干旱区生态环境知识资源中心(Arid): Indirect Impacts of Irrigation with Low Quality Water on The Environmental Safety

Arid

DOI	10.21608/ejss.2019.15434.1294
	Indirect Impacts of Irrigation with Low Quality Water on The Environmental Safety
	Farid, Ihab M.; Abbas, Mohamed H. H.; Bassouny, Mohamed A.; Gameel, Amany; Abbas, Hassan H.
通讯作者	Abbas, MHH
来源期刊	EGYPTIAN JOURNAL OF SOIL SCIENCE
ISSN	0302-6701
EISSN	2357-0369
出版年	2020
卷号	60 期号:1 页码:1-15
英文摘要	Using low quality water for irrigation is probably one of the main reasons for contaminating the arable lands with potentially toxic elements (PTEs), especially within the arid and semiarid regions. On the other hand, most farmers depend thereon on natural inefficient drainage systems to get rid of excess water flows. It was thought that the hydraulic continuities exist, totally or partially, among (a) the underground waters of the arable lands that receive low quality water for irrigation, (b) the underground waters of the nearby lands that use fresh Nile water for irrigation and (c) the sources of fresh water themselves. Therefore, the following assumptions were considered because of their potentially high ecological implications: H1: soil leakage of low quality irrigation water might have negative consequences on the quality of fresh water itself that is used for irrigating the nearby arable lands. H2: concentrations of potentially toxic elements (PTEs) in irrigation water are probably the main factors controlling their corresponding available and total concentrations in soil. H3: concentrations of PTEs within the edible parts of plants grown on the nearby areas irrigated with fresh water are relatively high and may be considered not suitable for consumption. To investigate the above-mentioned hypotheses, irrigation water (fresh Nile, underground and wastewaters), soil and plant samples were collected from three different governorates, i.e. New Salhia (El-Sharqia), ElSaff (Giza) and Meet Kenana (Qualubia). One site from each governorate was selected to represent the arable lands that use fresh Nile water for irrigation while the other sites were irrigated with either the underground water or wastewater solely. Quality of the fresh (Nile) irrigation water used in the studied locations was estimated as class II on the basis of its salinity hazards. The other water samples were estimated to be,according to the same basis, as of potentially high or very high salinity hazards. In case of water sodicity, SAR values did not exceed "13" in nearly most water samples. The BOD and COD values exceeded the acceptable levels (even in the Nile fresh water). Moreover, the measured values in fresh water seemed to be comparable, to some extent, with the corresponding ones estimated for either the underground or wastewaters; accordingly,we accept H1. Concentrations of the PTEs, i.e. Pb, Co and Cd in all the collected water samples, generally, did not exceed the maximum permissible levels (MPLs) recommended by FAO (1994). However, Ni was the only one among the studied PTEs whose concentration exceeded the MPL only in the underground water of New Salhiaduring the summer season. It is worthy to mention that AB-DTPA extractable PTEs were correlated significantly with PTEs concentrations in irrigation water. Also, AB-DTPA extractable PTEs were correlated significantly with their total contents in soil; hence, we partially accept the second hypothesis i.e. H2 Furthermore; concentrations of PTEs in the edible parts of plants irrigated with fresh Nile water exceeded their permissible levels and therefore, we partially admit H3 since using low quality water for irrigation showed potential hazards on the food quality obtained from the nearby arable lands irrigated with fresh water.
英文关键词	Potentially toxic elements Low quality water Irrigation Underground water Wastewater Environmental safety
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	ESCI
WOS记录号	WOS:000523336400001
WOS关键词	URBAN AREA ; SOIL ; CONTAMINATION ; GROUNDWATER
WOS类目	Soil Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334287
作者单位	[Farid, Ihab M.; Abbas, Mohamed H. H.; Bassouny, Mohamed A.; Gameel, Amany; Abbas, Hassan H.] Benha Univ, Fac Agr, Soils & Water Dept, Banha, Egypt
推荐引用方式 GB/T 7714	Farid, Ihab M.,Abbas, Mohamed H. H.,Bassouny, Mohamed A.,et al. Indirect Impacts of Irrigation with Low Quality Water on The Environmental Safety[J],2020,60(1):1-15.
APA	Farid, Ihab M.,Abbas, Mohamed H. H.,Bassouny, Mohamed A.,Gameel, Amany,&Abbas, Hassan H..(2020).Indirect Impacts of Irrigation with Low Quality Water on The Environmental Safety.EGYPTIAN JOURNAL OF SOIL SCIENCE,60(1),1-15.
MLA	Farid, Ihab M.,et al."Indirect Impacts of Irrigation with Low Quality Water on The Environmental Safety".EGYPTIAN JOURNAL OF SOIL SCIENCE 60.1(2020):1-15.