WATER QUALITY ASSESSMENT FOR IRRIGATION CANALS Case Study in the Bingol, Turkey

The aim of this study was to determine the quality of the water used as irrigation water by the agricultural farmers in the city center of Bingol, to determine the physico-chemical properties of the water used in the region, to study the seasonal changes and to calculate of the irrigation water quality evaluation. Taking into account the seasonal fluctuations of the irrigation water sampling points (O, K, A), pH values 7.63-7.94, EC values 0.14-0.16 dS/m, Na values 0.27-0.32 me/L, K values 0.08 me/L, Ca values 0.75-0.81 me/L, Mg values 0.33-0.38 me/L, SO4 values 0.12-0.13 me/L, bicarbonate 3.16-3.36 me/L, and chlorine values between 0.51-0.55 me/L. Parameters such as SAR, KI, Na%, and PI were calculated to determine the suitability of the existing irrigation water quality in the study area. When the SAR values were examined, it was determined that they were between 0.36-0.42, RSC values were between 1.5-2.5, and IWQI values were between 77.33-78.42. As a result of the quality evaluations made at the irrigation water line located in the center of Bingol province, it was determined that there was no difference in the quality parameters when the seasonal changes in the long-term sampling for five years were taken into consideration.