Ahmed Ali Ahmed El-Khatib اد/ احمد الخطيب

Professor -

Faculty of science

Address: سوهاج ، مصر



Publications Which contain the keyword: Egypt

2018-09-23 20:10:57 Keywords Water management, Egypt, Groundwater, Water resources,
Overview of water resources and requirements in Egypt; the factors controlling its management and development
Egypt covers very arid regions situated between the Sahara and Arabian deserts. It is extremely dependant on the River Nile as the country hardly has any other fresh water resources. Rainfall is very rare, except for a very small trip along the coast of the Mediterranean. Fossil groundwater is available in parts of the Western and Eastern Deserts and Sinai. ... Read more

2018-09-28 08:56:22 Keywords Rhipicephalus sanguineus, , Tick, dog, Egypt, Epidemiology,
Epidemiological Study on Brown Dog Tick Rhipicephalus sanguineus at Sadat District, Egypt
Abstract This work aimed to study the epidemiological status of Rhipicephalus sanguineus ticks in dogs at Sadat district, Mid-Delta, Egypt. During the period elapsed in-between September- 2015 and August- 2016, a total of 380 dogs (190 stray dogs, 130 animal guard dogs and 60 household dogs) were examined for the presence of hard ticks. Results showed that; 89.4% (340/380) dogs ... Read more

Microscopic and IFAT Based Incidence of Sarcocystis in Naturally Infected Buffaloes (Bubalus bubalis) at Sohag, Egypt
Abstract The aim of the present work was to detect the incidence rate of Sarcocystis spp. from Egyptian Water Buffaloes (Bubalus bubalis) in Sohag governorate, Egypt. Blood and muscle samples (145 each) were collected from neighborhood abattoirs. S. buffalonis 33.8%, S. levinei 14.48% and S. fusiformis 0.41% were recognized by microscopic examination and confirmed by indirect immunofluorescence antibody technique (IFAT). ... Read more

Using generic and pesticide DRASTIC GIS-based models for vulnerability assessment of the Quaternary aquifer at Sohag, Egypt
Groundwater resources in the Sohag area, Egypt are currently threatened by contamination from municipal and industrial activities, and agricultural pesticides. To cope with the growing population, there has been development in the desert zone on both sides of the Nile Valley including agricultural investment areas, wastewater disposal sites, new urban areas, and industry. Use of agrochemicals in the old cultivated ... Read more

Meandering and bank erosion of the River Nile and its environmental impact on the area between Sohag and El-Minia, Egypt
The present work deals with meandering and bank erosion of the River Nile of Egypt and its environmental impact between Sohag and El-Minia, Egypt. The study depends on using Landsat imagery acquired on 1987–2000 and field observations. Field observations, remote sensing, and GIS analysis and sinuosity index were used in this study to investigate river meandering and the associated processes ... Read more

Using lithologic modeling techniques for aquifer characterization and groundwater flow modeling of the Sohag area, Egypt
Three dimensional lithologic modeling techniques have been used for detailed characterization and groundwater flow modeling of the Quaternary aquifer system of the Sohag area, Egypt. Well log data were used for building the lithologic model using RockWorks. A groundwater flow model, facilitated by MODFLOW 2000, was built using results of the lithologic model. The obtained lithologic model honored the well ... Read more

Hydrochemical evolution and variation of groundwater and its environmental impact at Sohag, Egypt
Groundwater resources of Sohag, Egypt are currently threatened by contamination from agricultural and urbanization activities. Groundwater in Sohag area has a special significance where it is the second source for fresh water used for agricultural, domestic, and industrial purposes. Due to growing population, agriculture expansion, and urbanization, groundwater quality assessment needs more attention to cope with the increasing water demand ... Read more

2018-09-14 16:31:02 Keywords Groundwater contamination, Quaternary aquifer, Qena, Egypt,
Degradation of groundwater quality of quaternary aquifer at Qena, Egypt
Qena area, Upper Egypt has a limited water resources represented by the River Nile, irrigation canals and groundwater resources. The Quaternary groundwater aquifer is the main water source in the study area. Urbanization and agricultural activities in the study area constitute the main pollution sources of groundwater. Pollution sources in the study area include mixing from wastewater and agrochemicals from ... Read more

2018-09-14 16:33:34 Keywords Landuse change, monuments, Luxor, Egypt,
Land use change and deterioration of Pharaonic monuments in Upper Egypt
Pharaonic monuments in Upper Egypt are currently threatened by environmental impacts including the rise of groundwater table, seepage of drainage and sewage water from cultivated lands and surrounding houses as well as salinity problems. These problems are mainly due to change of land use since construction of High Dam in 1968. land use changes include expansion of old cultivated lands, ... Read more

2018-09-14 16:38:08 Keywords Nitrates, Groundwater, Nile Valley, health impact, Sohag, Egypt,
The present study is destined to measure the nitrate levels of groundwater in Sohag Governorate aiming to determine their possible sources and evaluate their environmental and health impact. 17% of the analyzed samples have NO3-levels go over the MAL. Potentially harmful levels of NO3-exceeding nearly four times higher than the maximum allowable limit (MAL) for drinking water (45 mg/l) were ... Read more