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.
Mohammad Amin Soltanipoor; Ehsan Zandi Esfahan
Volume 27, Issue 3 , October 2020, , Pages 485-494
Abstract
Utilization of saline lands with the aim of producing lignocellulosic biomass, which has no nutritional value and can be converted to ethanol and at the same time has no effect on human food production, seems necessary. Halophytes and salt-tolerant plants that produce high biomass using saline resources ...
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Utilization of saline lands with the aim of producing lignocellulosic biomass, which has no nutritional value and can be converted to ethanol and at the same time has no effect on human food production, seems necessary. Halophytes and salt-tolerant plants that produce high biomass using saline resources (saline water and soil) can be considered as an important alternative in this regard. For this purpose, this study with the aim of investigation of ethanol producing potential of five species of Auluropus lagopoides, Atriplex leucoclada, Desmostachya bipinata, Halopyrum mucronatum and Halocnemum strobilaceum was conducted in Hormozgan province in 2016. Plant samples were collected at three phenological (vegetative, flowering and seeding) stages from two saline lands in Zaminsang and Sirik, Hormozgan province and three parameters of lignin, hemicellulose and cellulose were measured. Data analysis of variance was performed as a factorial experiment based on the completely randomized design with three replications and comparison of means with Duncan's multiple range test in SPSS-14 software. The results showed that Halopyrum mucronatum had the potential to produce ethanol in all three vegetative stages. Halocnemum strobilaceum had the potential for ethanol production only at the vegetative growth stage and Aeluropus lagopoides and Desmostachya bipinata had the potential for ethanol production only at the seed ripening stage.
Mohammad Amin Soltanipoor; Rahman Asadpour; Mohammad Fayaz
Volume 27, Issue 2 , June 2020, , Pages 224-237
Abstract
Helianthemum lippii and Tavernieracuneifoliais are the most important broadleaf plants of Hormozgan province, Iran. To investigate the establishment of these species, this study was conducted at the Watershed Management and Natural Resources Station of Dehgin (Hormozgan province) from November ...
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Helianthemum lippii and Tavernieracuneifoliais are the most important broadleaf plants of Hormozgan province, Iran. To investigate the establishment of these species, this study was conducted at the Watershed Management and Natural Resources Station of Dehgin (Hormozgan province) from November 2014 for three years. The three methods of seeding in farrow, pitting, and crescent catchment were studied in a randomized complete block design with three replications in SAS software. The results showed that there was a statistically significant difference between experimental structures, plant species used, and also the interaction of structure and species. A statistically significant difference was recorded for Helianthemum lippii and Taverniera cuneifolia at the level of 5%, for the crescent catchment structures, pitting, and contour-furrow at the level of 1%, and also for the interaction of structure and species at the level of 1%. The highest percentage of species establishment was in the crescent catchment structure with 27.1% and the lowest was related to the pitting structure with 3.2%. Investigation of the interaction of structure and species in the rate of species establishement in different structures showed that the highest percentage of establishement was related to Taverniera cuneifolia with 31.2% in the crescent-shaped structure, after that, the highest percentage of establishment was related to Helianthemum lippii with 22.9% in the same structure. The lowest establishment was related to the contour-furrow structure with 2.1% for Taverniera cuneifolia and pitting structure with 2.1% for Helianthemum lippii. Based on the results of the present study, it is suggested that to successfully implement rangeland cultivation projects with Lippii Helianthemum and Taverniera cuneifolia in similar climates of Hormozgan province, the mentioned species should be planted in crescent-shaped structures.
Mohammad Amin Soltanipour; Saeedeh Nateghi; Mahshid Souri; Nadia Kamali
Volume 26, Issue 4 , December 2019, , Pages 787-799
Abstract
This study was conducted to demonstrate the growth behavior of Aeluropus lagopoides, Desmostachya bipinnata, Halocnemum strobilaceum, Alhagi graecorum and Atriplex leucoclada in the Zaminsang rangelands of Hormozgan provinceduring 2007 to 2010. Determination of the production ...
