Abstract:

In this study, in the Dalaman-Muğla district, which is defined as a test area, the aim is to determine the electrical conductivity (EC) of the irrigation waters used for the purposes of irrigation, maping their spatial distribution by geo-statistic methods and revealing their changes. For this purpose, we have taken samples of irrigation water from three different locations and three different periods where agricultural production is intensely done in the Dalaman district, in which samples have been analysed pH, EC, anion (CO3-2, HCO3-1, Cl-1 and SO4-2) and kation (Ca+2, Mg+2, Na+1 and K+1). In geostatistic analyses, the EC data obtained from sampling points were analyzed with identifying statistics, the semi-variogram analysis and the Ordinary Kriging methods were applied. In this context, the EC models of the region have been drawn out and accuracy analyses have been made and models have been compared. In the study, geo-statistic analyses were conducted by calculating the spatial (spatial) locations and distances between the waters where the samples were taken in order to extract the EC distribution maps, and the analysis results determined the distances and differences between the regions with very low error rates. The research has found that the electrical conductivity of the irrigation waters increases as they move from north to south depending on the topography of the land.

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