation and soil degradation in many natural rangelands of Iran. Grazing prevention is one of the rangelands rehabilitation methods, which is effective in renovation of rangelands. The effect of 24 years of grazing ...
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The pressure of livestock grazing and overall utilization of rangelands have caused vegetation and soil degradation in many natural rangelands of Iran. Grazing prevention is one of the rangelands rehabilitation methods, which is effective in renovation of rangelands. The effect of 24 years of grazing protection were studied on vegetation dynamics of Kuhrang region, in two years growing seasons (2003 and 2004). Parameters from rangelands characteristics were collected and analyzed. Results showed that after 24 years livestock exclusion in Kuhrang, total inside canopy cover was higher than outside (P<0.01). Grasses and forbs were higher inside than outside (P<0.01), but shrubs were not significantly different (P>0.05). Over half of inside canopy cover belonged to decreasers and increasers, which were little or negligible outside of exclosure and 95 percent of outside plant composition belonged to invaders. Most desirable species had greater inside cover than outside(P<0.01). Klucia odoratassima, Scorzonera calyculataand Delphinium cyphoplectrumhad greatest inside canopy cover, than other forbs. More than half of inside and 95 percent of outside cover referred to decreasers and increasers. Approximately 38 and 1.2 % of inside and outside forage production belonged to decreasers and increasers respectively. Regeneration was higher outside of exclosure in Astragalus adscendens, in first year. Litter was higher inside and bare soil outside the exclosure (P<0.01). Inside and outside range condition was good and very poor, respectively.
Javad Torkan; Hosein Arzani
Volume 9, Issue 2 , September 2001, , Pages 605-618