The vegetated filter strip model (VFSMOD) was used to investigate the effect of GreenAmpt infiltration parameters (found with different estimation techniques) on sediment and water trapping in vegetated filters of varying soil types. Field-measured and empirically-estimated infiltration parameters were compared. Field saturated hydraulic conductivity (Kk) values were calculated with an inverse ...

Abstract. Soil hydraulic properties are often derived indirectly, i.e. computed from easily available soil with pedotransfer functions (PTFs), when those needed for catchment, regional or continental scale applications. When predicted parameters used the modelling of state and flux water in soils, uncertainty values can provide more detailed information drawing conclusions. The aim this study w...

abstract pedotransfer functions (ptfs) are useful means of prediction many properties of the soil, and especially the hydraulic characteristics of this porous media. the main advantages of this functions, as compare to conventional methods used to directly estimate soil hydraulic properties, is that they are not time-cost consuming. different approaches such as classic linear and non linear reg...

Pedotransfer functions (PTFs) are empirical fits to soil property data and have been used as an alternative tool in situ measurements for estimating hydraulic properties the last few decades. PTFs of Saxton Rawls, 2006 (PTFs’S&R.2006) some most widely because their global aspect. However, yield more accurate results when trained locally. This study proposes a set agricultural developed sout...

Soil hydraulic properties, which are basically saturated and unsaturated conductivity water retention characteristics, remarkably control the main hydrological processes in catchments. Thus, adequate parameterization of soils is one most important tasks physically based catchment modeling. To estimate these choice PTFs a model often made without taking runoff characteristics into consideration....