干旱区生态环境知识资源中心(Arid): Effects of floating covers used for evaporation suppression on reservoir physical, chemical and biological water quality parameters

Arid

DOI	10.1002/eco.2470
	Effects of floating covers used for evaporation suppression on reservoir physical, chemical and biological water quality parameters
	Bakhtiar, Mahsa; Aminzadeh, Milad; Taheriyoun, Masoud; Or, Dani; Mashayekh, Emad
通讯作者	Aminzadeh, M
来源期刊	ECOHYDROLOGY
ISSN	1936-0584
EISSN	1936-0592
出版年	2022
卷号	15 期号:8
英文摘要	Increasing demand for freshwater in arid regions with chronic water shortage calls for expansion of water storage for drought periods while protecting storage from evaporative losses. A cost-effective and scalable method for evaporation suppression uses floating elements; however, little is known regarding biochemical and water quality effects under these covers. Two identical reservoirs with area of 25 m(2) and depth of 2 m were used to investigate the influence of floating covers on water quality parameters for a period of one year (2019-2020). One of the reservoirs was covered with Styrofoam discs, and results were compared with the uncovered one. Results showed that the evaporation suppression efficiency of floating discs gradually decreased from 80% in spring to about 60% in winter. The comparison between reservoirs revealed that the presence of floating covers decreased pH, electrical conductivity (EC), total dissolved solids (TDS) and dissolved oxygen by 11%, 11%, 15% and 36%, respectively. We observed an increase in nitrate (30%), phosphate (27%) and ammonia (95%) concentrations in the covered reservoir. Results also demonstrated more concentration of biological populations such as algae and protozoa in the uncovered reservoir. The findings highlight improvement of certain water quality parameters in covered reservoirs such as EC and TDS with potential impacts on irrigation systems and soil health and salinity constraints.
英文关键词	evaporation suppression floating covers water quality water reservoirs
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000846837600001
WOS类目	Ecology ; Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392285
推荐引用方式 GB/T 7714	Bakhtiar, Mahsa,Aminzadeh, Milad,Taheriyoun, Masoud,et al. Effects of floating covers used for evaporation suppression on reservoir physical, chemical and biological water quality parameters[J],2022,15(8).
APA	Bakhtiar, Mahsa,Aminzadeh, Milad,Taheriyoun, Masoud,Or, Dani,&Mashayekh, Emad.(2022).Effects of floating covers used for evaporation suppression on reservoir physical, chemical and biological water quality parameters.ECOHYDROLOGY,15(8).
MLA	Bakhtiar, Mahsa,et al."Effects of floating covers used for evaporation suppression on reservoir physical, chemical and biological water quality parameters".ECOHYDROLOGY 15.8(2022).