Effect of Drought on the Water Quality and Quantity of Dez River

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AZISH S.; ASAREH A.; KHODADADI DEHKORDI D.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2019 | Volume:15 | Issue:2 Page(s): 306-318

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Information Journal Paper

Title

Effect of Drought on the Water Quality and Quantity of Dez River

Author(s)

AZISH S. | ASAREH A. | KHODADADI DEHKORDI D. | Issue Writer Certificate

Keywords

DroughtQ2

Dez RiverQ1

Mann-Kendall TestQ2

SPI indexQ1

Abstract

The aim of this study was the evaluation and analysis of Drought effects, through SPI index assessment, on the water quality and quantity of the Dez River. For determining the Drought, ten-year meteorological data (2005-2014) were achieved through the weather stations of Hussainiya, Dezful, and Shush. For evaluation of Drought impact on the water quality and quantity of the Dez River, discharge statistics and qualitative parameters related to seven hydrometric stations along the Dez River were achieved through Khuzestan Water and Power Authority. The mean frequency of dissolved anions and dissolved cations in the hydrometric stations of the Dez River was achieved as HCO3>SO4>C and Ca>Na>Mg, respectively. The variance analysis of the water quality parameters showed that the effect of station and year on the amounts of discharge, EC, TDS, SARIW, pH, concentrations of Cl, HCO3, Ca, Mg, Na, and SO4 had a significant difference (P<0. 01). There was no significant trend for EC variations in stations of Sepid Dashte Sezar, Sepid Dashte Zaz and Tange Pange Sezar. While the trend of EC variations in the stations on the lower reaches of the river was significant and positive. The most severe Drought was recorded in 2008 in Hussainiya and Dezful stations and in 2011 in Shush station. During the Drought years, the mean water EC of Dez River increased by 15. 24%. According to the results, Drought phenomenon is effective on water quality in the company of issues raised by the water transfer, land use change and proper management of pollutant.

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APA: Copy

AZISH, S., ASAREH, A., & KHODADADI DEHKORDI, D.. (2019). Effect of Drought on the Water Quality and Quantity of Dez River. IRAN-WATER RESOURCES RESEARCH, 15(2 ), 306-318. SID. https://sid.ir/paper/100236/en

Vancouver: Copy

AZISH S., ASAREH A., KHODADADI DEHKORDI D.. Effect of Drought on the Water Quality and Quantity of Dez River. IRAN-WATER RESOURCES RESEARCH[Internet]. 2019;15(2 ):306-318. Available from: https://sid.ir/paper/100236/en

IEEE: Copy

S. AZISH, A. ASAREH, and D. KHODADADI DEHKORDI, “Effect of Drought on the Water Quality and Quantity of Dez River,” IRAN-WATER RESOURCES RESEARCH, vol. 15, no. 2 , pp. 306–318, 2019, [Online]. Available: https://sid.ir/paper/100236/en

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