1
Graduate Student, Department of Soil, University of Shahrekord
2
Assistant Professor, Department of Soil, University of Shahrekord
Abstract
Groundwater in many parts of the world is the main source of drinking water. The Shahrekord aquifer (Iran) supplies the drinking water to the residents of Shahrekord. The aim of this research was to geostatistically analyze and map nitrate and phosphate concentrations in this aquifer. For this purpose, 100 agricultural wells, located in the Shahrekord plain, were sampled on three different dates during 2010 and water samples were analyzed for nitrate and phosphate. The results presented here are based on the average concentrations of the three samples. The mean concentrations of nitrate and phosphate were 25.9 and 0.09 mg/L, respectively. Comparison shows that these mean concentrations have increased since 2007. The spatial variability of nitrate and phosphate were better described by spherical semivariogram models. Examination of maps shows that the southeast of the aquifer had the highest concentrations of both nitrate and phosphate. In some wells, located in the southern part of the aquifer, the concentration of nitrate sometimes exceeded the permissible level of 45 mg/L. This may be attributed to the presence of the Shahrekord municipal wastewater treatment plant, the shallower water table in this part, and also due to the inflow of groundwater.
Fathihafshejani, E., & Beygiharchegani, H. (2012). Spatial Variability of Nitrate and Phosphate and Their Mapping in the Shahrekord
Groundwater. Irrigation Sciences and Engineering, 36(1), 103-112.
MLA
Elham Fathihafshejani; Habiballah Beygiharchegani. "Spatial Variability of Nitrate and Phosphate and Their Mapping in the Shahrekord
Groundwater". Irrigation Sciences and Engineering, 36, 1, 2012, 103-112.
HARVARD
Fathihafshejani, E., Beygiharchegani, H. (2012). 'Spatial Variability of Nitrate and Phosphate and Their Mapping in the Shahrekord
Groundwater', Irrigation Sciences and Engineering, 36(1), pp. 103-112.
VANCOUVER
Fathihafshejani, E., Beygiharchegani, H. Spatial Variability of Nitrate and Phosphate and Their Mapping in the Shahrekord
Groundwater. Irrigation Sciences and Engineering, 2012; 36(1): 103-112.
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