Sedigheh Zarekia; Naser Baghestani Meybodi; Alibeman Mirjalili; Mohammadreza Ahmadi Roknabadi
Volume 28, Issue 1 , April 2021, , Pages 69-81
Abstract
To investigate the effect of biomechanical methods on increasing the vegetation in arid areas, three regions (Ashkezar, Ghahar, and Chahmatk of Ardakan) in Yazd province were selected. Statistical sites were determined within the scope of rainfall storage operations and outside it (control), and at the ...
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To investigate the effect of biomechanical methods on increasing the vegetation in arid areas, three regions (Ashkezar, Ghahar, and Chahmatk of Ardakan) in Yazd province were selected. Statistical sites were determined within the scope of rainfall storage operations and outside it (control), and at the end of the growing season (May 2018), a survey was conducted. To do this, in each area, 100 plots of 9 square meters (3*3) at a distance of 12 meters from each other and along five transects of 300 meters, which were considered in parallel and at a distance of 100 meters from each other were placed. In each plot, canopy cover percentage and density of different species were measured. Data were compared with a t-test. The results indicate an increase in the canopy within the furrow and crescent. The canopy average in the Ashkezar and Chahmatk of Ardakan rangelands in the rain storage region increased from 2 to 3% compared to the control area. Also, an increase in the density of different species was observed in the precipitation storage area. However, sowing has been done only in the year of rainfall storage. In general, due to vegetation status and plant density by species segregation, performing remedial storage operations along with seeding using Artemisia sieberi and Salsola tomentosa species can be successful for desert rangelands with less than 100 mm of rainfall.
Mohammad taghi Zare; Mohammad Fayaz; sedighe zarekia; Naser Baghestani Meybodi; Mohammad Abolghasemi
Volume 27, Issue 1 , April 2020, , Pages 24-35
Abstract
Rainfall storage with plant species planting is used for rehabilitation and improvement of rangelands, especially in arid areas. In this study the effect of rainfall storage treatments furrow, pitting and crescent pond on the establishment of Ferula tabasensis in Kalmand Bahadoran area of Yazd province ...
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Rainfall storage with plant species planting is used for rehabilitation and improvement of rangelands, especially in arid areas. In this study the effect of rainfall storage treatments furrow, pitting and crescent pond on the establishment of Ferula tabasensis in Kalmand Bahadoran area of Yazd province was evaluated. This area is one of the habitats of the species studied. Seeds were planted at two season, early fall as autumn sowing and late winter as spring sowing. The research was a split plot design, based on randomized complete blocks with three replications. The main plot was planting time (spring and autumn) and sub plot was planting method (farrow, pitting and crescent pond). The seeds were planted in 2013 and 2014. The results showed that seed emergence rate in autumn were significantly higher than spring planting. Among the planting methods, the impact of the crescent pond method was slightly more than the other two methods. In general, planting methods caused more than 50% seed emergence. Although some of these seedlings were destroyed for various reasons, however, the establishment of about 30% of seedlings shows that the methods of rainwater harvesting in the establishment of cultivated plants have had a positive effect.
Naser Baghestani Meybodi; Hosein Arzani; Mohammad Taghi Zare; Jalal Abdollahi
Volume 11, Issue 2 , August 2019, , Pages 137-162
Ali Beman Mirjalili; Ghodratollah Heydari; Naser Baghestani Meybodi; Shatagh Rastegar
Volume 26, Issue 1 , June 2019, , Pages 89-102
Abstract
This study was conducted in the rural allotments of arid and desert rangelands of Nodoushan, Yazd. Nine ecologically similar allotments were selected in the area and one herd was selected in each of the allotments.The study livestock were Nodoushan pure goats with an average number ...
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This study was conducted in the rural allotments of arid and desert rangelands of Nodoushan, Yazd. Nine ecologically similar allotments were selected in the area and one herd was selected in each of the allotments.The study livestock were Nodoushan pure goats with an average number of 230 goats in each herd. The objective of this study was to determine the income, cost and benefits of the Nodoushan goat. The results showed that the highest present expenditures were related to the manual feeding of livestock and shepherd wages. The highest income was related to livestock, milk and yogurt sales, respectively. In all nine allotments, the costs were higher than the incomes, leading to a negative net income in each of the allotments. Valuation using present net value based on 15,18 and 20 percent discount rates in 2015,2016 and 2017 showed that net present value and benefit-cost ratio were less than zero and one, respectively, in all the three years. Thus, traditional animal husbandry in the study areas is not economically profitable.
naser baghestani; mohamad taghi zare; kazem dashtakian; mohamadreza ahmadi
Volume 22, Issue 4 , March 2015, , Pages 778-786
Abstract
Proper distribution of water resources in rangelands causes uniform grazing and optimal use of rangeland. Knowledge of the present status of water resources in rangeland is important to achieve this goal. For this purpose, the drinking water resources for livestock in the steppe rangelands of Nodoushan, ...
