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161 results on '"Ouessar, Mohamed"'

4. Spatiotemporal Rainfall Variations: Case Study of Wadi Koutine Watershed (South Tunisia)

Author

Ben Zaied, Mongi, Ouessar, Mohamed, Guied, Messaoud, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, O. Gawad, Iman, Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Chenchouni, Haroun, editor, Chaminé, Helder I., editor, Khan, Md Firoz, editor, Merkel, Broder J., editor, Zhang, Zhihua, editor, Li, Peiyue, editor, Kallel, Amjad, editor, and Khélifi, Nabil, editor

Published
2022
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6. Impact of Subsurface Drip Irrigation on Water Distribution, Photosynthetic Production and Crop Yield in Olive Orchard in Southern Tunisia

Author

Sghaier, Abderrahman, Boujnah, Dalenda, Ouessar, Mohamed, Ben Ayed, Rayda, Naggaz, Kamel, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, O. Gawad, Iman, Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Chenchouni, Haroun, editor, Chaminé, Helder I., editor, Khan, Md Firoz, editor, Merkel, Broder J., editor, Zhang, Zhihua, editor, Li, Peiyue, editor, Kallel, Amjad, editor, and Khélifi, Nabil, editor

Published
2022
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7. Physicochemical Adsorption Properties of Heavy Metals by Different Clay Combinations in the Context of Phosphogypsum Storage

Author

Ben Moussa, Kawther, Eturki, Saifeddine, Tack, Philip, Van Poucke, Rinehart, Budet, Samuel, De Grave, Johan, Moussa, Mohamed, Ouessar, Mohamed, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, O. Gawad, Iman, Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Chenchouni, Haroun, editor, Chaminé, Helder I., editor, Khan, Md Firoz, editor, Merkel, Broder J., editor, Zhang, Zhihua, editor, Li, Peiyue, editor, Kallel, Amjad, editor, and Khélifi, Nabil, editor

Published
2022
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8. Assessing Land Degradation Neutrality (LDN) in Southeastern Tunisia Based on Earth Observation Data and Open Source Applications

Author

Bayouli, Olfa Terwayet, Essifi, Bouajila, Ouessar, Mohamed, Förstner, Ulrich, Series Editor, Rulkens, Wim H., Series Editor, Salomons, Wim, Series Editor, Ksibi, Mohamed, editor, Ghorbal, Achraf, editor, Chakraborty, Sudip, editor, Chaminé, Helder I., editor, Barbieri, Maurizio, editor, Guerriero, Giulia, editor, Hentati, Olfa, editor, Negm, Abdelazim, editor, Lehmann, Anthony, editor, Römbke, Jörg, editor, Costa Duarte, Armando, editor, Xoplaki, Elena, editor, Khélifi, Nabil, editor, Colinet, Gilles, editor, Miguel Dias, João, editor, Gargouri, Imed, editor, Van Hullebusch, Eric D., editor, Sánchez Cabrero, Benigno, editor, Ferlisi, Settimio, editor, Tizaoui, Chedly, editor, Kallel, Amjad, editor, Rtimi, Sami, editor, Panda, Sandeep, editor, Michaud, Philippe, editor, Sahu, Jaya Narayana, editor, Seffen, Mongi, editor, and Naddeo, Vincenzo, editor

Published
2021
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9. Land Degradation Assessment in the Dry Areas of Tunisia Case Study: Wadi Koutine Watershed

Author

Ben Zaied, Mongi, Ouessar, Mohamed, Guied, Messaoud, Kerdi, Hedi, Förstner, Ulrich, Series Editor, Rulkens, Wim H., Series Editor, Salomons, Wim, Series Editor, Ksibi, Mohamed, editor, Ghorbal, Achraf, editor, Chakraborty, Sudip, editor, Chaminé, Helder I., editor, Barbieri, Maurizio, editor, Guerriero, Giulia, editor, Hentati, Olfa, editor, Negm, Abdelazim, editor, Lehmann, Anthony, editor, Römbke, Jörg, editor, Costa Duarte, Armando, editor, Xoplaki, Elena, editor, Khélifi, Nabil, editor, Colinet, Gilles, editor, Miguel Dias, João, editor, Gargouri, Imed, editor, Van Hullebusch, Eric D., editor, Sánchez Cabrero, Benigno, editor, Ferlisi, Settimio, editor, Tizaoui, Chedly, editor, Kallel, Amjad, editor, Rtimi, Sami, editor, Panda, Sandeep, editor, Michaud, Philippe, editor, Sahu, Jaya Narayana, editor, Seffen, Mongi, editor, and Naddeo, Vincenzo, editor

