Spatial distribution verification of ground water (case study: Dezful plain)

Subject Areas : watere sciences

Mohammadhosin Esvandzibaei ¹ , hossein eslami ²

1 - water engineering department, water science faculty, Islamic azad university, shoushtar branch, shoushtar
2 - water engineering department, water science faculty, Islamic azad university, shoushtar branch, shoushtar

Received: 2018-07-04 Accepted : 2018-08-12 Published : 2018-05-22

Keywords: interpolation, Kriging, Keywords: Nitrate, Spatial variations,

Abstract :

Groundwater quality assessment and site monitoring of these waters is very important for nitrate pollution. In this regard, the spatial variations of groundwater nitrate were investigated using interpolation methods and mapping of these changes. Made This cross-sectional descriptive-analytic study was conducted on drinking water sources in villages in Dezful. For this purpose, 20 drinking water wells were used according to the standard method and 80 samples for 4 season were analyzed. The results showed that the circle Kriging method with less error value than inverse distance weighting, spline and nearest neighborhood methods can perform the optimal zoning for the plain. The summer season has the lowest amount of nitrate and winter. Finally, by investigating the zoning map, it was determined that the eastern and central western regions had the highest amount of nitrate and the north of the plain had a desirable nitrate status.