Younes Hamed

University of Gafsa/TN-Univ.Houston-Texas/USA

The southern Gabès aquifer in southeastern Tunisia faces significant stress due to unsustain-able groundwater extraction. This study employs a SEAWAT model to evaluate groundwater losses, salinization mechanisms, and the interaction between the confined aquifer and the Mediterranean Sea. The model, incorporating well pumping rates, regional freshwa...

Agricultural soil contaminated by phosphogypsum pile stocked in plan air remains a major problem in M’Dhilla city southwestern of Tunisia. The present effort aimed to enhance the knowledge of trace elements and radioactivity abundance and to assess the corresponding environment. X-ray fluorescence spectroscopy was used to evaluate the trace element...

The present study aims to assess the tectonic activity in the South Setifian allochthonous complex, providing insights into the evolution of the landscape. A morphometric analysis of Jebel Youcef Mountain (JYM) in Eastern Algeria was conducted to assess neotectonic activity. Six quantitative parameters were analyzed: stream length-gradient index, a...

This study evaluates the vulnerability of groundwater in the Boulefreis Wadi catchment, located in the Constantinois highlands of north-eastern Algeria, and the basin covers a surface of 938 km2 and has a semi-arid climate. The catchment is known for its high agricultural productivity and extensive use of fertilizers, which poses a significant risk...

Flash floods, known for their sudden onset and severe damages, present a major threat due to intense rainfall occurring within a brief period. This study focuses on the Tebessa Basin as a patt of the Atlas chain of eastern Algeria, and employs a comprehensive approach to morphologically characterize hydrographic units, aiming to assess flash flood...

In the Khaled-Teboursouk basin (Southern Mediterranean Basin), karstic aquifers are the main sources of drinking and irrigation water. They play a crucial role in the socio-economic development of the region. Therefore, the estimation of groundwater recharge is necessary for a good management of water resources, while considering the impacts of cli...

Groundwater contamination in the Mediterranean Basin is a severe problem that has a significant impact on environmental ecosystems and human health. The unconventional uranium and the potentially toxic elements (PTEs) of phosphate rocks are the principal contaminants in the phosphate mining industry in Tunisia. Phosphogypsum (PG) results from the v...

Rock fall accidents in mountainous cliff areas have significant consequences for human life and transportation. This study aimed to evaluate the rockfall hazard in the Cap Aokas cliff region located along the northeast coast of Algeria by identifying the key factors contributing to rockfall occurrence. We employed a combination of kinematic analysi...

The Setifian high-plains region, Northeast of Algeria, grapples with challenges in water resource management. As the water demand intensifies across a diverse range of sectors, assessing groundwater quality becomes indispensable. This article responds to the critical need for a thorough assessment of groundwater quality in the Wadi Boussellam sub-w...

Meeting freshwater demands in water-scarce regions is imperative, given challenges like hydric stress, urbanization, aridity, and population growth. This study focuses on the Tebessa aquifer system, a critical water source facing escalating demands. A primary objective is to identify actionable management strategies to improve groundwater quality d...

Fires are a growing problem even in temperate climate areas, such as those in Central Italy, due to climate change leading to longer and longer periods of drought. Thus, knowing the fire susceptibility of an area is crucial for good planning and taking appropriate countermeasures. In this context, it was decided to use only causal factors of a geom...

The management of surface water in basins has become of the utmost importance, especially given the expected changes in climate and land use. Therefore, the current work aimed to aid the management of the Khazir River basin by estimating sediment yield and surface runoff using the Soil and Water Assessment Tool (SWAT) at the hydrological response u...

Purposes This research focuses on the characterization of phosphate ore, its solid effluents, and nearby contaminated soils in the southwest Tunisia (Gafsa-Metlaoui Basin). It aims also at evaluating the vertical distribution and abundance of critical rare earth elements (REE) in the different materials and their ecological and environmental risks....

The present landscape configuration is influenced by structural expansions and ongoing tectonic activities, resulting in notable changes to geological features and landforms. The formation of the Atlas chain is a prime example of this, as it has been sculpted by the combined forces of erosional processes and tectonic activity. These processes have...

The Guelma-Bouchegouf irrigated perimeter uses water from the Bouhamdane dam between May and the end of October. It should be noted that the water is channelled to the perimeter via Seybouse Wadi, which serves as a water collector. The water is supplied during the dry season, which causes water pollution due to strong evaporation and industrial dis...

