Abdellah El Hmaidi

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• Doctor
• Professor (Full) at Université Moulay Ismail de Meknes

This study investigated the potential of biofertilizers derived from readily available organic waste—shrimp waste (SW), potato peels (PP), and almond shells (AS)—as sustainable alternatives to chemical fertilizers (CF) for promoting common wheat growth. To comprehensively evaluate their impact, we employed a combination of statistical analysis and...

The Ouislane sub-watershed is currently experiencing severe water shortages and is highly dependent on its water supply. The sub-watershed spans two communes: Meknes to the north and El Hajeb to the south. It serves as the primary water source for irrigation and drinking purposes for the local population. Consequently, it is crucial to assess the s...

Selecting proper sites for onshore wind power plants (OWPPs) is a challenging task due to the inherent uncertainty in the decision-making process. This paper proposes a novel hybrid methodology that combines fuzzy logic, multi-criteria decision making (MCDM), and machine learning (ML) techniques, based on geographic information system (GIS). First,...

Preserving water and soil resources ranks among the top priorities outlined in the national water strategy. Indeed, the integrated management of water resources in vulnerable territories, particularly in Morocco, requires a deep knowledge of the hydrological functioning and use of water resources in these regions. The diverse hydroclimatic and morp...

Water resources in the Meknes-El Hajeb region are under stress because of the agricultural practices, domestic and industrial wastewater, which are the primary sources of pollution in the study area. Consuming contaminated water poses significant public health risks and is a serious problem in rural areas. This research project aims to assess water...

The Saïss basin in the Fez-Meknes region of Morocco, covering approximately 2100 km2, faces increased water demand due to population growth, economic development, and climate change, making groundwater a crucial resource. This study aims to delineate areas with groundwater potential (GWP) and evaluate the performance of various machine learning, de...

There is a need for a comprehensive comparative analysis of spatiotemporal variations in surface water quality, particularly in regions facing multiple pollution sources. While previous research has explored the use of individual water quality indices (WQIs), there is limited understanding of how different WQIs perform in assessing water quality dy...

In Morocco, the capacity of dam reservoirs has decreased in recent years due to water erosion. This study aims to identify the sub-watersheds most vulnerable to soil erosion in the Tigrigra watershed by utilizing morphometric analysis of linear, landscape, and shape parameters and various multi-criteria decision models. These approaches allow for t...

Soil losses need to be quantified in watersheds to implement erosion protection measures. The main objective of this work is to quantify soil loss in the Tigrigra watershed over the reference period 1985-2020 and two future periods 2050-2070, A Revised Universal Soil Loss Equation (RUSLE) model supported by geographic information systems (GIS) and...

The Saïss water table is one of Morocco's major agricultural regions. Its water resources satisfy domestic, agricultural, industrial, and tourist needs. The present work focuses on the technique used to detect spatiotemporal variations in the overall physicochemical, microbiological, and heavy metal quality of groundwater in the Saïss basin, as ass...

The main goal of this study is to predict nitrate (NO³⁻) levels in the Saiss basin water table as a function of various physicochemical parameters. To accomplish this, three machine learning approaches were utilized: multiple linear regression (MLR), super vector regression (SVR), and artificial neural networks (ANN). The independent variables were...

High nitrogen (N) fertilizer rates can result in excessive nitrate (NO3⁻N) in soils and groundwater. The Saiss basin is an agricultural area in Morocco, where substantial increases in nonpoint source pollution from excessive N fertilization is commonly observed. The purpose of this study was to determine the short-term effect of N fertilizer applic...

In Morocco, the flood risk dimension is rarely considered in urban planning. However, the city of Meknes does not escape this problem, especially with the urban expansion toward areas vulnerable to flooding. Moreover, this work aims to elaborate a vulnerability map and a flood risk plan for Meknes. The methodology adopted was based on collecting an...

The study of rare earths, trace elements and major elements makes it possible to distinguish the different entities of a plutonic complex in general. The aim of this work is to apply the supervised classification model based on artificial neural networks Multi-layer Perceptron (ANN-MLP) in a database of 168 granitoid samples of the Aouli pluton (Hi...

The Upper Ziz basin located in the southeast of Morocco, has a total area of 4,351 km2. The surface water feeds El Hassan Addakhil dam, which insures water supply for the downstream cities of Errachidia, Rissani, Erfoud and others along the Ziz valley. This study aimed to evaluate the availability of water resources in this basin known by its arid...

