干旱区生态环境知识资源中心(Arid): Sensitivity analysis of water quality parameters related to flow changes in regulated rivers

Arid

DOI	10.1007/s13762-021-03421-z
	Sensitivity analysis of water quality parameters related to flow changes in regulated rivers
	Khonok, A.; Tabrizi, M. Sarai; Babazadeh, H.; Saremi, A.; Ghaleni, M. Mohammadi
通讯作者	Tabrizi, MS (corresponding author), Islamic Azad Univ, Dept Water Engn & Sci, Sci & Res Branch, Tehran, Iran.
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
ISSN	1735-1472
EISSN	1735-2630
出版年	2021-07
英文摘要	Upstream discharge planning of regulated rivers and its relationship with downstream water quality parameters can be a good indicator for quantitative and qualitative surface water resources management, especially in arid and semiarid regions. The present study aims to evaluate the effects of discharge released from Sefid Rud Dam on downstream water quality parameters using the Qual2kw 6 model and the YASAIw plugin. In this regard, samples were collected from the Sefid Rud River through 12 sampling stations at a distance of about 110 km and measured for 12 months over the period 2007-2020. Of these, eight samples (December 2007, October 2008, November 2008, February 2011, July 2008, April 2011, June 2011, and August 2011) were used for calibration, and four samples (November 2019, February 2020, August 2019, and May 2020) were used to validate the Qual2kw 6 model. Subsequently, the criteria of scatter index (SI), coefficient of determination (R-2), and mean bias error (MBE) were applied to compare the modeling results and the measured data. The modeling results indicated the high accuracy of the Qual2kw model in the calibration and validation steps given scatter index (SI) < 0.1 for dissolved oxygen (DO), pH, and temperature parameters. The highest values of R-2 in the two stages of calibration and validation were 0.63 and 0.70 for the parameters of discharge and electrical conductivity, respectively. The sensitivity analysis results showed that the parameters of biochemical oxygen demand (CBODu), electrical conductivity (EC), and pH were more sensitive to upstream changes compared to dissolved oxygen (DO), total phosphor (TP), and total nitrogen (TN) parameters in both flow modes (low and high water). Totally, the results showed that it is possible to manage the changes in downstream water quality parameters of the river by controlling the amount of flow released from the Sefid Rud Dam separately during high- and low-water months.
英文关键词	Qual2kw model Regulated stream Sefid Rud River Water quality monitoring
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000670209900001
WOS关键词	LAKE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367549
作者单位	[Khonok, A.; Tabrizi, M. Sarai; Babazadeh, H.; Saremi, A.] Islamic Azad Univ, Dept Water Engn & Sci, Sci & Res Branch, Tehran, Iran; [Ghaleni, M. Mohammadi] Arak Univ, Dept Water Sci & Engn, Arak, Iran; [Ghaleni, M. Mohammadi] Arak Univ, Water Res Inst, Arak, Iran
推荐引用方式 GB/T 7714	Khonok, A.,Tabrizi, M. Sarai,Babazadeh, H.,et al. Sensitivity analysis of water quality parameters related to flow changes in regulated rivers[J],2021.
APA	Khonok, A.,Tabrizi, M. Sarai,Babazadeh, H.,Saremi, A.,&Ghaleni, M. Mohammadi.(2021).Sensitivity analysis of water quality parameters related to flow changes in regulated rivers.INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY.
MLA	Khonok, A.,et al."Sensitivity analysis of water quality parameters related to flow changes in regulated rivers".INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (2021).