Document Type : Research Paper

Authors

• Saeed Barkhori ¹
• Rasoul Mahdavi ²
• Gholamreza Zehtabian ³
• Hamid Gholami ⁴

¹ Ph. D. student, Faculty of Agriculture and Natural Resources, University of Hormozgan, Bandarabbas, Iran

² Associate Professor, Faculty of Agriculture and Natural Resources, University of Hormozgan, Bandarabbas, Iran

³ Professor, Department of Reclamation of Arid and Mountainous Regions, Faculty of Natural Resources, University of Tehran,Iran

⁴ Assistant Professor, Faculty of Agriculture and Natural Resources, University of Hormozgan, Bandarabbas, Iran

Abstract

     The aim of this study was to investigate the temporal and spatial changes trend of groundwater quality for drinking purposes in Jiroft plain. The role of land use and geological formations in the groundwater quality was also investigated. In this study, the parameters of electrical conductivity, sodium adsorption ratio, pH, calcium, chlorine, magnesium, sodium, and sulfate were used and the zoning of qualitative data was done by the geostatistical method of Kriging in ArcGIS9.3 software; then, the classification of the region was done using Schoeller diagram. Results showed that in 2001, southern parts of the study area had a lower quality of groundwater but in 2014, northern parts had a lower quality. According to the results, the groundwater quality decreased overtime and the decreasing trend spread from the south to the center and the north of the region. Also, the land use map showed a low quality of groundwater in agricultural lands. The geology map showed a low quality of groundwater in central and southern parts. In general, it can be concluded that the water quality of the study area for drinking is decreased over time and influenced by land use and geological formations; thus, to improve the quality of groundwater resources the role of human factors (land use and agricultural activities) need be taken into account.
 

Keywords

• Drinking
• Jiroft Plain
• Water quality
• land use
• Geology formations