Published
2021
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16. Classification Methods for Detecting and Evaluating Changes in Desertification-Related Features in Arid and Semi-arid Environments

Author

Afrasinei, Gabriela Mihaela, Melis, Maria Teresa, Buttau, Cristina, Arras, Claudio, Zerrim, Amar, Guied, Messaoud, Ouessar, Mohamed, Essifi, Bouajila, Zaied, Mongi Ben, Jlali, Amor, Jarray, Hanen, Ghiglieri, Giorgio, Ouessar, Mohamed, editor, Gabriels, Donald, editor, Tsunekawa, Atsushi, editor, and Evett, Steven, editor

Published
2017
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30. Remote sensing techniques for water management and climate change monitoring in drought areas: case studies in Egypt and Tunisia.

Author

Ramat, Giuliano, Santi, Emanuele, Paloscia, Simonetta, Fontanelli, Giacomo, Pettinato, Simone, Santurri, Leonardo, Souissi, Najet, Da Ponte, Emmanuel, Abdel Wahab, Mohamed M., Khalil, Alaa A., Essa, Yassmin H., Ouessar, Mohamed, Dhaou, Hanen, Sghaier, Abderrahman, Hachani, Amal, Kassouk, Zeineb, and Lili Chabaane, Zohra

Subjects
SYNTHETIC apertures, WATER management, REMOTE sensing, DROUGHTS, SYNTHETIC aperture radar, SOIL moisture
Abstract

This study focused on monitoring the water status of vegetation and soil by exploiting the synergy of optical and microwave satellite data with the aim of improving the knowledge of water cycle in cultivated lands in Egyptian Delta and Tunisian areas. Environmental analysis approaches based on optical and synthetic aperture radar data were carried out to set up the basis for future implementation of practical and cost-effective methods for sustainable water use in agriculture. Long-term behaviors of vegetation indices were thus analyzed between 2000 and 2018. By using SAR data from Sentinel-1, an Artificial Neural Network-based algorithm was implemented for estimating soil moisture and monthly maps for 2018 have been generated to be compared with information derived from optical indices. Moreover, a novel drought severity index was developed and applied to available data. The index was obtained by combining vegetation soil difference index, derived from optical data, and soil moisture content derived from SAR data. The proposed index was found capable of complementing optical and microwave sensitivity to drought-related parameters, although ground data are missing for correctly validating the results, by capturing drought patterns and their temporal evolution better than indices based only on microwave or optical data.. [ABSTRACT FROM AUTHOR]

Published
2023
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33. Integrated Environmental and Socio-economic Modeling Using LEIS for Desertification Monitoring and Assessment in Menzel Habib Observatory (South Tunisia)

Author

Sghaier, Mongi, Ouessar, Mohamed, Loireau, Maud, Leibovici, Didier, Bennour, Laroussi, Fetoui, Mondher, Abed, Mohamed Ali Ben, Belgacem, Azaiez Ouled, Tbib, Amor, Taamallah, Houcine, De Laitre, E., Boukhchina, R., Ouerchefani, Dalel, Dhaou, Hanen, Lee, Cathy, editor, and Schaaf, Thomas, editor

Published
2008
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39. Generation of Potential Sites for Sustainable Water Harvesting Techniques in Oum Zessar Watershed, South East Tunisia

Author

Abdeladhim, Mohamed Arbi, Fleskens, Luuk, Baartman, Jantiene, Sghaier, Mongi, Ouessar, Mohamed, Ritsema, Coen J., Abdeladhim, Mohamed Arbi, Fleskens, Luuk, Baartman, Jantiene, Sghaier, Mongi, Ouessar, Mohamed, and Ritsema, Coen J.

