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Using USLE, GIS and remote sensing for the soil loss assessment in the National Park of Theniet El Had, Algeria Fellah, Sahnoun; Benzater, Benali; Guemou, Laïd; Hachemaoui, Anouar; Benzohra, Mohamed Nadjib; Elouissi, Abdelkader; Hamimed, Abderrahmane
Journal of Agriculture and Applied Biology Vol 5 No 2 (2024): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.05.02.04

Soil water erosion is one of the problems that affect the environment, agriculture and social life by threatening several land surfaces. The objective of this study is to use the USLE model, GIS and remote sensing (RS) to estimate the annual rate of soil loss by water erosion in the Theniet El Had National Park (THNP) which belongs to the mountainous ecosystem of Djebel El Meddad, located in the northwest of Algeria. The use of the USLE model takes into account the five factors controlling water erosion, namely: the rain erosivity (R) determined from the annual rainfall data, the soil erodibility (K) developed from soil survey data, the slope lengths (LS) generated by using DEM, the vegetation cover (C) by the use of RS data and erosion control management practices (P) by field trips. The integration of these factors made it possible to establish the quantitative map of the annual rate of soil loss varying between 0.02 and 55.10 (t/ha.year), with an average of around 6.64 (t/ha.year). Five erosion aggressiveness classes are used; very weak, weak, moderate, strong and very strong which represent a rate respectively of 23.70, 44.65, 22.72, 4.41 and 4.52 % of the study area surface. The areas with high and very high erosion rates are located in the north having a very rugged relief and low vegetation cover. This study can be used in the mountainous ecosystems and it will make it possible to set up priority intervention zones to combat the risk of water erosion.

Using USLE, GIS and remote sensing for the soil loss assessment in the National Park of Theniet El Had, Algeria Fellah, Sahnoun; Benzater, Benali; Guemou, Laïd; Hachemaoui, Anouar; Benzohra, Mohamed Nadjib; Elouissi, Abdelkader; Hamimed, Abderrahmane
Journal of Agriculture and Applied Biology Vol 5 No 2 (2024): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.05.02.04

Soil water erosion is one of the problems that affect the environment, agriculture and social life by threatening several land surfaces. The objective of this study is to use the USLE model, GIS and remote sensing (RS) to estimate the annual rate of soil loss by water erosion in the Theniet El Had National Park (THNP) which belongs to the mountainous ecosystem of Djebel El Meddad, located in the northwest of Algeria. The use of the USLE model takes into account the five factors controlling water erosion, namely: the rain erosivity (R) determined from the annual rainfall data, the soil erodibility (K) developed from soil survey data, the slope lengths (LS) generated by using DEM, the vegetation cover (C) by the use of RS data and erosion control management practices (P) by field trips. The integration of these factors made it possible to establish the quantitative map of the annual rate of soil loss varying between 0.02 and 55.10 (t/ha.year), with an average of around 6.64 (t/ha.year). Five erosion aggressiveness classes are used; very weak, weak, moderate, strong and very strong which represent a rate respectively of 23.70, 44.65, 22.72, 4.41 and 4.52 % of the study area surface. The areas with high and very high erosion rates are located in the north having a very rugged relief and low vegetation cover. This study can be used in the mountainous ecosystems and it will make it possible to set up priority intervention zones to combat the risk of water erosion.

Groundwater quality assessment using groundwater pollution index (PIG) and non-carcinogenic human health risk assessment of fluoride and nitrate (HHR) in a semi-arid region of Mascara (northwestern of Algeria) Benamina, Benyelkhlef; Bentabet, Abdelkader; Azzaz, Habib; Dahmani, Ali; Hamimed, Abderrahmane
Journal of Degraded and Mining Lands Management Vol. 12 No. 3 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.123.7705

This article discusses nitrate and fluoride contamination and potential health risks for men, women, and children in the Mascara region (northwestern Algeria). To achieve this objective, the Groundwater Pollution Index (PIG) was used to assess the health risks caused by fluoride and nitrates in water. The concentration of nitrate varied, between 2 and 144 mg/L, was observed, with 44% of samples exceeding the WHO permitted limit of 50 mg/L. The study revealed that groundwater with high F concentration is found in evaporite formation as well as cultivated soils. In the studied points, fluoride concentrations range from 0.06 to 3.06 mg/L, with 11% of groundwater exceeding the fluoride guidelines (1.5 mg/L). However, 52%, 58%, and 61% of the region's waters are considered to be at high risk for men, women, and children, respectively, according to the distribution of HQNO3 risk quotient values. The HQF values ??were highest for children (an average of 0.60) and women (an average of 0.52), followed by the lowest values ??for men (an average of 0.45. HHRA results show that 69% of the region's water is considered to pose a high risk for men and women and 78% children respectively. It was observed that nitrate levels have a greater impact on the waters of the region. The calculated PIG values ??range from 0.35 to 1.15, which classifies 95% of the current study area in the insignificant pollution zone (PIG: < 1.0), and the rest (5%) in the low pollution zone (PIG: 1.0 to 1.5).