Tectonics is the scientific discipline concerned with the investigation of rock deformation within the Earth's crust and the forces that instigate such deformation. The comprehension of tectonic activity within a particular geographical area stands as an indispensable pursuit, as it serves to elucidate the intricate mechanisms responsible for the g...

The natural radioactivity of 238U, 232Th and 40K was measured in water and sediment samples collected from Sidi Salem dam (Tunisia) and Aïn Dalia dam (Algeria) in the Tuniso-Algerian transboundary basin. The samples were measured using a TERRA detector of gamma, beta, and alpha rays, and atomic absorption and gamma-ray spectrometry were used to ana...

The climate changes affect the hydrological cycle and the flow systems of waterways, which in turn alter the volume of water available resources locally, regionally, and globally at various levels. This study aims to evaluate the impact of the climatic changes on the availability of surface water resources in the basins of the Tigris, Great Zab, an...

The characterization of phosphorite features within specific North African sedimentary series remains incomplete. Hence, the primary aim of this research is to determine the composition of powder patterns and phosphatic allochem fragments within the Jebel Dhyr syncline, situated in northeastern Algeria. By focusing on this region, the study endeavo...

The current study deals with how floods affect the social and economic lives of villagers in the lower basin of the Khazir River (northern Iraq), where the villages Kazkan, Tal al-Laban, and Wardak are located within active floodplains close to the riverbed. The aim of this paper is to perform both spatial and temporal analysis of floods affecting...

Natural radioactivity of 238U, 232Th and 40K for liquid and solid samples collected from Sidi Salem dam (Tunisia) and Aïn Dalia dam (Algeria) were measured using TERRA detector of rays (gam-ma, beta, and alpha), Atomic adsorption and Gamma-ray spectrometry were used to analyze the levels of radionuclides and toxic heavy metals, respectively. Toxic...

The development of orogenic belts structures in the Southern-Central Tunisian Atlas is influenced by the evolution of tectonic activities during different phases, which are also closely linked to the formation of gravitational collapse structure. The typical example is that of the northern flank of the Jebel Orbata particularly the Ben Zannouch fol...

Flood damage assessment is considered the essential tool for evaluating risk to civil and agricultural systems in land use planning. The validity of the studies’ outcome depends on the availability of data and their spatial distribution. The present study came to compute flood susceptibility maps utilizing two application models: (i) the frequency...

Understanding erosion patterns and drainage conditions is crucial for optimizing agricultural productivity and for addressing the challenges of wastewater treatment. To achieve this, we employed a comprehensive approach, combining the mor-phometric method with weighted sum and Geospatial techniques. Utilizing a 30-m-wide Digital Elevation Model (DE...

In mountainous regions globally, landslides pose severe threats to both human lives and infrastructure, with the Mediterranean region, in particular, being highly susceptible to these destructive events that result in substantial damage to settlements and infrastructure. In this study, we employ a GIS-based approach to comprehensively characterize...

The NAO teleconnective pattern has a great influence on the European climate; however, the exact quantification of NAO pattern in the different areas is sometimes lacking, and at other times, highlights even large differences between the various studies. This motivation led to the identification of the aim of this research in the study of the relat...

Natural radioactivity of 238U, 232Th and 40K for water and sediment samples collected from Sidi Salem dam (Tunisia) and Aïn Dalia dam (Algeria) were measured using TERRA detector of rays (gamma, beta, and alpha), Gamma-ray spectrometry and atomic absorption spectroscopy were used to analyze the levels of radionuclides and heavy metals, respectively...

Soil salinization affects several soil properties as soil organic matter (SOM), aggregation, and microbe diversity, which may threaten the soil quality and its capacity for greenhouse gas sequestration. Relationship between soil salinity and soil respiration was extensively studied, but little is known about soil aggregation and soil organic carbon...

Groundwater quality plays a vital role in addressing freshwater demands, especially in semiarid regions with water scarcity. This study focuses on assessing groundwater quality in the Tebessa aquifer system, a primary water source for various needs. The investigation is prompted by challenges like hydric stress, aridity, urbanization, and populatio...

This study examines the radioactivity levels in Tunisia influenced by geological diversity and socio-economic influences. The region's landscapes are characterized by abundant mining and industrial activities, particularly phosphate mining and chemical sectors. Statistical analysis reveals that average radioactivity in the air (0.104 µSv) is lower...

Mediterranean basin exposed to ongoing processes of erosion and deformation. Neotectonics is the study of the geological processes involved in the deformation of the Earth’s crust. The topography of the terrain is greatly impacted by these neotectonic events, which has a considerable impact on the drainage pattern and general geomorphology of the r...