Abstract

Water harvesting techniques (WHTs) are important climate change adaptation measures to better manage rainwater for domestic and agricultural purposes, but which WHT to plan where is subject to sustainability considerations. Moreover, suitability of different WHTs varies from one location to another, depending on physical and socio-economic conditions. This study aimed to identify suitable sites for WHTs taking into account stakeholders’ sustainability criteria. In a participatory assessment framework, Geographic Information Systems and the “Simple Multi-Attribute Rating Technique” were combined to generate suitability maps and to guide sustainable WHTs investments. Steps included the calculation of a sustainability index for a set of traditional and newly introduced WHTs from the perspective of two stakeholder groups, farmers and decision-makers, and its integration with layers of biophysical constraints. An application of the framework in the Oum Zessar watershed, southeast Tunisia, shows that traditional techniques are the most suitable and sustainable for farmers and fall within the highly suitable class in 76.4% of the total area, while decision-makers prefer innovative techniques that are highly suitable in 80.4% of the watershed. The framework offers a scalable transparent process for knowledge integration in support of WHT investment decisions that can be adapted to other dryland areas.

Published
2022

42. Stability and maturity indexes of organic fraction compost.

Author

Lamourou, Habib, Karbout, Nisaf, Zriba, Zied, Zoghlami, Inès Rahma, Ouessar, Mohamed, and Moussa, Mohamed

Subjects
COMPOSTING, POULTRY manure, WASTE products, ORGANIC wastes, SCANNING electron microscopy
Abstract

Composting is an environmentally friendly way to turn wastes into useful product (compost). This study aimed to monitor various chemical, physical, and biological parameters over the course of the co-composting of three organic compounds. In this context, 55 kg (55%) of green waste (GW) were co-composted with 40 kg (40%) of poultry manure at 40 kg (40%) and 5 kg (5%) green waste biochar (GWB). The monitoring of this experiment continues until the final product is stable. According to several previous studies, it was generally agreed that it was better to employ a combination of multiple tests to be sure that the compost has really reached a state of maturity and stability. During this study, a series of tests were used to determine the maturity and stability of co-composting organic wastes for safe use. Tests used during this follow-up include the pile temperature, pile moisture, pH, total nitrogen, total carbon, C/N ratio, microbial activity (CO2 emission), germination index, and a scanning electron microscopy. According to the results of tests carried out during this experiment, the compost had attained maturity on the 54th day from the beginning of the composting. [ABSTRACT FROM AUTHOR]

Published
2023
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45. Water management and climate change monitoring in Tunisia and Egypt using remote sensing techniques

Author

Paloscia, Simonetta, primary, Fontanelli, Giacomo, additional, Pettinato, Simone, additional, Santi, Emanuele, additional, Ramat, Giuliano, additional, Da Ponte, Emmanuel, additional, Abdel-Wahab, Magdy, additional, Hesham, Yassmina, additional, Ouessar, Mohamed, additional, Dhaou, Hanen, additional, Kassouk, Zeineb, additional, and Chabane, Zohra Lili, additional

Published
2020
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49. Soil Erosion Estimates in Arid Region: A Case Study of the Koutine Catchment, Southeastern Tunisia.

Author

Ben Zaied, Mongi, Jomaa, Seifeddine, and Ouessar, Mohamed

Subjects
SOIL erosion, ARID regions, UNIVERSAL soil loss equation, SOIL conservation, WATER harvesting
Abstract

Soil erosion remains one of the principal environmental problems in arid regions. This study aims to assess and quantify the variability of soil erosion in the Koutine catchment using the RUSLE (Revised Universal Soil Loss Equation) model. The Koutine catchment is located in an arid area in southeastern Tunisia and is characterized by an annual mean precipitation of less than 200 mm. The model was used to examine the influence of topography, extreme rainstorm intensity and soil texture on soil loss. The data used for model validation were obtained from field measurements by monitoring deposited sediment in settlement basins of 25 cisterns (a traditional water harvesting and storage technique) over 4 years, from 2015 to 2018. Results showed that slope is the most controlling factor of soil loss. The average annual soil loss in monitoring sites varies between 0.01 and 12.5 t/ha/y. The storm events inducing the largest soil losses occurred in the upstream part of the Koutine catchment with a maximum value of 7.3 t/ha per event. Soil erosion is highly affected by initial and preceding soil conditions. The RUSLE model reasonably reproduced (R2 = 0.81) the spatiotemporal variability of measured soil losses in the study catchment during the observation period. This study revealed the importance of using the cisterns in the data-scarce dry areas as a substitute for the classic soil erosion monitoring fields. Besides, combining modeling of outputs and field measurements could improve our physical understanding of soil erosion processes and their controlling factors in an arid catchment. The study results are beneficial for decision-makers to evaluate the existing soil conservation and water management plans, which can be further adjusted using appropriate soil erosion mitigation options based on scientific evidence. [ABSTRACT FROM AUTHOR]

Published
2021
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