Evaluation of hydrogeochemistry of alluvial aquifer in Dasht Goor

Authors

1 Department of Geology, Islamic Azad University, Estahban Branch, Estahban, Iran

2 Senior expert in water resources, Bushehr province regional water organization

Abstract

Dasht Gour is located in the northeast of Bushehr province and the study area of Dalki-Shabankare. In the past, this plain had good potential in quantity and quality, and now, with 303 unauthorized agricultural wells, it is considered one of the prohibited and critical plains. Through the selective monitoring network with 26 exploitation wells and the analysis of underground water samples in a period of 9 years (1388-1397), the hydrogeochemical characteristics of the Dasht Gour aquifer were analyzed. The analysis of hydrogeochemical diagrams and maps in the Arc GIS environment showed that in the studied aquifer, the dominant anion is sulfate, and the dominant cation is calcium. Total dissolved solids have increased to 355 mg during the nine years. The waters are mainly calcium sulfate, and salinity has increased by 1221 units with an annual average of 136 microsiemens/cm. The influencing factor and water quality control is the presence of the Aghajari formations and Bakhtiari conglomerate.

Keywords



Articles in Press, Accepted Manuscript
Available Online from 18 October 2023
  • Receive Date: 16 September 2023
  • Revise Date: 07 October 2023
  • Accept Date: 18 October 2023