Open Access Research Paper Views (782) Water Quality Evaluation of Karkheh River by Considering Irrigation and Drinking Consumption Farhang Azarang, Hossein Sedghi J. Biodiv. & Environ. Sci. 8(1), 225-235, January 2016. Keywords: FAO Standard, Karkheh river, Schoeller Diagram, Sodium Adsorption Ratio, Wilcox Diagram Details