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Proper distribution of water resources in rangelands causes uniform grazing and optimal use of rangeland. Knowledge of the present status of water resources in rangeland is important to achieve this goal. For this purpose, the drinking water resources for livestock in the steppe rangelands of Nodoushan, Yazd Province with an area of 114836 hectares were studied in 2013. During the field visits, the location of water resources was determined with GPS device. The base maps of available wells-springs and water reservoirs were produced in ArcGIS 9.3 software using these data. Then, the maps of grazing territory within the wells-springs and water reservoirs were produced. The areas which were not suitable for grazing, due to the water resources limitations, were determined by matching these two maps. According to the results, the area of available springs-wells and water reservoirs was calculated to be 75692 ha and 65259 ha, respectively. However, an area equal to 16703 ha of the study area is located far from water resources that is not currently available for grazing. In the study area, 33 water reserviors have been already established and 13 others are still needed to cover the whole are of rangeland for livestock grazing. Whereas, by a proper site selection, 20 water reserviors would be enough to cover the whole area and it should be taken into account for the development of water resources in rangelands.
Mohammad Abolghasemiy; Amrali Shahmoradi; Naser Baghestani; Sadegheh Zarekia
Volume 16, Issue 2 , December 2009, , Pages 254-261
Abstract
Recognition of the autecology of plants and understanding their importance in soil protection, as well as forage production for livestock, is a proper strategy for management, conservation, and development of renewable natural resources, specially vegetation. This investigation was carried ...
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Recognition of the autecology of plants and understanding their importance in soil protection, as well as forage production for livestock, is a proper strategy for management, conservation, and development of renewable natural resources, specially vegetation. This investigation was carried out on autecology of Stipagrostis pennata in Yazd province. For this plant, ecological characteristics such as geographic distribution, climatic properties, topography, and soil were studied. Also phenology and root system of the plant were examined. For this purpose , three study sites of Mansoorieh (in Tabas area), Masjed-e-shokr (beside Yazd-Tabas high way), and Bafgh were determined. The results showed that Stipagrostis pennata is a psammophyte plant with standing stems and branches. This plant grows in low-height sand dunes and sandy hills. Elevation range for areas in which this plant grows is 700-1600 meters above sea level. Measure of soil acidity (pH) is 8.25-8.53 and electrical conductivity (EC) is 0.48 to 1.2 ds. This species starts its vegetative growth at the end of February and flowers in early May. Its seeds ripen in mid June. During summer and autumn, the plant is in dormancy stage. Due to high aerial organs, Stipagrostis pennata has a good resistance against sandy storms and winds. So it is highly recommended for mobile sand dune stabilization and control of soil erosion in desert areas. It also produces a fairly good amount of forage for livestock and wildlife.
Naser Baghestani Maybodi; Mohammad taghi Zare; Mohammad Abolghasemi
Volume 14, Issue 4 , February 2008, , Pages 478-489
Abstract
Wilted and dried up stands of haloxylon aphyllumspecies in afforested areas of Yazd has allways been a focal point of natural resources experts. Using various pruning treatments, the effect of pruning on the wideness of canopy cover and vigor of 12-year-old semi-trees of haloxylon aphyllumhad been evaluated ...
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Wilted and dried up stands of haloxylon aphyllumspecies in afforested areas of Yazd has allways been a focal point of natural resources experts. Using various pruning treatments, the effect of pruning on the wideness of canopy cover and vigor of 12-year-old semi-trees of haloxylon aphyllumhad been evaluated formerly. That study had been conducted in two different sections of the forest in the winter of years 1994. One section had shown a tree-density of 125 semi-trees per hectare, and the other had represented a tree-density of 250 semi-trees per hectare. The treatments included cutting at different heights of 70, 35, 10 cm and also no cutting (control). The results of that previous six-year study (1994-2000) showed that pruning increased vigority and regrowth of plants treated with different levels of pruning. The 35-cm pruning treatment was preferred over other treatments. At the end of growing season of year 2005, eleven years after pruning treatments, the same trees were evaluated for the second time. Results of the new study (in 2005) showed that while non-pruning (control) 23-year-old semi-trees are wilted and almost dried up, the semi-trees with pruning are vigorous and healthy. In terms of canopy cover and height, no significant difference was found between trees with different pruning treatment in the 5 years of 2000-2005. There was a significant reduction in the canopy cover and height of non-pruning (control) semi-trees (p<0.05). For the semi-trees which had been cut at a height of 35 cm, the diameter of canopy and the height were 262 and 164 cm, respectively. This semi-trees showed a good resistance against movement of sands and sand dunes.
Aman Rahbar; Ali Mir jalili; Naser Baghestani Meybodi
Volume 14, Issue 4 , February 2008, , Pages 579-588
Abstract
Knowing forage quality is necessary for assigning grazing capacity in range management program. For this aim, forage quality of two dominant range plants, Artemisia aucheri, and Peteropyron aucheri were studied in water spreading area of Heart station in Yazd province. Plant samples taken for two subsequent ...
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Knowing forage quality is necessary for assigning grazing capacity in range management program. For this aim, forage quality of two dominant range plants, Artemisia aucheri, and Peteropyron aucheri were studied in water spreading area of Heart station in Yazd province. Plant samples taken for two subsequent years from water spreading and control plots. Plant samples analyzed in laboratory and elements such as P, Ca, Mg, K, Na, Fiber, Fat and Proteins were measured. Statistical analysis indicated that in two years of study period, some elements has increased in water spreading plots (p<0.05), but, acceptable changes in forage quality of the two specie can not be reported.