Ali Heshmatpour; Seyed Javad Sajjadi; Yusuf Mohammadian
Abstract
Low rainfall with improper temporal and spatial distribution is a significant problem in arid and semi-arid areas. Due to the lack of water resources and the increasing water demand, access to new water resources is necessary. Rainwater collection is one of the most prominent methods of rainwater exploitation ...
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Low rainfall with improper temporal and spatial distribution is a significant problem in arid and semi-arid areas. Due to the lack of water resources and the increasing water demand, access to new water resources is necessary. Rainwater collection is one of the most prominent methods of rainwater exploitation management to deal with water shortage which is developing rapidly in many areas. Considering the diversity and breadth of rainwater collection methods, serious attention should be paid in choosing the influencing factors and the type of criteria combination method. In this article, in order to determine the places prone to the construction of rain catchment surfaces for livestock drinking, first the effective factors were determined with the studies conducted and the characteristics of the area.Seven factors were considered, including slope, land use, soil depth, distance from fault and waterway, proximity to livestock farming, and prevailing wind direction.The factors were ranked using the fuzzy logic technique.This involved dividing them into nine separate parts. A geographic information system was then used to overlap these layers. The results of this overlap were classified into five classes: poor, average, relatively good, good, and very good.The rainwater collection areas for each class were 44.01, 53.94, 30.31, 30.48 and 12.51 km², respectively. Also,Based on the results of fuzzy logic, the south and southeast part of the region had the first priority for the construction of rain catchment surfaces.Therefore, it can be used to collect rainwater and store it for future use.The findings of this research work will help policy makers and decision makers to implement different rainwater collection structures in the study area to overcome water shortage problems
javad Motamedi(torkan); Hossein Arzani; morteza mofidi; esmaeil sheidaye karkaj; sahar babayi
Abstract
The role of shepherds in maintaining, managing and distributing livestock in rangelands is very important. Flock guidance plays a major role in the distribution of grazing and livestock performance in rangelands. Therefore, it is necessary to evaluate the existing spatial system and it is clear to what ...
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The role of shepherds in maintaining, managing and distributing livestock in rangelands is very important. Flock guidance plays a major role in the distribution of grazing and livestock performance in rangelands. Therefore, it is necessary to evaluate the existing spatial system and it is clear to what extent livestock are given in appropriate places according to ecological criteria and indices. The present study was conducted to evaluate the role of shepherds in herding and distribution of livestock (sheep) and its adaptation to rangeland suitability map. Record of movement of livestock in different months of the grazing season by GPS and its adaptation to rangeland suitability map which is led by shepherds in areas where the limitations of forage production and sometimes, the sensitivity of soil to erosion, have little value for why. Therefore, the hypothesis of the study that shepherd does not play an effective role in the distribution of livestock on the basis of rangeland merit is confirmed and given that shepherds have given the animals in places where they have little merit for why, it is concluded that the spatial system in the rangelands of the region is not efficient. Therefore, the use of new technologies such as GPS and electrical fences along with native knowledge in order to properly control the herd and reduce the burden of livestock grazing in the areas that are not based on ecological criteria and indicators, do not have the necessary merit, is suggested.
