The Combined Role of GIS, RS and Geoelectric in Determining the Susceptible Areas of Underground Dam Construction (Case Study: Pashueeyeh Basin of Kerman Province)

Document Type : Research Article

Authors

• N. Haj Seyed Ali Khani ¹
• H. Saeediyan ²

¹ Master of Science in Department of Soil and Water Conservation and Watershed Management, Agricultural Research and Natural Resources Center, Kerman Province, Agricultural Research, Education and Development Organization, Kerman, Iran.

² Assistant Professor, Department of Soil Conservation and Watershed Management Research, Kerman Agricultural and Natural Resource Research Center, Agricultural Research, Education and Extension Organization, Kerman, Iran. [e-mail]

https://doi.org/10.22067/jsw.2022.79034.1207

Abstract

Introduction
 Control and extraction of water using underground dams in arid regions has been of interest to researchers since not too long ago. Construction of underground dams does not require surface water storage and does not change land use. Therefore, they are environmentally suitable. The lack of groundwater resources on the one hand and indiscriminate and unscientific harvesting on the other hand, and the increasing needs associated with population growth, will cause scientific communities to revise and provide appropriate solutions for managing the exploitation of groundwater aquifers and creating new resources or renewable reservoirs in the country. Nowadays, in many countries of the world, the construction of underground dams has been considered as a new method for utilization of water resources. Several criteria such as physical, socio-economic and hydrological criteria are involved in the location of underground dams. Underground dams have wide applications for feeding groundwater aquifers and water storage, as well as preventing soil erosion and increasing groundwater quality. Due to the limitation of water resources and the lack of equality of the world's share in exploiting this divine gift, it is anticipated that most countries will soon suffer from severe water shortages, so that it is firmly believed that if this problem continues, many international conflicts will be over water for centuries to come. One of the strategies to deal with water shortage is to extract water from new resources, especially the discovery of underground, which can be done by constructing different underground dams and with the knowledge of the world.
Materials and Methods
 In this study, to determine the susceptible areas of underground dam construction using field visits was selected Pashueeyeh watershed. To communicate between effective criteria and save time and money, a method based on combining maps in GIS and RS system has been used. In the first step, investigations were carried out to identify suitable areas for the construction of underground dam. For this purpose, data extracted from basic maps, findings in this field and expert opinions were used.
Results and Discussion
 Therefore, a combination of new sciences such as GIS, RS and geoelectrics was used in determining the susceptible areas of underground dam construction, which in turn is a valuable research that provides the situation for creating other combined researches in different climates of the country, stating that a combination of different sciences in addition to the sciences mentioned in this research can increase the quality of studies related to underground dams and even large groundwater discovery are effective and in case of mild to severe droughts can be a way to solve the country's problems in the field of using quality water and lower extraction costs. The results showed that Pashueeyeh watershed is not a susceptible place for underground dam construction in Lut desert region for water storage. According to the results of geoelectric sodages and field evidences, the bedrock at the proposed location has dense clay that have many salts and the depth of impact on the bedrock varies between at least 2.6 meters and a maximum of 7 meters. On the bedrock is a river alluvial layer consisting of two wet and dry horizons. Also, the river alluvial layer consists of sequences of layers with different aggregation and permeability. The results show that the electrical resistance of different layers rarely reaches more than 30 ohms per meter; this is due to fine grain texture and high density of sediments as well as water salinity.
Conclusion
 One of the strategies to deal with water shortage is to extract water from new resources, especially the discovery of underground aqueous, which can be done by constructing different underground dams and with the new knowledge of the world. Underground dams in the world are expanding in different climates, especially in arid and semi-arid regions, which are likely to become one of the most important sources of water extraction in the future years, especially if they are associated with new technologies and combination of GIS, RS and geoelectric. the results showed that the combined role of GIS, RS and geoelectric in determining the susceptible areas of underground dam construction makes the accuracy of proper site construction of underground dams and even the discovery of underground aquifers much higher and achieved valuable results.

Keywords

• Geographical system
• Pashueeyeh watershed
• Sondage
• Underground dam

20.1001.1.20084757.1401.36.6.6.8

Main Subjects

• Irrigation

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