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This study was conducted to demonstrate the growth behavior of Aeluropus lagopoides, Desmostachya bipinnata, Halocnemum strobilaceum, Alhagi graecorum and Atriplex leucoclada in the Zaminsang rangelands of Hormozgan provinceduring 2007 to 2010. Determination of the production and consumption were done by the individuals in medium size. In each year, five medium individual of plant were selected for all months of growing and grazing season in exclosure area for measuring the production and the same number in the grazing range considered for measuring the production residue and from difference between them, the consumption was identified. Results indicated that different years and months had significant effect on production and consumption of the study species (p<0.05). According to the obtained data from the experiment indicated that, the average production of five perennials species was 125.8 kg dry forage per hectare. The highest production rate was obtained from Halocnemum strobilaceum and Desmostachya bipinnata in amount of 52.9% and 22.9% of total forage production, respectively. The average consumption of the species was 32.4 kg dry forage per hectare. The highest consumption rate was dedicated to Halocnemum strobilaceum and Alhagi graecorum, with amount of 41.8% and 30.1% of total forage consumption, respectively. The highest production rate was obtained from 2008 with 162.7 kg dry forage per hectare which was 1.8 times higher than low-production in 2009. The highest consumption rate for all species was 35.7 kg dry forage per hectare in 2009. The highest forage production and consumption were obtained in May in all species during the years.
mohammad Amin Soltanipour; Saeedeh Nateghi; Ali Ehsani
Volume 26, Issue 2 , July 2019, , Pages 271-281
Abstract
To determine the phenological stages and plant height of three important range species Aeluropus lagopoides, Desmostachya bipinnata and Halocnemum strobilaceum, this investigation was carried out for four years starting in 2007 in Zaminsang Rangelands of Hormozgan province. In this study, the information ...
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To determine the phenological stages and plant height of three important range species Aeluropus lagopoides, Desmostachya bipinnata and Halocnemum strobilaceum, this investigation was carried out for four years starting in 2007 in Zaminsang Rangelands of Hormozgan province. In this study, the information about the phenology and plant height for 10 individuals of each species in 10-day intervals was measured and recorded. The results showed that phenological stages of three species were different in the study years, so that plant growth started 2-3 weeks earlier in wet years and later in dry years, while the duration of vegetative and reproductive activity of plants was different. The results showed that vegetative growth started with cooling of air and the onset of rainfall. The growth period of A. lagopoides, D. bipinnata and H. strobilaceum was 6, 6.5, and 10 months, respectively. The vegetative growth of A. lagopoides started from 22 December, whereas the vegetative growth of D. bipinnata and H. strobilaceum started from 20 February. The flowering stage started from April, June, and September, and the seeding stage from 22 April, 22 July, and 15 October, respectively. The dormancy period of plants started in 22 May, 1 September, and 22 December, respectively. Since Aeluropus lagopoides is a palatable and dominant species in the Zaminsang region, the time of arrival and departure of livestock is recommended to be late November to late May.
Mohammadamin Soltanipour; Saeedeh Nateghi; Mohammad Fayaz
Volume 25, Issue 3 , November 2018, , Pages 612-626
Abstract
This research was aimed to determine the grazing behavior of Tali goat, as the dominant livestock, in the Zaminsang rangelands of Hormozgan province for four years starting from 2006. The indices examined in this study included the time of livestock entry to and exit from rangelands, the daily distance ...
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This research was aimed to determine the grazing behavior of Tali goat, as the dominant livestock, in the Zaminsang rangelands of Hormozgan province for four years starting from 2006. The indices examined in this study included the time of livestock entry to and exit from rangelands, the daily distance moved by the livestock, the livestock path, maximum and average livestock speed, and the time spent for livestock rest, movement and grazing. To determine the mentioned indices, the GARMIN GPS was used and closed with a special belt behind a three-year-old goat. The GPS was activated when the livestock exited the barn. Then, at the end of the day, its data were extracted in the Ilwis software. The path of livestock movement was determined by the shepherds. According to the results, significant differences were found for the average speed of livestock in the fourth year, and the movement time and rest time in the fourth and fifth months, while no significant difference was found for other behavioral characteristics of livestock grazing. Moreover, during the study period, 31 to 39 percent of the time the livestock moved in the rangeland was dedicated to grazing.