Conceptual model for karstic aquifers by combined analysis of GIS, chemical, thermal, and isotopic tools in Tuniso-Algerian transboundary basin

Hamad, Amor; Hadji, Riheb; Bâali, Fethi; Besser, Houda; Redhaounia, Belgacem; Zighmi, Karim; Legrioui, Radhia; Brahmi, Serhane; Hamed, Younes

doi:10.1007/s12517-018-3773-2

Cited by 39 publications

(17 citation statements)

References 52 publications

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“…It is filled up by the rare, irregular rainfall, by the leakage from deep aquifers, and by the surplus of irrigation water (Kamel 2013; Besser et al, 2017). It is characterized by high salinity, and it is used generally in water shortage periods (Kamel, 2013; Hamed et al, 2014; Hamad et al, 2018); The CT aquifer: It is hosted in the carbonate formations of the Upper Cretaceous formations in the detrital deposits of the Miocene. It constitutes a huge reservoir of about 350.000 km 2 continuous from Algeria to Libya (Edmunds et al, 2003; Hamed et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Agriculture sustainability in arid lands of southern Tunisia: Ecological impacts of irrigation water quality and human practices*

Dhaouadi¹,

Besser

Wassar

et al. 2020

Irrigation and Drainage

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Groundwater resources in southwestern Tunisia are facing serious quantity and quality degradation. Given that they are the only source used for oasis irrigation, serious impacts on the soil of the region are expected. Accordingly, the main objective of this study is to evaluate the suitability of the sampled water from the Complex Terminal aquifer for irrigation purposes and to determine the potential impacts of their long-term use within the present agricultural practices on soil properties. The calculated ionic ratios indicate different classes ranging from permissible to unsuitable waters with respect to alkalinity standards (sodium adsorption ratio from 3.68 to 9.34, %Na from 36.7 to 61.2, and rill erodibility from 0.48 to 1.43). Water samples present high values of electrical conductivity, total dissolved solids, and potential salinity, about 54.5, 29.4, and 32.2%, respectively, which indicates serious salinity hazard. All the sampled waters may induce corrosion and clogging problems as deduced from the calculated light dynamic penetrometer and total hardness indices. The weighted water quality indices results (Canadian Water Quality Index and the irrigation water quality index) confirm the poor quality of the used irrigation water. The results of this study coupled with field investigations indicate that the cumulative impacts of low water quality and poor agricultural practices have damaged the total oasean ecosystem. K E Y W O R D S agricultural development, Complex Terminal, groundwater quality, land degradation, southern Tunisia oasis Résumé Les ressources en eau souterraine du sud-ouest de la Tunisie sont confrontées à une grave dégradation de la quantité et de la qualité. Étant donné qu'ils sont la seule source utilisée pour l'irrigation des oasis, de graves impacts sur le sol * Durabilité de l'agriculture dans les terres arides du sud de la Tunisie: impacts écologiques de la qualité de l'eau d'irrigation et des pratiques humaines

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Section: Methodsmentioning

confidence: 99%

Agriculture sustainability in arid lands of southern Tunisia: Ecological impacts of irrigation water quality and human practices*

Dhaouadi¹,

Besser

Wassar

et al. 2020

Irrigation and Drainage

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“…The most important triggering factor influencing the slope stability is the rainfall [39]. The annual average rainfall map was obtained from the inverse distance weight (IDW) interpolation of data from five hydroclimatic stations (Constantine, Hamma Bouziane, Aïn El Bey, Fourchi and Bir Drimil) over a 32-year period.…”

Section: Rainfallmentioning

confidence: 99%

Landslide Susceptibility Assessment in Constantine Region (NE Algeria) By Means of Statistical Models

