Hydrochemical processes determining the groundwater quality for irrigation use in an arid environment: The case of Liwa Aquifer, Abu Dhabi, United Arab Emirates

Iqbal, Jibran; Nazzal, Yousef; Howari, Fares M.; Xavier, Cijo M.; Yousef, Ahmad

doi:10.1016/j.gsd.2018.06.004

Cited by 42 publications

(32 citation statements)

References 17 publications

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“…These differences in the chemistry are due to the dilution of groundwater sources by recharge in the pre-cordillera that composes HCO 3 waters and supplies sectors of Pica, while in other sectors of the Pampa del Tamarugal basin, where water inputs are very scarce and high evaporation rates occur, where high concentrations of SO 4 2-, Na + , and Clions are found 1,2 . These results are consistent with other studies in arid zones, establishing that the predominance of drinking water ions depends on the origin of the underground source, and in turn, this is influenced by hydrochemical processes that occur in the aquifer, as a consequence of leaching from rocks, evaporation, and recharge 13 .…”

Section: Resultssupporting

confidence: 92%

“…The positive Spearman correlation ( Figure 1) was observed between LS values and concentration of B, Ca 2+ , Mg 2+ , SO 4 2-, and Clions, in derivation, also with the increase in water salinity. The results are consistent with previous reports done by other authors in arid zones 13 .…”

Section: -supporting

confidence: 94%

“…waters The other supply networks presented a similar behavior with LS values between 8-11 units, except those from Matilla supply system, which presented an intermediate condition. The increase in LS value represents anionic contaminants that are produced and concentrated in the water distribution systems, with an emphasis on the drinking water from underground sources with high concentrations of anions 13 . The positive Spearman correlation ( Figure 1) was observed between LS values and concentration of B, Ca 2+ , Mg 2+ , SO 4 2-, and Clions, in derivation, also with the increase in water salinity.…”

Section: -mentioning

confidence: 99%

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Chemical Quality of Urban and Rural Drinking Water, in Tarapaca, Northern Arid Area of Chile

Herrera

Carrasco

Araneda

et al. 2019

J. Chil. Chem. Soc.

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The population of Tarapacá, northern Chile, is supplied with drinking water of underground origin. The objective of this study was to evaluate the chemical quality of water for human consumption in nine urban and rural locations and its compliance with current norms (temperature, salinity, alkalinity, dissolved majority ions, As and B). Geochemical classifications were deduced to consider the origin and relationships between waters. Moreover, five water stability indicators were evaluated to estimate potential corrositivity (B/Clratio, Cl -/SO 4 2ratio and Larson ratio) and calcareous inlays formation (Langelier Saturation Index and Ryzman Stability Index). The samples analyzed were determined had mild temperatures, slightly alkaline, with a wide range of values of salinity (74.7 -1287 mg L -1 ). The hydrogeochemical results confirmed four water types: Na + /HCO 3 --Cl --SO 4 2-, Na + /SO 4 2-, Na + -Ca 2+ /SO 4 2-, and Na + -Ca 2+ /Cl --SO 4 2-. The 168 samples reached 100% of the degree of compliance of NCh409, except in the wells of Colonia Pintados, where As concentration exceeded 13 to 30 times the norm. Sulphate and B exceeded international standards. The water taste deterioration can be attributed to high concentrations of SO 4 2-, Cl -, Ca 2+ , and B. Finally, water stability indexes determined the capacity for severe corrosively potential and formation of light calcareous deposits. The internal regulations of the country must harmonize and admit substances suggested by the WHO.

