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Vegetation and Grazing in the St. Katherine Protectorate, South Sinai, Egypt
R Guenther
Egyptian Journal of Biology , 2005,
Abstract: Plants were surveyed in the St. Katherine Protectorate of South Sinai, Egypt. The most frequently recorded plant species include: Artemisia herba-alba, Artemisia judaica, Fagonia arabica, Fagonia mollis, Schismus barbatus, Stachys aegyptiaca, Tanacetum sinaicum, Teucrium polium and Zilla spinosa. Dominant plant families were Compositae, Graminae, Labiatae, and Leguminosae. Communities with a high grazing pressure had a lower overall plant vigour. A strong negative correlation was found between plant vigour and grazing pressure. Twelve plant families showed heavy grazing pressure, including Resedaceae, Caryophyllaceae, Polygalaceae, Juncaceae, Solanaceae, Geraniaceae, Ephedraceae, Globulariaceae, Urticaceae, Moraceae, Plantaginaceae, and Salicaceae.
Decay of the Sinai Well in D dimensions  [PDF]
A. J. Fendrik,M. J. Sánchez
Physics , 1994, DOI: 10.1103/PhysRevE.51.2996
Abstract: We study the decay law of the Sinai Well in $D$ dimensions and relate the behavior of the decay law to internal distributions that characterize the dynamics of the system. We show that the long time tail of the decay is algebraic ($1/t$), irrespective of the dimension $D$.
The Occurrence and Distribution of Soil Actinomycetes in Saint Catherine Area, South Sinai, Egypt  [PDF]
Samira R. Mansour
Pakistan Journal of Biological Sciences , 2003,
Abstract: An extensive study was carried out to investigate the occurrence and distribution of actinomycetes isolated from arid area, Saint Catherine, South Sinai, Egypt. Ten different soil samples were collected from different sites. Two hundred and eight actinomycetes cultures were isolated and identified. The existence of high population of actinomycetes, represented by total per gm soil, was significantly correlated (P<0.01) with organic matter and soil moisture percentages. The predominant genus in all soil samples was Streptomyces, which represented by 74 isolates. The second most common organism (50 isolates) was genus Nocardia. The other isolates were identified as Actinomadura, Nocardiopsis, Pesudonocardia, Rhodococcus, Micromonospora and Streptosporangium. Frequency of each genus was varied in each sample. Micromonospora isolates recorded in significantly higher count when the soil moisture increased. Genera diversity was varied which recorded the highest value in site 1 and site 8. Variation in the distribution of actinomycetes, expressed in frequency, richness and diversity of genera, indicate that climate in combination with soil properties play an important role in creation a specific niches for survival and propagation of actinomycetes.
GEOPHYSICAL CONTRIBUTION TO EVALUATE THE HYDROTHERMAL POTENTIALITY IN EGYPT: CASE STUDY: HAMMAM FARAUN AND ABU SWIERA, SINAI, EGYPT
Atya,Magdy A.; Khachay,Olga A.; Abdel Latif,Aiman; Khachay,Oleg Y.; El-Qady,Gad M.; Taha,Ayman I.;
Earth Sciences Research Journal , 2010,
Abstract: the geothermal potentiality in egypt has a minor significance in the aspects of the egyptians life, while the hydraulic and hydrocarbon resources are more convenient. however, some other applications for the geothermal activity such as direct warming, pools, and physiotherapy make the research for geothermal as requested. in the present work, two locations with rather good geothermal potentiality will be studied; these are hammam faraun and abu swiera (water temperature is about 70 °c; at sinai peninsula). the contribution of the geophysical techniques to evaluate such potentiality could be considered, as its capability to identify the reservoir characteristics and its implementation is acceptable. therefore, a geophysical survey program has been conducted in terms of seventeen vertical electrical soundings (ves) and two wide profiles of control source electromagnetic (csem) forward step at hammam faraun and two wide profiles of csem at abu swiera. the geophysical techniques yield information on the spatial distribution of electrical conductivity, which is the most sensitive parameter to fluids in the rocks. the analysis of the geophysical data, together with the field and geochemical studies lead to the conclusion that, the thermal water in the subsurface formations might be considered as the preferred cause of the high conductivity in the subsurface on/close to the boarder of tectonically active regions, particularly, where the anomalous conductivity is correlated with high heat flow and other geophysical and geological parameters.
GEOPHYSICAL CONTRIBUTION TO EVALUATE THE HYDROTHERMAL POTENTIALITY IN EGYPT: CASE STUDY: HAMMAM FARAUN AND ABU SWIERA, SINAI, EGYPT  [cached]
Atya Magdy A.,Khachay Olga A.,Latif Aiman Abdel,Khachay Oleg Y.
