干旱区生态环境知识资源中心(Arid): Proposal of an irrigation water quality index (IWQI) for regional use in the Federal District, Brazil

Arid

DOI	10.1007/s10661-020-08573-y
	Proposal of an irrigation water quality index (IWQI) for regional use in the Federal District, Brazil
	Muniz, Daphne H. F.; Malaquias, Juaci, V; Lima, Jorge E. F. W.; Oliveira-Filho, Eduardo C.
通讯作者	Muniz, DHF
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2020
卷号	192 期号:9
英文摘要	The present study aimed to propose a water quality index (WQI) for the Federal District, Brazil, as a management tool for water resources used in irrigation. Irrigated agriculture is a sector that has been growing in the region, with a consequent demand for quality water. One strategy for assessing water quality in rural areas is to adopt monitoring programs, which generate a large amount of data that often needs to be synthesized. The use of indexes is a way of organizing data in a synthetic and easy to understand format. Although initially formulated to assess the quality of drinking water, it is believed that a similar logic can easily be applied to assess the quality of irrigation water. Studies that evaluate the quality of water for irrigation are very common in arid or semi-arid regions, due to the problems of saline water in the soil and crops. On the other hand, the microbiological approach to water is poorly investigated, since contamination of crops can pose a risk to food security. In this work, three water bodies were selected in rural areas due to their preponderant use: irrigation. The monitoring occurred between May 2012 and April 2013 in 9 sampling points. For each sample collected, 22 physical, chemical, and biological parameters were established. Principal component analysis (PCA) was used in the evaluation and selection of water quality variables to compose the WQI. From PCA, it was possible to reduce the number of parameters from 16 to 6 main ones that reflect the water resources characteristics in the region, which were pH, electrical conductivity, total hardness, sodium absorption ratio, nitrate, andEscherichia coli. Of the five classes proposed for WQI, two points were classified as very good. The other sample points were classified as good and average for the irrigation practice. The adapted WQI proved to be a good tool in the management of the water quality of the three rivers, and it can be easily used to assess the quality of water for irrigation in the region.
英文关键词	Irrigation Multivariate analysis WQI
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000563659800001
WOS关键词	MULTIVARIATE STATISTICAL TECHNIQUES ; SURFACE-WATER
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/2XILL650/325877
作者单位	[Muniz, Daphne H. F.; Malaquias, Juaci, V; Lima, Jorge E. F. W.; Oliveira-Filho, Eduardo C.] Embrapa Cerrados, Brazilian Agr Res Corp, BR-73310970 Planaltina, DF, Brazil
推荐引用方式 GB/T 7714	Muniz, Daphne H. F.,Malaquias, Juaci, V,Lima, Jorge E. F. W.,et al. Proposal of an irrigation water quality index (IWQI) for regional use in the Federal District, Brazil[J],2020,192(9).
APA	Muniz, Daphne H. F.,Malaquias, Juaci, V,Lima, Jorge E. F. W.,&Oliveira-Filho, Eduardo C..(2020).Proposal of an irrigation water quality index (IWQI) for regional use in the Federal District, Brazil.ENVIRONMENTAL MONITORING AND ASSESSMENT,192(9).
MLA	Muniz, Daphne H. F.,et al."Proposal of an irrigation water quality index (IWQI) for regional use in the Federal District, Brazil".ENVIRONMENTAL MONITORING AND ASSESSMENT 192.9(2020).