Manchar

Benabbas

Hadji

et al. 2018

Studia Geotechnica Et Mechanica

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The purpose of the present study was to compare the prediction performances of three statistical methods, namely, information value (IV), weight of evidence (WoE) and frequency ratio (FR), for landslide susceptibility mapping (LSM) at the east of Constantine region. A detailed landslide inventory of the study area with a total of 81 landslide locations was compiled from aerial photographs, satellite images and field surveys. This landslide inventory was randomly split into a testing dataset (70%) for training the models, and the remaining (30%) was used for validation purpose. Nine landslide-related factors such as slope gradient, slope aspect, elevation, distance to streams, lithology, distance to lineaments, precipitation, Normalized Difference Vegetation Index (NDVI) and stream density were used in the landslide susceptibility analyses. The inventory was adopted to analyse the spatial relationship between these landslide factors and landslide occurrences. Based on IV, WoE and FR approaches, three landslide susceptibility zonation maps were categorized, namely, “very high, high, moderate, low, and very low”. The results were compared and validated by computing area under Road the receiver operating characteristic (ROC) curve (AUC). From the statistics, it is noted that prediction scores of the FR, IV and WoE models are relatively similar with 73.32%, 73.95% and 79.07%, respectively. However, the map, obtained using the WoE technique, was experienced to be more suitable for the study area. Based on the results, the produced LSM can serve as a reference for planning and decision-making regarding the general use of the land.

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“…This basin presents an increasing water deficit under the combined effect of climatic factors and the growth of needs. In this area, more than 80% of the available water is used for irrigated agriculture and the mining industry (especially for phosphate ore treatment) with relatively poor use efficiency (Hamed et al, 2013(Hamed et al, , 2018Mokadem et al, 2016;Hamad et al, 2018). The overexploitation of groundwater in this region has reinforced the downward trend in the water levels, and the aquifer drawdown has sometimes reached 0.5-10 m/year (Hamed, 2011;Hamed et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Modelling of potential groundwater artificial recharge in the transboundary Algero‐Tunisian Basin (Tebessa‐Gafsa): The application of stable isotopes and hydroinformatics tools^*

Hamed

Hadji

Ncibi

et al. 2021

Irrigation and Drainage

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Water resource overuse is a considerable challenge in areas with diverse activities and mixed climate. An area with deteriorated water quality (salinity higher than 5 g/L), typical of the transboundary Algero-Tunisian area of the Tebessa-Gafsa Basin in North Africa, was selected to investigate the spatial distribution of groundwater recharge and the water resources management. Several data including soil type, hydrogeologic characteristics, geomorphologic parameters, and climatic settings were used. Seasonal and early groundwater recharge and evapotranspiration were evaluated by applying the physical WetSpass model (Water and Energy Transfer between Soil, Plants, and Atmosphere Under quasi-Steady State) model-based geographic information system during 44 years. Results indicate spatio-temporal changes in the recharge values. The highest values (13.3 mm) were recorded to the north of the study area during the wet season, while the lowest values, which reached À0.5 mm, were recorded to the south during the dry season. The recharge period of these transboundary aquifers, dated using isotopic tools ( 3 H, 2 H, and 18 O), coincides with the Late Pleistocene and the Early Holocene humid periods. This Pleistocene and Holocene period could be responsible for the groundwater recharge in the Middle East and North Africa regions. Then, management and geovalorization of unconventional water processes promoting better water resource use have been proposed by applying artificial groundwater recharge.

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Conceptual model for karstic aquifers by combined analysis of GIS, chemical, thermal, and isotopic tools in Tuniso-Algerian transboundary basin

Cited by 39 publications

References 52 publications

Agriculture sustainability in arid lands of southern Tunisia: Ecological impacts of irrigation water quality and human practices*

Agriculture sustainability in arid lands of southern Tunisia: Ecological impacts of irrigation water quality and human practices*

Landslide Susceptibility Assessment in Constantine Region (NE Algeria) By Means of Statistical Models

Modelling of potential groundwater artificial recharge in the transboundary Algero‐Tunisian Basin (Tebessa‐Gafsa): The application of stable isotopes and hydroinformatics tools^*

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Conceptual model for karstic aquifers by combined analysis of GIS, chemical, thermal, and isotopic tools in Tuniso-Algerian transboundary basin

Cited by 39 publications

References 52 publications

Agriculture sustainability in arid lands of southern Tunisia: Ecological impacts of irrigation water quality and human practices*

Agriculture sustainability in arid lands of southern Tunisia: Ecological impacts of irrigation water quality and human practices*

Landslide Susceptibility Assessment in Constantine Region (NE Algeria) By Means of Statistical Models

Modelling of potential groundwater artificial recharge in the transboundary Algero‐Tunisian Basin (Tebessa‐Gafsa): The application of stable isotopes and hydroinformatics tools*

Contact Info

Product

Resources

About

Modelling of potential groundwater artificial recharge in the transboundary Algero‐Tunisian Basin (Tebessa‐Gafsa): The application of stable isotopes and hydroinformatics tools^*