Earth Sciences Research Journal , 2010,
Abstract: The geothermal potentiality in Egypt has a minor significance in the aspects of the Egyptians life, while the hydraulic and hydrocarbonresources are more convenient. However, some other applications for the geothermal activity such as direct warming, pools, and physiotherapy make the research for geothermal as requested. In the present work, two locations with rather good geothermal potentiality will be studied; these are HammamFaraun and Abu Swiera (water temperature is about 70 °C; at Sinai Peninsula). The contribution of the geophysical techniques to evaluate such potentiality could be considered, as its capability to identifythe reservoir characteristics and its implementation is acceptable. Therefore, a geophysical survey program has been conductedin terms of seventeen vertical electrical soundings (VES) and two wide profiles of Control Source Electromagnetic (CSEM) forward step at HammamFaraun and two wide profiles of CSEM at Abu Swiera. The geophysical techniques yield information on the spatial distribution of electrical conductivity, which is the most sensitive parameter to fluids in the rocks. The analysis of the geophysical data, together with the field and geochemical studies lead to the conclusion that, the thermalwater in the subsurface formations might be considered as the preferred cause of the high conductivity in the subsurface on/close to the boarder of tectonically active regions, particularly, where the anomalous conductivity is correlated with high heat flow and other geophysical and geological parameters.
Applied Geological Studies of Some Sinai, Egypt Ore Deposits to Utilized as Extender Pigments for Paint Manufacture  [cached]
M. AW. Gaber,I.M. Hassanien
Advances in Petroleum Exploration and Development , 2011, DOI: 10.3968/j.aped.1925543820110101.008
Abstract: In this present study an investigation is carried out to search for the appropriate local substitutes for the imported paint pigments, samples collected from North, Central and South Sinai includes white sand, coal, quartz, kaolin, gypsum, limestone, chalk. The collected specimens were crushed and ground to powder varying in size between “5-50 um” for testing using laboratory mill. Several laboratory tests were accomplished to identify and evaluate the decorative and protective paint pigment including specific gravity, moisture content, pH value, oil absorption, x-Ray analysis, microscopic studies and others to prove that the selected local ores possess the required characteristics for pigments that can be utilized in producing the paint material in Egypt. The study indicates that the following local ores can be utilized as extender pigments to produce paint materials “calcium carbonate of south Sinai, white sand of Um Bogma, and gypsum of Ras Malaab. The estimated reserves of the studded ores give an indication of presence the sufficient quantities for stream production of the some paint pigments needed for Egyptian market. Key words: Field geology; Paint pigment; Extender pigment; Microscopic studies; X-ray analysis; Chemical analysis; Sinai; Egypt
A Multidisciplinary Approach to Mapping Potential Urban Development Zones in Sinai Peninsula, Egypt Using Remote Sensing and GIS  [PDF]
Hala A. Effat, Mohamed N. Hegazy
Journal of Geographic Information System (JGIS) , 2013, DOI: 10.4236/jgis.2013.56054
Abstract:

One of the main concerns of physical planning is the proper designation of suitable sites for feasible and sustainable land use. A main importance of such issue is that it withdraws attention to the necessity of adopting a multidisciplinary approach to the zoning and site selection problem. Egypt has a top priority objective to develop Sinai Peninsula and to create new sustainable and attracting communities that should ensure a stable, economic and sustainable environment in vast desert zones. Due to the difficulty in solving a zoning problem in a desert, the use of remote sensing and Geographic Information System (GIS) was to explore the desert potentials in the region. Five sub-models were created for five themes using Spatial Multicriteria Analysis (SMCA) and used as inputs to the final suitability model. These themes are: land resources, land stability, accessibility, cost of construction and land protection. A GIS-based model was designed following a sustainable development approach. Economic, social and environmental factors were introduced in the model to identify and map land suitable zones for urban development using Analytical Hierarchy Process (AHP). The suitability index map for urban development was produced by weighted overlay of the five sub-models themes. The most suitable zones for urban development in Sinai Peninsula amounted to 5327 square kilometers representing 17% of total area, whereas high suitable zones reached 40% indicating a high suitability of Sinai Peninsula lands for residing new urban communities.

