Comparison between the results of applications of the Canadian and Bhargava methods for irrigation water quality index at multi- locations in Tigris River. (A Case Study of Al-amarah Region)

Shakir Hadi, Nabaa

	Comparison between the results of applications of the Canadian and Bhargava methods for irrigation water quality index at multi- locations in Tigris River. (A Case Study of Al-amarah Region)
journal of kerbala university
Article 1, Volume 8, Issue 2, 2012, Pages 187-196 PDF (0 K)
Author
Nabaa Shakir Hadi
Abstract
To understand the Iraqi water needs for different uses, it is important to study the quality of the water parallel with the quantity. In this research, two national methods are adopted to evaluate and judge the suitability of Tigris River (in Al-amarah region) for irrigation use. These methods include the water quality index (WQI) of the Canadian and Bhargava. These indices have been applied to assess the suitability of water for a variety of uses and reflects the status of water quality in lakes, streams, rivers, and reservoirs. The concept of WQIs is based on a comparison of the concentration of contaminants with the respective environmental standards. Tigris River is one of the two main rivers passing through Iraqi land, the uses of its water are different and its use for irrigation depends on many environmental parameters ( CL-1, Ca+2, Mg+2, TDS, PH, EC, SO4-2 and SAR ). The researcher studied the quality of this river for irrigation use during year 2011. Seven locations were been taken on the Tigris river in Al-amarah Region in Iraq. The main results showed that there is no difference between the two techniques at significance level (0.01) and the quality of the river inter in Al-amarah Region classified as GOOD and FAIR according to Bhargava and the Canadian method respectively.

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