T HIS WORK aimed at the assessment of the land suitability for surface and drip irrigation systems in a part of west Matrouh area, northwestern coast of Egypt. For establishing this target, a digital elevation model (DEM) and SENTENAL-2 image were used for identifying the physiographic units of the studied area. The integration between satellite image and soil survey using Arc-GIS10.9 software was done to produce the different maps of this work. These properties were used for assessment the land suitability. The studied area have nine landform units, including coastal plain, alluvial plain, sloping area, escarpment, coarse valley inner, coarse valley outer, low piedmont, Moderately high piedmont and high piedmont. Thirty-one soil profiles were selected to represent these different landform units and described morphologically .Soil samples were collected according to the vertical variations of each profile for physiochemical properties and analyzed. Results of land suitability assessment indicated that, the studied soils could be categorized as suitable (S) and currently not suitable (N1) for surface irrigation. Marginally suitable soils (S3) covered nearly 64% of the total area, while the remaining area was occupied by moderately suitable soils (S2) and those of N1 class (31%). The most limiting factors are texture, soil depth, drainage and excess of CaCO 3 content. The land suitability assessment for drip irrigation system indicated that, the soils are highly suitable (S1) in 2% of the area, moderately suitable in 56% and marginally suitable in 42% of the area. This shows that,the drip irrigation is more benefit than the surface irrigation in this area.

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The main objective of this study is to integrate GIS and field work to assess monitor some soil properties in the period 1980 -2017, field work involved digging pits and carrying out morphological examination and obtain samples. Updating the digital soil maps were generated using the database collected from field work and lab analysis. Soil salinity showed that highly saline soil decreased from 6583.3 ha (15669 Fed.), 16.4% to 5063.8 ha (12050 Fed.) 12.6%. Such improvement was due to soil reclamation. Decision makers should continue carrying out reclamation operations an area of 3895 ha (9270 Fed.) 9.7% from total area prone to salinization. An area of 3284.4 ha (7817Fed.) 8.2% suffer from shallow water table. Attention must be paid to 19778 ha ((47072 Fed.) 49.1% to prevent water table from rising. these soils showed no alkalinity for 50.2 ha (119.5 Fed.) Which need to improvement urban encroachment on the fertile soils affected 4.2 to 6.5% of the whole area in 1980 and 2017 respectively.

Purpose: A comprehensive monitoring and evaluation study was conducted on wells, water table and drainage water for water quality index. The study aimed to achieve a sustainable integrated management for water and soil at the study area. Methodology: Assessment and evaluation of water samples were: Evaluate the physic- chemical properties; Discuss the Hydro chemical coefficient; Assessment of the appropriate use of water quality such as permeability index (PI) and Kelly's indicator (KI); Water quality identification and assessment through calculate of WQI;  It was conducted various assessments of the elements within the water, such as the contamination factor (CFi); geo-accumulation index (Igeo) and the potential ecological risk index (RI).   Findings: The results shown that the dominance of Na+ cation and Cl- anions due to the influence of marine sediments on water elements which resulted in increased the mention  ions in drainage water> water table> wells. TDS values of wells, water tables and drainage water were no detected, 2374 to 9088 and 3641.6 to 13952mg L-1, respectively and RSC values of water samples were not significant. KI indicated that the well water is safe for drinking and the water table and drainage water are not acceptable for drinking. PI indicated that the suitability of water to be used in agriculture. WQI confirmed that the water is highly appropriated for Olive's tree and Palms cultivation. CFi indicated that the wells gave low to moderate contamination of Mn, Cu and B while, the Fe, Zn and Si concentrations were low. A very high degree of contamination by Fe, Mn, Zn, Cu and B were observed in water tables; however Si concentration was low to considerable degree. Generally, drainage water gave a very high degree of contamination with Mn, Cu, and B, whereas the concentration of Fe, Zn and Si were low, moderate and considerable degree. Analytical modeling proved that the Igeo values for Mn, Zn, Cu and Si were assigned to Class 0 for water sources at study area. RI indicated the wells and water table samples (exception of Cu was moderate to high) were slightly risk as well as the RI of drainage water samples was low risk. Contribution to theory, practice and policy: The results provided the relationships between the water resources assessment and water quality management, and to ensure their environmental reflections such as (contamination factor (CFi); geo-accumulation index (Igeo); the potential ecological risk (RI)), with the safe use of water based on its properties. Keywords: Hydro chemical coefficient; permeability index (PI); Kelly's indicator (KI); water quality index (WQI); contamination factor (CFi); geo-accumulation index (Igeo); the potential ecological risk (RI).

Context: Malignant melanoma of the mucous membranes of the nasopharynx is extremely rare. Despite improved diagnostic capabilities, these lesions are often diagnosed at an advanced stage and the prognosis is poor, in part related to the high rate of recurrence and metastasis. Case Presentation: We report one (01) case of relapse of a malignant mucous melanoma of the nasopharynx, four (04) years after complete conjunctival resection in a fifty (50) year old woman. Before the signs of call for epistaxis, an X-ray workup performed showed a nasopharyngeal tumor, followed by surgical resection with bilateral cervical lymph node dissection. Histology reveals a malignant melanoma without lymph node involvement. Adjuvant radiotherapy was delivered. The control by emission of positron (PET) at six (06) months after the end of adjuvant treatment did not find any lesions. Conclusion: To our knowledge, this is the first case report of a diagnosis of nasopharyngeal melanoma after four (04) years of complete remission. In view of the aggressive high rate of recurrence and metastasis, close monitoring and radiological workup at the slightest sign of calling should be required. Thus, the diagnosis will be made at an early stage which could improve the prognosis.