The agricultural system that prevails in Morocco is typified by the triptych of cereals, cattle, and olive cultivation. The cereal sector holds significant prominence in the Moroccan agricultural industry. This phenomenon exerts a notable socio-economic influence on the country, as it constitutes a notable 10-20% of the overall Gross Domestic Produ...

Groundwater of the El-Kantara plain needs greater attention, because it is the alternative source of water for domestic and agricultural purposes. Water pollution affects both water quality and human health. Hence it is essential for continuous monitoring of the quality of groundwater so that pollution can be minimized. This study aims to evaluate...

Due to its cruciality, water requires a high care to its physicochemical and microbiological properties to ensure the quality of several utilizations. The particles it carries are likely to be ingested, breathed, or come into contact with the skin. For the classification of the quality of surface water in the Moulouya River (NE, Morocco), this stud...

In this study, we used HYDRUS-1D software to simulate soil water and nitrate (NO3-N) transport in a rainfed wheat field under various nitrogen (N) fertilizer scenarios (0 to 126 kg ha-1) in Morocco. We used inverse modeling to calibrate the input parameters involved in the simulation. The comparison between simulated and measured soil water (SWC) a...

The Rdat watershed is part of the Sebou basin, one of the most hydrological units in Morocco, in which agricultural activity is developed and constitutes an important mode of land use pattern. The expansion of urbanization, population growth, climate change, drought and water resource scarcity are making the land more prone to erosion, where gully...

The Tafilalet plain in south-eastern Morocco is characterized by two main economic activities -agriculture and tourism- supported by water from the Quaternary aquifer. This aquifer is under increasing pressure due to low annual rainfall (71.5 mm/year) and intense agricultural activities. Consequently, identifying groundwater recharge mechanisms and...

In coastal areas, groundwater is the main source of consumption for drinking water, industry and agriculture. The Essaouira syncline is part of the Moroccan Atlantic coast, it is an area which is given a heavy responsibility in the socio-economic development of Morocco. The study area is limited to the north by the Jbeb Hadid, to the south by the T...

The geophysical study using the VES and the ERT, carried out in the coastal area of Essaouira (Morocco), for the purpose of mapping the aquifers by combining the two geo-electrical methods, the results allowed us to determine the lateral and vertical distribution of the geological formations in the study region. Thereafter the exploitation of these...

The geophysical study using the VES and the ERT, carried out in the coastal area of Essaouira (Morocco), for the purpose of mapping the aquifers by combining the two geo-electrical methods, the results allowed us to determine the lateral and vertical distribution of the geological formations in the study region. Thereafter the exploitation of these...

The objective of this research was to determine the recharge of the Cretaceous aquifers by the High Atlas, as well as the interaction and possible mixing phenomena between the waters of the different aquifers, by investigating the hydrochemical and isotopic evolution of groundwater flow paths from the limestone karst systems of the High Atlas to th...

In Morocco, several major development projects have been planned to address the worrying concern for soil and water resources. They aimed to reduce the soil degradation and loss of soil fertility caused mainly by water erosion, deforestation, and agricultural practices. The objective of this work is the quantification of the water balance and soil...

For any hydrological or hydrogeological system, the arrival of new rains is the input signal to the system. This isotopic signature of precipitation is of major interest in understanding the recharge processes of the aquifer system. On the scale of a given basin, staged stations at different altitudes and spread out in space allow this input signal...

The coastal aquifer of the Essaouira syncline (Morocco) was studied to identify the main processes at the origin of the salinization of groundwater. In fact, a multicriteria analysis approach on hydrochemical data and physicochemical parameters of the Plio-Pleistocene aquifer was used to understand their spatio-temporal variation and their origins....

Prediction of daily global solar radiation with simple and highly accurate models would be beneficial for solar energy conversion systems. In this paper, we proposed a hybrid machine learning methodology integrating two feature selection methods and a Bayesian optimization algorithm to predict H in the city of Fez, Morocco. First, we identified the...

Soil erosion is an increasingly issue worldwide, due to several factors including climate variations and humans’ activities, especially in Mediterranean ecosystems. Therefore, the aim of this paper is: (i) to quantify and to predict soil erosion rate for the baseline period (2000–2013) and a future period (2014–2027), using the Revised Universal So...