Land subsidence has been an ongoing issue for over a century along the Gulf Coast of Texas in the United States. This study assesses and models the factors contributing to land subsidence covering fifty-six (56) counties along the Gulf of Mexico coastline from Louisiana to the border of Mexico, approximately 300,000 km2. Geospatial statistical tech...

Purpose. In the electronics industry, stibium (Sb) is an important element used in the development of silicon-based devices. The metallogenic district of Guelma, known for its polymetallic antimony mineralization, is not currently exploited. The research purpose is to characterize the minerals and gang formations of antimony elements required as do...

Given the semi-arid to arid climate in the Regueb region of Central Tunisia, groundwater is a crucial resource for meeting the escalating demands of socioeconomic development. Careful estimation of the current recharge amount and the delineation of potential zones of rainfall precipitation are required for an accurate evaluation of the regional wat...

Large quantities of phosphogypsum originate from accumulated Tunisian industrial waste each year. Thus, mining effluents that do not comply with Tunisian discharge standards affect the hydrographic network and cause not only soil contamination of trace metal elements but are also considered a source of toxicity in the food chain and ultimately in t...

Outstanding and constructive participation. this certificate has been delivered to her efforts in the symposium activities whishing her more scientific success and exellence.

contamination of groundwater with nitrate in Regueb basin

forcasting of the salinity on short term: in Regueb basin

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The monitoring of water resources is becoming increasingly important for humid temperate climates in light of climate change, which shows a generalised increase in temperatures and a decrease in precipitation, which is not generalised but relative to the area of interest. In this context, it is interesting to understand what the climatic changes ha...

Research on solid precipitation and snow cover, especially in mountainous areas, suffers from problems related to the lack of on-site observations and the low reliability of measurements, which is often due to instruments that are not suitable for the environmental conditions. In this context, the study area is the Monti Sibillini National Park, an...

In the last decades, anthropogenic activities (e.g., intense agricultural activity, over-exploitation of water and petroleum resources, surface and groundwater contamination) caused many serious socio-economic and environmental problems (e.g., water and soil deterioration, increasing of water salinity, intense desertifcation, poor land management)....

Sinkhole (doline) collapse is one of the major natural hazards threatening people and property in the Middle East and North Africa (MENA) region, especially if the bedrock structure is epi-karstic, covered by encrusted material. Many dolines-avens collapses have been recorded in urban and rural areas in Northeast Algeria. Our study identifies local...

In semi-arid climate conditions (such as Central Tunisia), a crucial resource for satisfying the needs of socioeconomic development is groundwater. For water resource conservation and sustainable development, it is necessary to carry out an accurate estimation of groundwater quality to accurately assess the hydrogeochemical properties of the water....

Carbonate aquifers constitute a water reserve of essential importance for human supply. This study identified areas of extensive karstification, and groundwater resource potential in carbonate rocks in Tunisia, North Africa. Three karst systems of Jurassic, Upper Cretaceous, and Eocene ages are studied. A GIS-based predictive model is built using s...

In underground mining, the requirement for high production of useful substances to supply the metallurgical industry demands high levels of technicality in mining engineering. The brittle behavior of the rock mass involves acute deformations when mining operations are performed under a stress-driven failure mode. In this case, the marginal stabilit...

In the southern region of Gabes, groundwater is experiencing a quality deterioration in relation to the increase in demand to meet the various sectors of economic and agricultural activities. Indeed, the degradation of quality generally results in high concentrations of total dissolved solids, ranging from 2.44 to 13.68 g/L, and waters contaminatio...

Sinkhole collapse is one of the major hazards for people and property in the Middle East and North Africa (MENA) region, especially if the bedrock structure is karstic, covered by unconsolidated material. Our study identifies localized deformation that may be caused by a sinkhole activity based on the electrical resistivity tomography (ERT) techniq...

The Maknessy plain in central Tunisia is one of the most important agricultural basins in Tunisia. Given the semi-arid climate conditions, the irrigation of cultivated crops relies principally on the abstraction from groundwater resources. The assessment of the quality of the used water for agricultural purposes is crucial for safe production. Thus...

In semi-arid climate conditions (such as Central Tunisia), a crucial resource for satisfying the needs of socioeconomic development is groundwater. For water resource conservation and sustainable development, it is necessary to carry out an accurate estimation of groundwater quality to accurately assess the hydrogeochemical properties of the water....

