الفهرس 
Physiography position of the studied areaOnly 14 pages are availabe for public view
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Abstract
The current study was carried out to investigate the effect of some different depositional environments in North Nile Delta on their heavy metals (Cu, Zn, Co, Cr, Ni & Cd) content, fractionation, pollution and remediation. Ten soil profiles were chosen from different locations at El-Gharbia and Kafr El-Sheikh Governorates to represent the three depositional environments; fluvial (Typic tom fluvents), lacustrine (Fluvaquents) and marine (Typic torripsamments), Profiles No. (1, 6 and 9) represent fluvial, lacusbine and marine soils irrigated with fresh Nile water, respectively. Sever1 soil profiles represent fluvial soils (P2, p3, P4 & Ps), lacustrine soils (P7 & P8) and marine soils (Plo) have been irrigated for a long time with mixed wastewater (mixture of agricultural, sewage and industrial waters) from El-Gharbia main drain (Cotchaner drain). Three virgin soil samples represent the forecited depositional environments were selected as a reference for comparison. Also, samples of irrigation waters and plants were collected from the tested locations to achieve the objectives of this study. The morphological description and classification of the studied profiles were done. The chemical and physical properties of the soil profiles were detennined. The effect of different sources of irrigation waters (Nile water & wastewater) on the pollution of tested soils by heavy metals were evaluated. Also, the relationship between different depositional conditions in the tested profiles and both content and distribution of the studied metals throughout the soil profiles were estimated. Different chemical fractions of tested metals in the selected soil profiles were determined. The relationship between soil properties and the different fractions of metals were cstirnated. Also, response of the fluvial lacustrine and marine soils for irnmobilimtion of tested metals using some organic and inorganic soil amendments were examined. Finally, the ability of some plant species grown in the examined soils to decreasing the available amounts from