Groundwater remains the main water resource for consumption of potable water, irrigation in the agricultural field, and for the use in industrial and touristic domains by inhabitants of cities and villages in the coastal areas with arid and semi-arid climate. In order to protect the groundwater table of the coastal zone of Essaouira, located in the...

Surface water is subject to strong anthropogenic pressures caused by the development and extension of agricultural activities and also by industrial and domestic activities. As a result, rational and sustainable management of water resources is necessary in order to protect them. The objective of this work is the use of geographic information syste...

Groundwater remains the main water resource for consumption of potable water, irrigation in the agricultural feld, and for the use in industrial and touristic domains by inhabitants of cities and vil�lages in the coastal areas with arid and semi-arid cli�mate. In order to protect the groundwater table of the coastal zone of Essaouira, located in th...

From a management perspective, water quality is determined by the desired end use. Water intended for leisure, drinking water, and the habitat of aquatic organisms requires higher levels of purity. In contrast, the quality standards of water used for hydraulic energy production are much less important. The main objective of this work is focused on...

The purpose of this study is to develop mathematical models based on artificial intelligence: Models based on the support vectors regression (SVR) for drought forecast in the Ansegmir watershed (Upper Moulouya, Morocco). This study focuses on the prediction of the temporal aspect of the two drought indices (standardized precipitation index-SPI and...

Machine learning (ML) models are commonly used in solar modeling due to their high predictive accuracy. However, the predictions of these models are difficult to explain and trust. This paper aims to demonstrate the utility of two interpretation techniques to explain and improve the predictions of ML models. We compared first the predictive perform...

The groundwater vulnerability assessment is an effective tool for protecting groundwater from pollution. The objective of this study is to determine the groundwater vulnerability of the Plio-Quaternary aquifer to pollution in the Saiss basin of Morocco using the DRASTI-LU framework. As validation of groundwater vulnerability map using the Pearson c...

The groundwater vulnerability assessment is an effective tool for protecting groundwater from pollution. The objective of this study is to determine the groundwater vulnerability of the Plio-Quaternary aquifer to pollution in the Saiss basin of Morocco using the DRASTI-LU framework. As validation of groundwater vulnerability map using the Pearson c...

Accurate assessment of the solar resource is an essential step for successful planning, design, and operation of solar energy systems. In this study, the potential of three machine learning methods, i.e. Gaussian Process(GP), Support Vector Machines Regression (SVR), and Artificial Neural Networks (ANN), was evaluated for estimating monthly solar i...

A geophysical study carried out in the framework of the water resources recognition within the Essaouira coastal area (Morocco) enabled to outline the spatial distribution of the Plio-Pleistocene and Cretaceous formations. It helped to determine the thickness and extension of the main aquifer used for irrigation purpose. The overall aim of this stu...

Anthropogenic and natural disturbances to freshwater quantity and quality is a greater issue for society than ever before. To successfully restore water resources in impaired watersheds requires understanding the interactions between hydrology, climate, land use, water quality, ecology, social and economic pressures. Current understanding of these...

La présente étude a pour but d’estimer les pertes en sol dans le bassin versant de l’Oued Mikkès en amont du barrage Sidi Chahed situé dans la région de Meknès (Maroc), par l’utilisation de l’équation universelle révisée des pertes en sol de (Wischmeier et Smith, 1978). La spatialisation du modèle empirique s’est basée sur l’intégration des cinq fa...

The coastal aquifer of the Essaouira syncline (Morocco) was studied to identify the main processes at the origin of the salinization of groundwater. In fact, a multicriteria analysis approach on hydrochemical data and physicochemical parameters of the Plio-Quaternary aquifer was used to understand their spatio-temporal variation and their origins....

Prediction of daily global solar radiation with simple and highly accurate models would be beneficial for solar energy conversion systems. In this paper, we proposed a hybrid machine learning methodology integrating two feature selection methods and a Bayesian optimization algorithm to predict H in the city of Fez, Morocco. First, we identified the...

Surface water is subject to strong anthropogenic pressures caused by the development and extension of agricultural activities and also by industrial and domestic activities. Pollution is a serious problem for the environment due to discharges dumped into rivers and excessive use of agricultural fertilizers and discharges from urban and industrial s...

