Water quality and discharge of the Lower Jordan River

Hillel, Noa; Geyer, Stefan; Licha, Tobias; Khayat, Saed; Laronne, Jonathan B.; Siebert, Christian

doi:10.1016/j.jhydrol.2015.06.002

Cited by 37 publications

(18 citation statements)

References 31 publications

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“…Notably, the high EC values' variabilities in areas near the settlements were due to the solid and liquid waste from the settlements such as Ashenge, Korem, Waja, and Aba'ala towns and their environs (Figure ). Similar findings were found in the Lower Jodran River (Hillel et al, ), where the EC values declined in the rainy season because of the flood dilution effects. As can be seen in Figure , a negative logarithmic trend between the baseflow discharge and the EC value was found for the Golina inlet, the largest river.…”

Section: Discussionsupporting

confidence: 87%

“…Salts in the root zone are also dynamic and often vary with climate (Goudie, ). In particular, low rainfall and high temperature also induce secondary salinization in arid environments (Hillel et al, ). Similarly, Kirzhner et al () reported that salinity increased in a catchment due to the effect of evapotranspiration.…”

Section: Introductionmentioning

confidence: 99%

“…In mountainous regions, the saline waters diffuse towards the lowlands (Shiati, ), resulting in a higher salt load on the lowland basins than the headwaters (Costelloe et al, ). Temporally, the lower salt concentration occurs during the wet seasons due to a rain dilution effect in the drylands of the world (Hillel et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Temporally, the lower salt concentration occurs during the wet seasons due to a rain dilution effect in the drylands of the world (Hillel et al, 2015).…”

mentioning

confidence: 99%

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Spatial and temporal patterns of water salinity in the marginal grabens of Ethiopia's Danakil Depression

et al. 2019

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Rising salinity is a severe problem associated with land degradation in arid and semiarid regions. This study seeks to understand the spatiotemporal patterns of water salinity and their implication on the downstream water availability in the marginal grabens of northern Ethiopia. We measured the electrical conductivity (EC) of flash floods, baseflows, springs, wells, and lakes. A total of 1,168 samples was collected from 177 spatially distributed water sources (2016–2017). This study shows that there was a significant difference in the EC values of the water points between rainy (1,403 ± 425 μS cm−1) and dry seasons (2,261 ± 258 μS cm−1). Besides, there is an inverse relationship between the river discharges and the runoff EC in the study area. The average value of the water EC was also higher in the limestone area than in the basalt sites. In addition, the water EC increased from the escarpments (396 ± 176 μS cm−1) towards the outlets of the graben basins (1,670 ± 942 μS cm−1). These water EC hotspots in the dry season imply that the river basins are in a closing status due to the erratic rainfall and water extraction by humans. However, the rising water EC and moisture stress endanger the existing agricultural development. Because of the extent and seriousness of salinity, integrated catchment management strategies are needed to tackle the degrading water quality and quantity in the marginal grabens along the northern Ethiopia Rift Valley.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Temporally, the lower salt concentration occurs during the wet seasons due to a rain dilution effect in the drylands of the world (Hillel et al, 2015).…”

mentioning

confidence: 99%

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Spatial and temporal patterns of water salinity in the marginal grabens of Ethiopia's Danakil Depression

et al. 2019

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“…This finding corroborated results obtained by Akri (2015) that groundwater chemistry is mainly influenced by dissolution of halite, reverse ion exchange, and anthropogenic sources. The low ionic Na/Cl ratio of 0.12 suggests prevalence of halite sources in the boreholes while the high Na/Cl ratio of 2.84 for wells suggests Na-rich carbonate sources according to Hillel et al (2015). Furthermore, low ionic ratio of Mg/Ca of 0.2 and 0.04 for the boreholes and wells which is < 0.5 indicated dissolution of limestone or gypsum in the aquifer as mentioned by Vengosh and Rosenthal (1994).…”

Section: Correlation Analysesmentioning

confidence: 94%

Evaluation of groundwater quality in a rural community in North Central of Nigeria

Sojobi

2016

Environ Monit Assess

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Evaluation of water quality of nine boreholes and three open hand-dug wells in a rural community in North Central Nigeria revealed relative abundance of cations Na > k > Ca > Mg > Zn > Pb and anions Cl(-) > PO4(2-) > SO4(2-) > NO3(-) in the boreholes and cations Ca > Na > K > Mg > Pb and anions NO3(-) > PO4(2-) > SO4(2-) > Cl(-) in the wells. The major contaminants exceeding SON and WHO permissible limits were NO3(-) , Mg, TH, pH and Mg, Pb, TH, pH and DO in the wells and boreholes, respectively. They are attributable to anthropogenic sources such as domestic waste water and poor waste disposal and natural sources such as mineral dissolution from clayey aquifer which made the acidic groundwater unsuitable for consumption unless they are appropriately treated. Correlation studies revealed existence of three major mineral groups in the aquifer Ca-Fe group, Na-Mg group, Zn-K group, as well as a minor group Pb-group, and they determine the chemical composition of the groundwater and the ionic exchange between the groundwater and mineral-bearing clayey aquifer. In order to curb microbial contamination by Enterobacter aerogenes and Escherichia coli, it is recommended that proper latrines and drainages be provided while domesticated animals should be restricted from boreholes and well. Further, treatment with water guard and pur purifier is recommended.

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Anthropogenic influence on water quality and phytoplankton diversity of upper Ganga basin: A case study of Ganga River and its major tributaries

Malik

Sharma

et al. 2021

World Water Policy

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Water quality plays a vital and key role in estimating the diversity and abundance of phytoplankton in freshwater ecosystem. The water quality of freshwater body is rapidly deteriorating by various anthropogenic activities and diverse emancipations from the population growth, urbanization, and industrialization. The aim of present research work was to estimate the anthropogenic influence on water quality and phytoplankton diversity of upper Ganga basin. The water quality and plankton diversity of a Ganga River and its major tributaries was studied between September 2018 and September 2020 in eight sampling stations. Some physico‐chemical parameters like turbidity, dissolved oxygen, and biological oxygen demand showed a slight increase in sampling stations 7 and 8. Multi‐correlation was calculated between physico‐chemical parameters and phytoplankton density. Totally 31 genera of phytoplankton were recorded and represented by five groups, Bacillariophyceae (14 genera), Chlorophyceae (11 genera) Myxophyceae (4 genera), Euglenophyceae (1 genera), and Xanthophyceae (1 genera). Dissolved oxygen showed a direct influence on the distribution of plankton and also showed a positive correlation with phytoplankton diversity. Finally, it can be concluded that human activities including River bed mining, construction of Dam, and barrages had negatively impacted the water quality and phytoplankton diversity. Still, these kinds of activities to be checked regularly and can be controlled.

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Water quality and discharge of the Lower Jordan River

Cited by 37 publications

References 31 publications

Spatial and temporal patterns of water salinity in the marginal grabens of Ethiopia's Danakil Depression

Spatial and temporal patterns of water salinity in the marginal grabens of Ethiopia's Danakil Depression

Evaluation of groundwater quality in a rural community in North Central of Nigeria

Anthropogenic influence on water quality and phytoplankton diversity of upper Ganga basin: A case study of Ganga River and its major tributaries

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