TA676 : Assessment of Aquifer Subsidence Due to Excessive groundwater Withdrawal (Case Study: Borkhar Aquifer in Esfahan Province of Iran)
Thesis > Central Library of Shahrood University > Civil & Architectural Engineering > MSc > 2021
Authors:
[Author], Ramezan Vagheei[Supervisor]
Abstarct: Iran, due to low rainfall and unsuitable spatial distribution, is sometimes considered as one of the driest and semi-arid countries in the world and is one of the driest countries in the world. On the other hand, due to population growth and the consequent expansion of industry, agriculture and urbanization, water demand is increasing day by day. The reasons stated increase the need for proper management of available surface and groundwater resources. Due to the limited surface water resources in our country, especially in the central plateau, the use of groundwater resources increased so that most of the groundwater resources were used without study and consequences such as land subsidence and plains Created. Improper extraction of groundwater resources in Isfahan province, in recent years, has caused irreparable damage to the province and its plains are in danger of subsidence. Lower water levels of groundwater resources cause water quality decline and salinization and pose a threat to the region's agriculture. In this study, the long-term evaluation of Isfahan Borkhar plain subsidence due to uncontrolled abstraction of groundwater using satellite images by object-oriented method and hydrological data and the application of management models including multi-criteria decision making technique, Delphi method and SWOT strategic technique were investigated.. From the results of this study, it is possible to prepare a subsidence assessment map in the studied plain and also to obtain the results of various management techniques such as AHP prioritization by sealing all effective wells with a ratio of 42.9 and irrigation with effluent with a ratio of 31.5 and feeding, respectively. Synthetic with effluent ratio of 25.6%, SWOT technique includes options such as using wastewater for urban use and not harvesting aquifers in neighboring cities and creating a culture and informing farmers about the strategy of continuous improvement and options such as realization Artificial feeding projects using effluents, construction of dams and water structures to maintain runoff and prohibit justification plans with high water requirements in the strategy of gradual change and the results of Delphi technique including the priority of irrigation with effluent and the option of sealing all wells Named the influencer.
Keywords:
#Keywords: Subsidence #Object Oriented #AHP #Delphi Method #SWOT #Borkhar Isfahan.   Keeping place: Central Library of Shahrood University
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