Qualitative Assessment of Ardabil Plain Groundwater Wells

Subject Areas :

ابراهیم Fatei ¹ , سمیه Nedaei-Gilarlo ² , نسیم Seedsadegian ³ , S.T Seedsafavian ⁴ , R. Sadeghi ⁵

1 - استادیار، گروه مهندسی محیط زیست، دانشکده علوم، دانشگاه آزاد اسلامی، واحد اردبیل
2 - گروه نقشه برداری، دانشگاه آزاد اسلامی واحد گرمی
3 - استادیار، گروه مهندسی محیط زیست، دانشکده علوم، دانشگاه آزاد اسلامی، واحد اردبیل
4 - دانشگاه آزاد اسلامی واحد اردبیل، باشگاه پژوهشگران جوان، اردبیل، ایران
5 - دانشجوی دکتری تکتونیک، گروه زمین شناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات

Received: 2016-09-07 Accepted : 2016-09-07 Published : 2012-12-21

Keywords: Groundwater, Physicochemical, Agriculture use, Qualitative classification, Ardabil Plain,

Abstract :

Underground water resources of Ardabil plain is used for drinking, industry and agriculture activities in the studyarea. In order to water quality assessment of Ardabil plain wells to use in agricultural purposes water quality of81 deep wells that are utilized for agricultural irrigation was evaluated. In this study electrical conductivity,sodium, calcium, magnesium, potassium, sulfate, chloride, bicarbonate and total hardness were measured.Studied wells were classified based on the percentage of sodium, EC and sodium adsorption ratio. By means ofPiper Diagram most of Ardabil Plain water is as carbonate type; in these wells are predominant sodium andpotassium. Wilcox diagram showed that 45 % of samples(35 sample) are in middle-saline class, 43.5 % ofsamples(34 sample) in saline class, 11.5 % of samples(9 sample) in very saline class Overall, the risk of salinityis moderate to high and alkalinity risk is lower. These waters are relatively suitable for agricultural uses.