 

LAND SUITABILITY SCENARIOS FOR ARID COASTAL PLAINS USING GIS MODELING: SOUTHWESTERN SINAI COASTAL PLAIN, EGYPT
Ahmed Mohamed Wahid,Marguerite Madden,Fikry Khalaf,Ibtehal Fathy
Journal of Urban and Environmental Engineering , 2009,
Abstract: Site selection analysis was carried out to find the best suitable lands for development activities in an example of promising coastal plains, southwestern Sinai, Egypt. Two GIS models were developed to represent two scenarios of land use suitability in the study area using GIS Multi Criteria Analysis Modeling. The factors contributed in the analysis are the Topography, Land cover, Existing Land use, Flash flood index, Drainage lines and Water points. The first scenario was to classify the area according to various gradual ranges of suitability. According to this scenario, the area is classified into five classes of suitability. The percentage of suitability values are 51.16, 6.13, 22.32, 18.49 and 1.89% for unsuitable, least suitable, low suitable, suitable and high suitable, respectively. The second scenario is developed for a particular kind of land use planning; tourism and recreation projects. The suitability map of this scenario was classified into five values. Unsuitable areas represent 51.18% of the study area, least suitable 16.67%, low suitable 22.85%, suitable 8.61%, and high suitable 0.68%. The best area for locating development projects is the area surrounding El-Tor City and close to the coast. This area could be an urban extension of El-Tor City with more economical and environmental management.
Drainage Management Problems Evaluation: Case Study Baloza and EL-Farama Drains, North Sinai, Egypt  [PDF]
Mohamed Gabr
Journal of Water Resource and Protection (JWARP) , 2019, DOI: 10.4236/jwarp.2019.116039
Abstract: Drainage management activities aim at maintaining the performance of drainage networks by assessing the major drainage management problems regarding sedimentation, bank erosion, vegetation, water quality, and biodiversity, to find appropriate solutions for channel improvement in order to increase agricultural productivity and maintain agricultural land and the surrounding environment. In this research, we evaluate the drainage management problems to the surface drains Baloza and EL-Farama in the cultivated Tina Plain region (21,000 hectares) North Sinai, Egypt to provide an accurate data to help decision-makers to know the status of maintenance of the watercourses and the need for improvement. For this, Intensive field investigations were carried out regarding a hydrographic survey of the actual drains cross-section using total station and aqua sounder devices, visual stream bank erosion survey, and vegetation survey. In addition, monthly water samples from the drainage water were treated and analyzed for physical and chemical, bacteriological related indices. The results showed, the studied drains suffer from sedimentation, vegetation infection, and bank erosion in some reaches and need remedy. Estimated sedimentation in EL-Farama Drain was 34369 m3/year and in Baloza Drain 29153 m3/year; bank slope failures upstream and downstream pump stations were recorded; the average weed infection ratio for both drains was 30%. The results of water quality parameters showed acceptable concentrations for BOD, DO, NO3, and total coliform according to Egypt decree, 92/2013 for the protection of the Nile River and its waterways from pollution, except TDS (more than 10,000 mg/L). The drainage water was classified as high saline and it was unacceptable for irrigation. Therefore, the author recommends to remove sedimentation and vegetation every 2 years by mechanical methods, applying gabions lining to prevent bank erosion, and treating drainage water using wetland system and utilizing the treated wastewater in fish farming.
Fungal Leaching of Uranium from its Geological Ores in Alloga Area, West Central Sinai, Egypt
M. A. Hefnawy,M. El-Said,M. Hussein,Maisa, A. Amin
Journal of Biological Sciences , 2002,
Abstract: Seven fungal species were isolated from two uranium ores in Alloga region, west central Sinai, Egypt. They were identified as, Aspergillus flavus, Penicillium brevicompactum, P. oxalicum, P. purpurescens, P. lividum, Aspergillus terreus and P. spinulosum. They were tested for bioleaching activity of uranium from its ores, A. terrus and P. spinulosum showed a high leaching activity. The growth of these fungi highly affected by the presence of the ore in the growth media. The amount of uranium solubilized by A. terreus and P. spinulosum was increased with increasing ore concentrations in the growth media, reaching its maximum at 4%(w/v). Whereas, the highest percentage of uranium released by both fungi was obtained at 1%(w/v), at this concentration the released uranium being 75 and 81.5% respectively for ore (OS1) and 72.8 and 77.6% respectively for the second ore (OS2). The best leaching occurs when the final pH shifts toward acidity. The biosorption of released uranium by the fungal mycelium was also increased with increasing ore concentrations in the growth media. One gram dry mycelium of A. terreus and P. spinulosum could bind approximately 9.6 and 14.2% respectively, at 1% of OS1 and 10.8 and 17% respectively, at the same concentration of OS2 from the total uranium solubilized during bioleaching process.
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