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

Khan, Qasim; Kalbus, E.; Alshamsi, Dalal; Mohamed, Mohamed M.; Liaqat, Muhammad Usman

doi:10.3390/hydrology6030060

Cited by 21 publications

(3 citation statements)

References 31 publications

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“…Land use-land cover (LU-LC) changesThrough the use of Landsat imagery, land feature changes year over year can have qualitative and quantitative impacts on the aquatic system(Verma et al, 2020). Due to intense irrigation, the water table can be reduced by 42 m, as observed in UAE (Elmahdy and Mohamed, 2012; Ghebreyesus et al, 2016;Khan et al, 2019). In Egypt, elevated population density on the fertile Nile Valley lands has led to the curtailment of the areas in use for agriculture.…”

mentioning

confidence: 99%

WITHDRAWN: Soil-Quality Status in the Reclaimed Land of Arid Region

Asmoay

Mousa²,

Mohamed

2022

Preprint

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From the reclaimed land W-the western desert road, W-Mallawi district, El Minya Governorate of Egypt, sixteen soil samples were taken. The samples were physically and chemically analyzed in the USA, to evaluate the purity of the soil and its extracts using a variety of indices, including the soil quality index (SQI), sodium absorption ratio (SAR), base saturation percentage (BS%), summation pollution indexes (Psum), and the comprehensive ecological risk index (RI), which was also compared with guidelines from the food and agriculture organization (FAO). The findings indicate that (1) the pH changed from weakly to moderately alkaline, controlling the adsorption and heavy metal (HM) immobilization. (2) Soils are classified as calcareous if their CaCO3% content is greater than5%, with salinities varying from non-saline to moderately salty. (3) texture of 75% of the soil samples was clay, 25% was clay loam, Kaolinite minerals represented 25% of soil samples, and 75% of samples were montmorillonite minerals, depending on the relation of cation exchange capacity (CEC) with soils. (4) The predominance of SO4, Cl, & Ca is due to the degradation of carbonate and evaporite minerals in soil extracts. (5) exceeding N & P-compounds in extracts indicated the role of phosphate fertilizers, which added to the improvement of soil fertility. (6) Based on SQI readings, soil quality varied from poor to marginal, SAR revealed that there was no risk associated with sodium levels in soils, and according to BS percentages, soil fertility is low. (7) HM Contents had a low influence in soil extracts based on Psum & IR values. (8) Agriculture was more extensive in 2018 and 2020 than in 2022, which could mean that there was no farming throughout this growing season or harvest. (9) Due to the low fertility of the soil in the research location, it was advised not to apply phosphate fertilizers, which causes HM contamination in those soils that affect both animal and human health. Capsule: The Soil in the research sites were newly reclaimed as its quality is pivotal for agriculture.

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confidence: 99%

WITHDRAWN: Soil-Quality Status in the Reclaimed Land of Arid Region

Asmoay

Mousa²,

Mohamed

2022

Preprint

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“…This structuring of bacterial communities from saline groundwater possibly occurs transiently in the soil through a deterministic ‘salinity filtering’ process, wherein salt-tolerant species may replace less salt-tolerant members through species sorting. The higher salinity of irrigation water may be attributed to higher sodium and chloride concentrations ( Egamberdieva et al, 2010 ; Khan et al, 2019 ), which can cause an osmotic imbalance in the surrounding soil environment of bacteria. Bacteria may become dormant or lyse due to osmotic stress-induced plasmolysis depending on their salinity tolerance capacity.…”

Section: Discussionmentioning

confidence: 99%

Irrigation water salinity structures the bacterial communities of date palm (Phoenix dactylifera)-associated bulk soil

Loganathachetti

Alhashmi²,

Chandran³

et al. 2022

Front. Plant Sci.

