The hydrostatic root
hydraulic conductivity ([k.sub.root]) was determined by measuring the steady state flow at four pressures (0.1; 0.2; 0.3; and 0.4 MPa).
For this purpose, some experiments are conducted to study the behavior of the
hydraulic conductivity of a sand-clay mixture.
macro-pores and
hydraulic conductivity) using physical amendments for facilitating salt leaching and thus creating a better condition for establishing salt-tolerant plants (halophytes), which can be used as fodder for livestock.
Effect of conservation agriculture on water holding capacity (WHC),
hydraulic conductivity (Kfs) and matric flux potential (Im) of soil in 0-15 cm depth under rice-wheat cropping.
In this study, the
hydraulic conductivity tests were performed after drying and wetting of samples to a range of matric suctions between 1 and 60 kPa.
Hydraulic conductivity of compacted kaolin-sand specimens under high hydraulic gradients.
where [K.sub.s] is the saturated
hydraulic conductivity. [K.sub.r] (h) is the relative
hydraulic conductivity and it is a function of the pressure head which makes the Richards equation highly nonlinear.
Because of the physical characteristics of this soil, it could be said that the flow is applied in piston flow and the other hypotheses suggested by Green-Ampt, so the decrease in the quality of performance from the models is attributed to the use of an altered sample of soil, which could not be the most advisable way to estimate the
hydraulic conductivity at saturation in the laboratory for soils with high contents of organic matter, and to the use of equations and a database that also do not contemplate soils with high contents of organic matter.
Benson and Boutwell [18] investigated compaction conditions and scale dependent
hydraulic conductivity of compacted clay liners.
Cline, "Effect of soil properties on unsaturated
hydraulic conductivity pore- interaction factors," Soil Science Society of America Journal, vol.
All of the studies cited indicated that the negative impacts of K and Mg on the saturated soil
hydraulic conductivity place them between the extremes of Na as the worst soil dispersant and calcium (Ca) as the best soil flocculant: Na > K > Mg > Ca.