Abstract
To evaluate the effects of irrigation with saline water of Bahmanshir River in southwestern Iran, 11 water samples from the river in two flow and ebb periods and 22 soil samples from two depths of 0–20 and 20–40 cm were taken. The irrigation suitability indexes and Wilcox, USSL, and Doneen charts were used to determine the quality of agricultural water. The soil texture, SAR, EC, and pH parameters were used to determine soil quality. Important factors on the water quality are flow and ebb, wastewater discharge, hydrogeochemical and climatic processes. Based on the most studied indexes, water quality is classified as permissible to unsuitable. The Wilcox and USSL charts indicate that water is unsuitable for agricultural use. The Doneen chart showed that water had no effect on soil permeability. The region’s soils are mainly classified as saline-sodic and saline soils. The soil salinity depends irrigating with saline water, inappropriate irrigation approaches, and geographical and climatic conditions.
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