The objective of this study was to assess the groundwater vulnerability to nitrate (NO3−) pollution in the Sais basin, based on the drinking threshold (50 mg/L), using the random forest (RF) model. A spatial dataset consists of the nitrate concentrations observed in 154 water samples and 14 explanatory variables was considered in this research. The...

This study assesses the spatial and temporal physico-chemical quality of the surface waters of Moulouya River based on the global pollution index PI. Several physico-chemical parameters (T°C, pH, electrical conductivity (EC), dissolved Oxygen (DO), BOD 5 , PO 4 3À , NH 4 þ , SO 4 2À and NO 3 À) were monitored on 66 samples collected in 2014 during...

The objective of this study is to evaluate the nitrate contamination in the plioquaternary aquifer of Sais Basin based on a statistical approach. A total of 98 samples were collected in the cultivated area during the spring and autumn period of 2018. The results show that 55% and 57% of the samples in spring and autumn respectively exceed the thres...

The preservation of soil resources is a primary global concern and a permanent challenge for all Mediterranean countries. In Morocco, the capacity of dam reservoirs continues to decline from one year to the next due to the rate of siltation, mainly due to the phenomenon of water erosion. Indeed, the origins of this erosion are generally related to...

The Water Quality Index (WQI) is a numerical expression used to assess the overall water quality from a large amount of data and to be easily understood by managers and decision-makers. In this study, the WQI with nine physicochemical parameters (pH, T °C, CE, O_diss, NH4, NO3, SO4, PO4 and BOD5) was used to evaluate the overall quality of the surf...

This paper aims to develop a method to assess regional water balances using remote sensing techniques. The Boufakrane river watershed in Meknes Region (Morocco), which is characterized by both a strong urbanization and a rural land use change, is taken as a study case. Firstly, changes in land cover were mapped by classifying remote sensing images...

The preservation of soil resources is a primary global concern and a permanent challenge for all Mediterranean countries. In Morocco, the capacity of dam reservoirs continues to decline from one year to the next due to the rate of siltation, mainly due to the phenomenon of water erosion. Indeed, the origins of this erosion are generally related to...

The main objective of this work is to develop a hydrological model of the Upper Sebou watershed located in northwest of Morocco, by applying the agro-hydrological model SWAT (Soil and Water Assessment Tool). The modeling was carried out on a period of 14 years including 2 years as warm-up period, 5 years for calibration and 7 years for validation....

The preservation of soil resources is a primary global concern and a permanent challenge for all Mediterranean countries. In Morocco, the capacity of dam reservoirs continues to decline from one year to the next due to the rate of siltation, mainly due to the phenomenon of water erosion. Indeed, the origins of this erosion are generally related to...

Drought is a normal and recurring climatic characteristic that can potentially occur anywhere, although its characteristics, such as severity, magnitude, frequency, may vary from region to region. Drought is one of the most important climate hazards that can have negative effects on natural and socio-economic systems.The spatial and temporal distri...

Groundwater remains the main water resource for consumption on potable water, irrigation in the agricultural field and for the use in industrial and touristic domains by inhabitants of cities and villages in the coastal areas with arid and semi-arid climate. In order to protect the groundwater table of the coastal zone of Essaouira, located in the...

The Boufekrane watershed, located in the upper part of the Sebou watershed, limited by the Middle Atlas mountain chain in the south. Characterized by a very important areas for agricultural practice with high quality of soils and a very large quantity of water resources. However, it is undergoing rapid changes in land use due to natural and anthrop...

The objective of this work is the study of spatial variations of the different phosphorus forms, collected from 56 surficial sediment samples which were performed during four seasons in spring, summer, autumn 2013, and winter 2014, such as inorganic forms (Fe (OOH)-P and CaCO3-P) and organic forms (ASOP et ROP), in the retaining of Sidi Chahed dam...

The Tafilalet plain in Morocco is a very rich ecosystem. It presents enormous ecological and natural values, such as groundwater and agricultural soil; however, it is undergoing rapid changes due to natural and anthropogenic factors, where soil salinity constitutes one of the major problems. In this context, remote sensing data/techniques used to m...

Water resources in the area of Essaouira, like other regions of Morocco, have experienced a significant drop in quality and quantity. This situation has led to the reduction of agricultural productivity and the degradation of several ecosystems. Topographic, morphological, hydrographic and climatic characterization and surface geology have influenc...