Sidi Bouzid basin knows for several decades a fast-growing anthropogenic activity and, consequently, an increase in groundwater pollution which attracted researcher attention. For this task, we performed an exhaustive study to evaluate groundwater geochemical evolution. Our research begins with analyzing the geochemical process, then determining th...

The Sahara's Nememcha mountains chain suffers from a significant lack of large-scale geological information. In the Bir Later region with complex morpho-structural settings and arid climate conditions; geological maps have not been yet completed by competent authorities. However, this region harbours Algeria's largest phosphate mine; with its reser...

Despite efforts to protect the hydrosystems from increasing pollution, nitrate (NO3−) remains a major groundwater pollutant worldwide, and determining its origin is still crucial and challenging. To disentangle the origins and fate of high NO3− (>900 mg/L) in the Sidi Bouzid North basin (Tunisia), a numerical groundwater flow model (MODFLOW-2005) a...

Endoreic saline systems in Tunisia such as that of Chott El Guettar recorded the climatic changes as well as the setting of millennial cycles. This study deals with high-resolution proxies (colors variability, geochemistry, magnetic susceptibility, and grain size distribution) to find the different cycles. Cycles should be attributed either to inte...

Dolines are a major natural hazard threatening people and property in MENA region, especially if the bedrock is epi-karstic. This study identifies terrains that may be treated by a sinkhole based on the ERT imaging in Setifian high plains. We conducted 2-D Wenner and Wenner-Schlumberger profiles. The Wenner inverted models imaged the chimney and di...

https://www.mdpi.com/journal/sustainability/special_issues/0KKL3YLY76?fbclid=IwAR13XYgghQH7XN-Bx_l5Xh-SZdT2PR0ZPL8qLp5jaxxiI8uYZKLzoUjVnWM

Land subsidence is an ongoing problem negatively affecting Victoria County along the Gulf Coast. Groundwater withdrawal and hydrocarbon extraction in the County are some of the known factors behind this geological hazard. In this study, we have used geospatial analysis and a conceptual model to evaluate land subsidence. A significant decline in the...

The groundwater constitutes the major water resource in the Regueb region, which is one of the most important agricultural areas in Central Tunisia. Regueb has an arid climate with minimal amounts of precipitation that result in insignifcant natural recharge of its aquifer compared to the overexploitation of groundwater for agricultural activities....

Land subsidence is an ongoing problem negatively affecting Victoria County along the Gulf Coast. Groundwater withdrawal and hydrocarbon extraction in the County are some of the known factors behind this geological hazard. In this study, we have used geospatial analysis and a conceptual model to evaluate land subsidence. A significant decline in the...

Floods frequently threaten villages near the Khazir River’s floodplains, causing crop losses and threatening residential areas. We used flood-related hydrological software, including WMS and HEC-HMS, to study this issue and determine how to reduce the recurrence of flooding. The software can be used to calculate a hydrograph of torrential flows in...

The present study tends to close this gap of knowledge by introducing new data based on cross-sectional surveys operated through two steps, a specifc questionnaire at local hospitals involving mainly cancer patients (n=315) and a general households questionnaire concerning frstly the population of Gafsa region and secondly its surroundings (n=103)....

Soil erosion is one of the major environmental problems in the Middle East and North Africa (MENA) region. Favoured by the harmful effects of climate change, and intensified by heavy rainstorms, droughts, runoff, soil features, and land cover; the Meskiana catchment, NE Algeria suffers hugely from this hazard. The main purpose of the present study...

classes of VI in the study area, namely low (31.5-60), moderate (60-75), and high (75-13). The validation of the vulnerability model revealed a good correlation with NO 3 − and provided a high discretization of the groundwater vulnerability from anthropogenic pollution. This approach implies that more efforts should be taken to preserve the groundw...

Agricultural production relies on numerous interrelated key factors namely irrigation technique, drainage, soil quality … and irrigation water quality that has gained less concern in the agricultural management process. However, the evaluation of the used quality for irrigation especially for long-term use is of crucial importance. Unfortunately, n...

Discipline: Water Science and Technology, Environmental Engineering Language: English Standard abbreviations: J Wat Eng and Envi Sc. Frequency: 14 Papers/ Year (2 Vol, 7 papers by vol) ISSN Print: Under construction (After 2 Vol.) ISSN Online: Under construction (After 2 Vol.)

The Regueb basin constitutes an important agricultural area in Sidi Bouzid region (central Tunisia). Water scarcity and quality degradation propose an adequate management strategy. This strategy influenced by several parameters. In this context, the combining AHP approach with GIS tools was used as a method to study the water irrigation quality acc...