Investigating the sensitivity of geoelectric method in suitable locating of underground dams in desert areas (Case study: Samon Jahr watershed in Kerman province)

Document Type : Original Article

Authors

1 Master of Soil Conservation and Watershed Management Research Department, Kerman Agricultural and Natural Resources Research Center, Agricultural Education and Extension Research Organization, Kerman, Iran

2 Professor, Department of Soil Conservation and Watershed Management Research, Kerman Agricultural and Natural Resource Research Center, Agricultural Research, Education and Extension Organization, Kerman, Iran

3 Resistant Professor, Department of Soil Conservation and Watershed Management Research, Kerman Agricultural and Natural Resource Research Center, Agricultural Research, Education and Extension Organization, Kerman, Iran.

10.22125/iwe.2023.378942.1696

Abstract

Geoelectric harvesting was carried out in The Sammon-Jagr Strait in Kerman province in two stages and a total of 19 electric sondages with different distances were carried out in the area of the project. Then, the obtained data were processed using IPI2WIN software and finally the processed results were interpreted. After preparing geological, slope and land use maps of each region and combining them in ArcGIS software, using Boolean logic, areas that are geologically, slope and land use suitable for underground dam construction were identified in a hybrid map. The results showed that according to the results of geoelectric sondages and field evidences, the bet stone at the proposed option area has dense clay with many salts. And the depth of impact to the bet stone is measured at least 4.5 meters and a maximum of 17 meters. On the bed stone is a river alluvial layer which is divided into wet and dry horizons. Of course, due to horizontal changes in sedimentation of river bed sediments, river alluvial layers include sequences of layers with different aggregation and permeability that have limited expansion. According to the geoelectric data and topographic map of bed stone, the proposed sites are more suitable for the construction of underground dam in accordance with L6 and L8 sections.

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