The purpose of this study is to map, identify and assess the impact of pollution on groundwater quality in rural areas of the city of Sebaa Ayoune (Fez-Meknes Region, Morocco). It is based on the use of Geographic Information Systems (GIS) and the spatial-temporal evolution of the physicalchemical and bacteriological parameters of the studied water...

The study of land use/land cover (LULC) has become an increasingly important stage in the development of forest ecosystems strategies. Hence, the main goal of this study was to describe the vegetation change of Azrou Forest in the Middle Atlas, Morocco, between 1987 and 2017. To achieve this, a set of Landsat images, including one Multispectral Sca...

The Saiss plain is one of the very important zones for the agricultural practice in Morocco, with a significant amount of water. Obviously, these resources have experienced degradation in the last years, with population growth, the development of the industrial activity in and the overexploitation in the agriculture. The main objective of this work...

Neural networks are mathematical and computer models to power nonlinear data that play a very important role in various scientific fields. They are specially used for automatic resolution of environmental problems. This study focuses on the prediction of nitrate (NO3-) and sulfate (SO42-) of lake water in the Moroccan Middle Atlas. Ifrah, Iffer and...

Facing the increase of surface water samples contaminated by ETMs, usually from the geochemical background, the emergence of new human diseases is worrying. To solve this problem, we have developed several models based on different learning algorithms qualified by high performance, using different transfer functions. We have shown that all the Neur...

Neural networks are mathematical and computer models to power nonlinear data that play a very important role in various scientific fields. They are specially used for automatic resolution of environmental problems. This study focuses on the prediction of nitrate (NO3-) and sulfate (SO 4 2-) of lake water in the Moroccan Middle Atlas. Ifrah, Iffer a...

La zone côtière du synclinal d'Essaouira (zone d'étude) est une zone où les précipitations ne dépassent pas 317 mm/an durant la période étudiée (1990-2015), avec une valeur d'ETP très élevée peuvent atteindre 766 mm. Le climat est de type aride à semi-aride avec une période sèche importante de six à sept mois. Les ressources en eau dans la zone d’E...

The present study aims to assess, identify and map the risk of flooding urban in the aim of protecting the city of Meknes (center of northern Morocco) from the flooding of the Oued Boufekrane which runs along the city from the south to the north. It is carried out using the tools modeling, of empirical formulae and functions integrated into the sof...

The aim of this study was to map area vulnerable to water erosion based on the The Priority Actions Programme/Regional Activity Centre (PAP/RAC) method combined with Geographic Information Systems (GIS) of the Oued Zgane Watershed, this watershed sheltering Ifrah lakes and Iffer Afourgagh, is located in the north of the Middle Atlas, Morocco, in th...

This work presents a prediction attempt of carbonate and detrital and biogenic elements in depending on granulometric size and mineralogical parameters in the late Quaternary deposits of mud volcanoes in the Gulf of Cadiz and the North Moroccan Atlantic margin. It is a kind of modeling based on the method of Artificial Neural Networks "RNA" type PM...

The topological Self-Organizing Maps of Kohonen and other methods of artificial intelligence are effective tools for modeling and solving environmental problems. In this study, we propose an approach to classify the annual physico-chemical parameters of subterranean waters in the F'kirina plain based on the artificial neural network type. The resul...

The management of household waste is a major environmental problem in all Moroccan communities. This is linked to several factors including the significant quantity of waste produced and inadequate infrastructure. These factors create a significant pressure on the environment and led to negative impacts on natural resources and the health and hygie...

The purpose of the present work and evaluation of the impact of pollution on the water quality of the Sidi Chahed dam (Meknes, Morocco) : it focuses on the analysis and evaluation of metal contamination of sediment by using an index of contamination which is the ratio of the metal content of the reference content (geochemical background), spatiotem...

The watershed of the Beht River is located northwest of Morocco and occupies the southwestern part of the Sebou basin. This study focuses on the sedimentological and physico-chemical analysis of recent deposits of dejection cone and flood plain of the middle Beht River. The results revealed that the sediments exhibit an alkaline pH, low levels of c...

The aim of this study was to map area vulnerable to water erosion based on the The Priority Actions Programme/Regional Activity Centre (PAP/RAC) method combined with Geographic Information Systems (GIS) of the Oued Zgane Watershed, this watershed sheltering Ifrah lakes and Iffer Afourgagh, is located in the north of the Middle Atlas, Morocco, in th...