abstract due to the importance of using clay soil in many constructive projects such as, road foundation, irrigation canals and related hydraulic structures and etc., improvement of the physical and mechanical soil properties has been the main interest of the geo-technique specialists for years. in this regard different methods such as mixing clay soil with lime or cement have been used. it has...

Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Groundwater in the Triassic Sherwood Sandstone aquifer, Liverpool, UK, has locally elevated chloride concentrations (∼4000 mg/l) in parts of the coastal region although there is freshwater right up to the coast line in other areas. The aqu...

Abstract This experiment was conducted to determine the effect of kaolin clay application and deficit irrigation on quantitative characteristics pumpkin in a field located Siahbaz village Khoy, Iran. In order investigate yield components ( Cucurbita pepo L.), this experimental considered. An performed with at four levels (complete irrigation, from shoot stage, flowering stage seed filling stage...

HGmod is a computer program that builds on stochastic realizations of porosity fields to derive electrical conductivity, dielectric permittivity and hydraulic permeability models. The presence of clay, the influence of salinity as well as temperature of the fluid of imbibition are taken into account in the underlying formulations. The saturated and unsaturated zones are also considered through ...

An incubation experiment was conducted to study the effect of clay content and composition on organic nitrogen mineralization. The measured mineralization from alfalfa residues, enzyme activities, microbial biomass in mixtures sand, kaolinite, non-layered colloids (NLCs) with sand as a control. found that contents kaolinite NLCs increased, activity decreased, but increased. maximum decrease 88....

Binary mixed soils, containing coarse sand particles with variable content of fines (fine sand, silt, or clay) are important for several environmental and engineering applications. The packing state (or porosity) such sand-fines mixtures controls physical properties as hydraulic conductivity. Therefore, developing an analytical model to predict porosity binary based on pure unmixed (endmembers)...