Abdolhamid Hajebi; Mohammad Fayaz; Mohammad Amin Soltanipoor; Saeedeh Nateghi
Volume 30, Issue 1 , April 2023, , Pages 94-110
Abdolhamid Hajebi; Mohammad Amin Soltanipoor; Mohammad Fayaz; Ehsan Zandiesfahan
Volume 29, Issue 4 , January 2023, , Pages 485-497
Abstract
One of the important factors in determining the grazing capacity of rangelands is determining the preferred value of rangeland plants according to the type of livestock using the rangeland and its changes during the grazing season. In this study, the preference value of rangeland species in Zaminsang ...
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One of the important factors in determining the grazing capacity of rangelands is determining the preferred value of rangeland plants according to the type of livestock using the rangeland and its changes during the grazing season. In this study, the preference value of rangeland species in Zaminsang rangeland in Hormozgan province in the months of grazing season (January to May) and different years (2007-2010) was investigated. To determine the preference value, the method of utilization percentage of plant species and determination of preference index were used. The results were analyzed in a split plot statistical design in time in a randomized complete block design in SAS software and the statistical mean of the studied trait was compared with LSD test. The results showed that the most preferred livestock is primarily Aeluropus lagopoides and Atriplex leucoclada and Alhagi graecorum. The lowest percentage of exploitation was from Halocnemum strobilaceum and Desmostachya bipinnata. Based on the preference value index classification, Aeluropus lagopoides and Atriplex leucoclada species are relatively palatable species (relative preference), Alhagi graecorum and Halocnemum strobilaceum species are moderately palatable species (moderate preference) and Desmostachya bipinnata was one of the almost non-palatable (relative avoidance) species.
Abdolhamid Hajebi; Morteza Akbarzadeh; Mohammad Amin Soltanipoor
Volume 29, Issue 3 , October 2022, , Pages 181-190
Mohammadamin Soltanipoor; Saeedeh Nateghi; Abolhamid Hajebi; Mahshid Souri
Volume 29, Issue 2 , July 2022, , Pages 145-155
Abstract
Calculating rangeland capacity and determining the allowable use for important rangeland species is necessary for sustainable range management. By having the rangeland capacity and presenting accurate management plans, the destruction of vegetation and soil and the reduction of water ...
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Calculating rangeland capacity and determining the allowable use for important rangeland species is necessary for sustainable range management. By having the rangeland capacity and presenting accurate management plans, the destruction of vegetation and soil and the reduction of water resources can be prevented. Suitable grazing intensity causes continuous and economic use in the rangeland. Therefore, a study was conducted on the effects of different harvest intensities on forage production of three species Halocnemum strobilaceum, Desmostachya bipinnata, and Aeluropus lagopoides Hormozgan province three years from 2008 to determine the most appropriate level of exploitation. Experimental treatments included four harvesting intensities of 25, 50, and 75% and control (without harvest). In each treatment, ten rootstocks of the species were considered replicates and evaluated on each of the dependent variables. The results were analyzed in SAS software. The results showed that harvest intensity affected the forage production and all treatments were significantly different from the control. Therefore, up to 50% of the allowable use for Aeluropus lagopoides and Desmostachya bipinnata, and up to 75% for Halocnemum strobilaceum is suggested to maintain the health and vigor of these species during the harvest years. According to the above findings, this allowable use can be considered for similar areas in terms of climate together with information about other plants.
Abdolhamid Hajebi; Hamidreza Mirdavoudi; Mohammad Amin Soltanipoor
Volume 29, Issue 1 , February 2022, , Pages 66-85
Abstract
Taverniera spartea is one of the most important species in the Gulf and Omani rangelands. In this study, some ecological needs of Taverniera spartea and their response to soil and topographic factors in three main habitats in Hormozgan province (Siahoo, Ahmadi and Bashagard) were determined. The results ...
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Taverniera spartea is one of the most important species in the Gulf and Omani rangelands. In this study, some ecological needs of Taverniera spartea and their response to soil and topographic factors in three main habitats in Hormozgan province (Siahoo, Ahmadi and Bashagard) were determined. The results showed that the percentage of cover was significant at the level of 1% and the percentage of bare soil and the percentage of rocks and pebbles at the level of 5% was significant. Applying the generalized collective model for each of the environmental variables showed that the variables of soil lime percentage, clay percentage, acidity, soil organic carbon content, soil nitrogen and bare soil percentage on species yield are significant. Increasing the percentage of soil clay from the Monotonic decrease, increasing the acidity of the soil, from the Bimodal distribution, increasing the amount of soil lime and also the percentage of bare soil from the Unimodal and increasing the percentage of organic carbon and soil nitrogen from the Monotonic increase followed. The phenological study of the species showed that the growth of this plant starts from the second decade of November and from the third decade of May, enters a stage of stagnation. Considering the nutritional value of the species and its role in the protection of rangeland soil, it is recommended to plant this species in the degraded rangeland areas that have the conditions for its establishment.
Mohammadamin Soltanipour; Abolhamid Hajebi
Volume 28, Issue 3 , October 2021, , Pages 435-449
Abstract
In order to investigate the preference value of plants, this study was conducted in a rangeland in Hormozgan province. To determine the preference value in this region, two methods of timing, production and consumption of plant species were used using Tali goats during the months of grazing season (January ...
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In order to investigate the preference value of plants, this study was conducted in a rangeland in Hormozgan province. To determine the preference value in this region, two methods of timing, production and consumption of plant species were used using Tali goats during the months of grazing season (January to May) for 4 years (2007-2009). The results of analysis of variance for the preference value in the timing method (using a video camera) showed that there is a significant difference in terms of forage consumption time between species. So that Alhagi persarum with the highest mean (43.9%) along with Aeluropus lagopoides with an average (31.5%) were in a class statistically, followed by Desmostachya bipinnata, Atriplex leucoclada, Halocnemum strobilaceum, Suaeda fruticosa, Tamarix mascatensis and annuals are 6.6%, 5.4%, 3.6%, 2.8%, 2.3% and 3.7%, respectively. Finally, Lycium shawii plant with the average of 0.2% has the lowest class. There was also a significant difference in the interaction factor of year and species, so that Alhagi persarum in the second year (2008) was ranked first with 68.7%. The results of analysis of variance for species exploitation percentage also showed a significant difference between the study years. The first, third and fourth years were in one group and the second year with the lowest percentage of exploitation (36.4%) was in the second group. The highest percentage of exploitation belonged to Aeluropus lagopoides with 54.3% in 2009. According to the preference value index classification, Aeluropus lagopoides, Atriplex leucoclada and Alhagi persarum were among the moderately palatable species (class II) and Halocnemum strobilaceum and Desmostachya bipinnata were among the almost non-palatable species (class III).