بعض صفات التربة الفيزيائية والكيميائية المؤثـــرة فـي فشل التبطين بالكابيون لبزل الرزازة وعلى مستوى اداءه

Abstract

The field study of Razaz drainage project indicates ,after Collecting Soil samples from tow sides and its pad drainage with four anther locations ,that physical and chemical properties have significant effect on the failure of Gapyun. The result of mechanical analysis significant effect at 0.01 level for tow Percentages Silt and Clay Composed with sand percentage , when we analyzed that data by Randomized Complete Bloke Design ( RCBD) as well as Duncans test . Either chemical properties which clacked for determinations meq / 100 gram soil , meq / L and the later as percentage , indicate that Gapyun failure was affected by Cation exchange Capacity CEC , Electric Conductivity EC , exchangeable sodium ion, available sodium ion and exchangeable potassium ion for tow level 0.01, 0.05 , which are compared with HCO3 and Soil – PH that haven't any significant effect . These results were reached by the same analysis,(CRBD) and Duncans test .