S461 : Investigating the vulnerability of aquifer in Sabzevar plain using the Drastic model
Thesis > Central Library of Shahrood University > Agricultural Engineering > MSc > 2019
Authors:
Salimeh Eshaghi Il beigi [Author], zahra Ganji[Supervisor], Vajiheh Dorostkar[Supervisor], Mohamad Hadi Movahednejad[Advisor], Majid Otari [Advisor]
Abstarct: The study area aquifer sabzevar of the Khorasan razavi. To assess the vulnerability of the aquifer, drastic model, the information requirements of the Organization of the regional water supplier. In order to determine the different laxyers, such as the drastic model, depth laxyer, Net recharge laxyer, soil laxyer, topography laxyer, Aquifer media, Impact of vadose zone media laxyer, Hydraulic Conductivity laxyer of the aquifer of the area mapped and ranked. The depth map showed, the center of the plain with the depth level is low, high vulnerability and the highest ranking will get. The map showed a laxyer of pure nutrition ranking, Northern and central regions have a higher ranking and plain vulnerable.The result is the highest ranking will get. The perimeter of the aquifer in the area of fine-grained sediments in the clay and sand. Ranked the environment map aquifer indicated, areas with fine-grained sediments have less vulnerability and lowest ranking will get. The total ratio of coarse grain material because of the plain formed by the higher rank assigned to itself and high vulnerability. The map showed the soil environment ranking, fine-grained areas the lowest ranking and more coarse than the rating areas. The Central and Eastern regions, Plains vulnerable to red. Topography laxyer plain Center, showed the lowest slope and into the blue. The areas with a low slope of the highest rank. Because an effective role in the vulnerability of the aquifer. On this basis, the Central Plains areas of the highest rank and badge being vulnerable. Ranked unsaturated zone map, areas of fine-grained, the lowest ranking assigns to itself. Given that most of the area is a top rated, so vulnerabilities baxsed on unsaturated zone laxyer in that area is high. The value of hydraulic conductivity in the North West area. The hydraulic conductivity is high in most areas. This would show more vulnerable areas. The areas that have the highest hydraulic conductivity has the highest rank, and more damage. Drawing vulnerability of drastic map showed, suffering a number of drastic model in the study area between 81 to 159. Classified drastic map showed, the amount of vulnerabilities in the area of vulnerability is characterized by low to high vulnerability. The vulnerability index, in the Centre of the High Plains. Reviews of solids dissolved in water, soluble solids in the study area were higher than World Health Organization standards. High TDS in Neogene sediments outcrop area attributed to plain. Water soluble solids overlap with the map of drastic, in the Centre of the plain of areas with high vulnerability, water soluble solids concentration is also high drastic with electrical conductivity map overlays indicated, in the Centre of the plain, that is, the vulnerability of high electrical conductivity of high concentration. This would also be the accuracy of the poll to approve the drastic model. The map showed WQI and drastic model overlap, The Central lowland areas that are baxsed on the drastic model is vulnerable, drinking water quality index WQI baxsed too weak to be inappropriate. Drinking water quality index showed GQI, calcium, chlorine, magnesium, sodium and TDS in water from the eastern part of the plain of higher concentration to the Centre. This will go down in the water above the level of quality. Map of drastic and sodium adsorption ratio model overlap, water quality in terms of agriculture than in areas with high vulnerability.
Keywords:
#Drastic model #GQI index #WQI index #aquifer sabzevar Link
Keeping place: Central Library of Shahrood University
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