Estimation of vulnerability to pollution of groundwater of agricultural origin by application of the GOD and SI models in the Ghriss plain (North-West Algeria) Khelfi, Messaouda; Benslimane, Mohammed; Hamimed, Abderrahmane
Journal of Agriculture and Applied Biology Vol 6 No 2 (2025): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.06.02.04

Assessing groundwater sensitivity in areas contaminated by agri-cultural pollution is a complex task for groundwater resource managers. The Ghriss plain (north-western Algeria) is the basis of agricultural development based on diversified crops, irrigated from a local water table of Plio-Quaternary age, considered to be one of the country’s most important reservoirs. In recent years, the overuse of nitrogenous fertilizers and various phytosanitary products, combined with wastewater discharges, has led to the appearance of traces of chemical elements exceeding drinking wa-ter standards, and to a worrying risk of water quality deteriora-tion. This study aims to measure the different categories of vul-nerability to migration of chemical inputs through the unsaturated zone, to preserve groundwater contamination. The approach con-sists of applying two universal methods: the GOD model and the SI model (Susceptibility Index). The mapping of the two models shows that GOD represents a low concentration of measured ni-trate ions, while SI attributes a high pollution dispersion to the unsaturated zone. From this comparison, the GOD method indi-cates the presence of four classes of vulnerability: high 1%; medi-um 70%; low 28% and very low 1%. On the other hand, the SI comparison shows two classes of vulnerability to pollution: very high to high 72% to 23%; medium to very low 2% to 3%. From this comparative study, we deduce that SI gives us a true picture of the pollution phenomena likely to occur, taking into account the nature of the land use, hence its interest in a more accurate esti-mation of unsaturated zones' vulnerability to groundwater pollu-tion by nitrates.

Estimation of vulnerability to pollution of groundwater of agricultural origin by application of the GOD and SI models in the Ghriss plain (North-West Algeria) Khelfi, Messaouda; Benslimane, Mohammed; Hamimed, Abderrahmane
Journal of Agriculture and Applied Biology Vol 6 No 2 (2025): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.06.02.04

Assessing groundwater sensitivity in areas contaminated by agri-cultural pollution is a complex task for groundwater resource managers. The Ghriss plain (north-western Algeria) is the basis of agricultural development based on diversified crops, irrigated from a local water table of Plio-Quaternary age, considered to be one of the country’s most important reservoirs. In recent years, the overuse of nitrogenous fertilizers and various phytosanitary products, combined with wastewater discharges, has led to the appearance of traces of chemical elements exceeding drinking wa-ter standards, and to a worrying risk of water quality deteriora-tion. This study aims to measure the different categories of vul-nerability to migration of chemical inputs through the unsaturated zone, to preserve groundwater contamination. The approach con-sists of applying two universal methods: the GOD model and the SI model (Susceptibility Index). The mapping of the two models shows that GOD represents a low concentration of measured ni-trate ions, while SI attributes a high pollution dispersion to the unsaturated zone. From this comparison, the GOD method indi-cates the presence of four classes of vulnerability: high 1%; medi-um 70%; low 28% and very low 1%. On the other hand, the SI comparison shows two classes of vulnerability to pollution: very high to high 72% to 23%; medium to very low 2% to 3%. From this comparative study, we deduce that SI gives us a true picture of the pollution phenomena likely to occur, taking into account the nature of the land use, hence its interest in a more accurate esti-mation of unsaturated zones' vulnerability to groundwater pollu-tion by nitrates.

Effect of pulsed electric field on yield and absorption of Basil essential oil Baghdad, Abdelkader; Elkebir, Abdelkader; Miloudi, Kaddour; Kherbouche, Fouad; Benmimoun, Youcef; Hamimed, Abderrahmane
Journal of Agriculture and Applied Biology Vol 6 No 2 (2025): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.06.02.06

The effect of applying pulsed electric field (PEF) treatments on Basil leaves for essential oil extraction was studied. After treatment with pulsed electric field (PEF) with an intensity of 2 kV.cm-1, specific energy of 5kJ.kg-1 and 60 min of distillation, the yield of Basil EO increased from 0.63% (Control) to 0.82%, an increase of 30.16%. However, when basil leaves were treated with very high specific energy PEF (50 kJ.kg-1) a non-significant increase in EO yield compared to the control was observed. This experimental study reports the results regarding the effect of pulsed electric field (PEF) treatment on the absorbance of Basil EO. The study allowed us to recognize an increase in EO absorption by the application of PEF with moderate specific energies. This has significance in quality control, which is an essential factor for the use of essential oils in various applications.

Effect of pulsed electric field on yield and absorption of Basil essential oil Baghdad, Abdelkader; Elkebir, Abdelkader; Miloudi, Kaddour; Kherbouche, Fouad; Benmimoun, Youcef; Hamimed, Abderrahmane
Journal of Agriculture and Applied Biology Vol 6 No 2 (2025): Journal of Agriculture and Applied Biology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jaab.06.02.06

The effect of applying pulsed electric field (PEF) treatments on Basil leaves for essential oil extraction was studied. After treatment with pulsed electric field (PEF) with an intensity of 2 kV.cm-1, specific energy of 5kJ.kg-1 and 60 min of distillation, the yield of Basil EO increased from 0.63% (Control) to 0.82%, an increase of 30.16%. However, when basil leaves were treated with very high specific energy PEF (50 kJ.kg-1) a non-significant increase in EO yield compared to the control was observed. This experimental study reports the results regarding the effect of pulsed electric field (PEF) treatment on the absorbance of Basil EO. The study allowed us to recognize an increase in EO absorption by the application of PEF with moderate specific energies. This has significance in quality control, which is an essential factor for the use of essential oils in various applications.

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