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Section: Resultssupporting

confidence: 92%

Section: -supporting

confidence: 94%

Section: -mentioning

confidence: 99%

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Chemical Quality of Urban and Rural Drinking Water, in Tarapaca, Northern Arid Area of Chile

Herrera

Carrasco

Araneda

et al. 2019

J. Chil. Chem. Soc.

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“…Groundwater salinization due to irrigated agriculture could be an issue in the future, especially in intensive agricultural areas. In fact, there is a direct link between increasing nitrate and sulphate concentrations in groundwater and excessive fertilizer use [48]. Even if groundwater is of a higher salinity than the recharging water, long-term adverse effects may still occur; however, the observable effects may be delayed for quite a few years due to the long travel times of salt in groundwater through unsaturated zones [8].…”

Section: Discussionmentioning

confidence: 99%

Irrigation Groundwater Quality Characteristics: A Case Study of Cyprus

Νικολάου

Neocleous

Christophi³

et al. 2020

Atmosphere

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This study was conducted in order to investigate possible quality changes in Cyprus’ groundwater resources over a 10-year period of pumping and to check the suitability of primary irrigation water. Water samples (n = 890) from private wells in agricultural areas were analyzed from 2009 to 2018 to determine various physicochemical properties. The sodium adsorption ratio (SAR) and residual sodium carbonate (RSC) were also calculated to evaluate potential soil degradation issues. Sodium, chloride and sulphate were found to be the predominant ions in groundwater. Quality evaluation showed possible restrictions in groundwater use for irrigation in relation to its salt content and the toxicity of specific ions having adverse effects on sensitive and several moderately sensitive crops. In particular, an increasing trend was observed in pumped groundwater for boron ion concentrations. Nevertheless, all samples evaluated were suitable for irrigation in terms of soil sodicitation and soil infiltration rate. This study indicates that in order to maintain long-term agricultural sustainability it is imperative to develop strategic plants to mitigate the adverse effects of water-pumped quality deterioration on soils and crops. Precision agriculture techniques may be adapted for better water and nutrient input/output management, thus protecting groundwater from salinization in agricultural areas. These results, among others, may be a useful tool to enhance the ability of Cyprus’s agricultural water sector to adapt to observed and anticipated climate impacts.

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“…However, this saline groundwater is used for agricultural purposes, mainly to irrigate date palm [16]. In the Emirate of Abu Dhabi, studies have been conducted in the area of Liwa [17,18], the western coast [19,20], and the eastern region [21,22]. The shallow sand dune aquifer of Abu Dhabi has been the subject of a study by Imes and Wood [23], who suggested that the increase of solute observed in the groundwater is a result of the upward transport of solute from underlying mudstone and evaporate, and the loss of groundwater through evaporation.…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical Analysis of Groundwater in Remah and Al Khatim Regions, United Arab Emirates

et al. 2019

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Groundwater constitutes an important part of the available water resources in arid areas. Knowledge of the quantitative and qualitative status of groundwater is a key aspect in optimal groundwater management. The purpose of this study was to provide technical information on the groundwater in the sand aquifer of two neighboring areas in the United Arab Emirates to support stakeholders working towards sustainable groundwater development. The chemical characteristics of the groundwater have been used to identify the processes controlling groundwater chemistry and assess the suitability of the groundwater for agricultural purposes. Despite tapping into the same aquifer, considerable differences in groundwater quality were found between the two study areas. The area with a shallower water table showed clear indications of irrigation return flow deteriorating the groundwater quality. Using standard agricultural indices, the groundwater at both study areas is classified as unfit for agricultural purposes. However, considering that groundwater is the only available water source for irrigation, it will continue to be used for agriculture. This indicates the need for improved irrigation management and the development of new strategies for sustainable groundwater development in arid areas in the context of food security.

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Hydrochemical processes determining the groundwater quality for irrigation use in an arid environment: The case of Liwa Aquifer, Abu Dhabi, United Arab Emirates

Cited by 42 publications

References 17 publications

Chemical Quality of Urban and Rural Drinking Water, in Tarapaca, Northern Arid Area of Chile

Chemical Quality of Urban and Rural Drinking Water, in Tarapaca, Northern Arid Area of Chile

Irrigation Groundwater Quality Characteristics: A Case Study of Cyprus

Hydrochemical Analysis of Groundwater in Remah and Al Khatim Regions, United Arab Emirates

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