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The irrigation of date palms (Phoenix dactylifera) with saline groundwater is routinely practiced in the agroecosystems of arid environments because of freshwater scarcity. This leads to salts deposition in topsoil layers and increases soil salinization. However, how different irrigation sources affect soil microbiota is poorly understood. Bulk soil samples were collected from date farms receiving non-saline water and saline groundwater to examine bacterial communities using metabarcoding. Overall, bacterial diversity measures (Shannon diversity index, richness, and evenness) did not vary between irrigation sources. Bacterial communities were structured based on irrigation water sources and were significantly associated with their electrical conductivity. Of 5,155 operational taxonomic units (OTUs), 21.3% were unique to soil irrigated with saline groundwater, 31.5% received non-saline water irrigation, and 47.2% were shared. The Proteobacteria abundance was higher in soil under saline groundwater irrigation while Actinobacteriota abundance was lower. A compositional shift at the genera level was also evident; the abundance of Subgroup_10 and Mycobacterium was higher under saline groundwater irrigation. Mycobacterium was a key indicator of OTU under saline groundwater irrigation while Solirubrobacter was an indicator of non-saline water irrigation. Functional gene analyses showed enrichment of fatty acid, cell wall, and starch biosynthesis pathways in soil under saline groundwater irrigation. These findings provide insights into how “salinity filtering” influences bacterial communities, key taxa, and the potential metabolic function in soil under increasing irrigation water salinities, and have broad implications for arid agroecosystems.

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“…Khan et al [60] studied the hydrochemistry characteristics of groundwater in two adjacent agricultural regions in Abu Dhabi, Remah and Al Khatim. The study aimed to evaluate the suitability of the existing groundwater in these regions for agricultural purposes based on its chemical characteristics.…”

Section: Groundwater Qualitymentioning

confidence: 99%

A Review of Hydrological Studies in the United Arab Emirates

Almheiri

Rustum

Wright

et al. 2023

Water

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The increasing interest in hydrological studies in the United Arab Emirates (UAE) has resulted in the publication of several papers on hydrology and its broad use for addressing contemporaneous challenges confronting humans and the environment in the region. However, for several reasons, these efforts have remained invisible and unrecognized. This paper has reviewed the literature on hydrological research in the UAE to provide a comprehensive source of information for researchers, practitioners, policymakers, and other stakeholders. The documented studies were carefully selected, relying on a bibliometric analysis methodology of five phases to specify the boundary of the study area, adopt the primary keywords for the search, evaluate the obtained papers, exclude the non-conforming ones, and classify the final results into four distinguished topics—namely, rainfall analysis, urban growth and flood hazards, cloud seeding and changing climate, and groundwater situation and utilization. The evaluation process considered assessing the papers’ relevancy, authenticity, and coverage of the main issues of interest. In all, a total of 50 published papers were identified based on the specified criteria and reviewed. The main findings were first that the amount of rainfall over the UAE has been declining in the last decade, and this trend is expected to continue, although intensities are rising, suggesting shorter duration events. Secondly, the extensive urban growth in the country has resulted in increasing incidences of urban floods and declining groundwater recharge. Both of these are to be expected as consequences of the increased imperviousness from urbanization and the higher intensities from shorter-duration rainfall events. Thirdly, although the cloud-seeding program has proved to be successful in increasing precipitation amounts, the impact of this on flooding due to more extreme rainfall intensities and on air quality remains worrisome. Finally, groundwater analyses have shown that it is still the main freshwater resource in the country, but its long-term sustainability and quality are being threatened by the declining recharge. This calls for a national policy for groundwater management in the UAE to tackle the challenges associated with the increasing demand for water in all sectors of the economy. The study recommended addressing the gap in the hydrological literature of the UAE, specifically in the field of big meteorological data analysis, the socioeconomic impacts of urban floods, the impacts of climate change in urbanized regions, and the possibility of using alternative resources to recharge groundwater as part of sustainable water management.

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

Cited by 21 publications

References 31 publications

WITHDRAWN: Soil-Quality Status in the Reclaimed Land of Arid Region

WITHDRAWN: Soil-Quality Status in the Reclaimed Land of Arid Region

Irrigation water salinity structures the bacterial communities of date palm (Phoenix dactylifera)-associated bulk soil

A Review of Hydrological Studies in the United Arab Emirates

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