A wetting soil water characteristic curve (SWCC w ) is necessary for understanding and interpreting the re-distribution of infiltrated rainwater, percolation rate, contaminant transport. Direct determination SWCC tedious needs destructive sampling invasive sensor installation. This study demonstrates an indirect method determining based on infiltration measurements using a mini disc infiltromet...

Water infiltration into the soil profile and runoff losses in arable lands are related to the condition of the top layer. The tillage treatment (included no-till) of the top layer plays a key role in changes of the hydro-physical properties, mainly saturated hydraulic conductivity (K) of the treated layer. This paper is focused on the influence of repeated tillage treatments in the same localit...

Inverse optimization of parameters offers an economical means to infer soil hydraulic properties from in situ measurements of infiltration. We evaluated optimization strategies to inversely estimate soil hydraulic parameters using field measured tension disc infiltrometer data. We estimated the parameters n, , and Ks of the van Genuchten-Mualem (VGM) model, and a piecewise representation of con...

similar fractured rock formations elsewhere. One possible means for obtaining such estimates is the use of The search for a permanent storage facility for the geological distension infiltrometers. posal of high-level nuclear waste has motivated extensive research Tension infiltrometers have long been used in soil hyduring the past several decades to characterize and predict fluid flow into and ...

Abstract. The saturated hydraulic conductivity (Ksat) is a key soil property governing agricultural production. However, the influence of conversion from conventional tillage (CT) to conservation (CS; including no tillage, NT, and reduced RT) on Ksat soils not well understood still debated. In this study, we applied global meta-analysis method synthesize 227 paired observations for 69 published...

The vertical change in the number of macropores causes a variation relative macroporosity (wf) and effective aggregate width (dag) over soil profile. Both parameters are used HYDRUS to represent this variation, increasing making automated calibration challenging. working hypothesis is that we can improve an analytical estimation wf dag developed previous research by inverse with meta-model for ...

Abstract Infiltration stormwater control measures (SCMs) have the potential to contribute towards mitigating effects of urbanization on downstream receiving waters. SCMs are most often successful when in‐situ saturated hydraulic conductivity ( K sat ) is well characterized. In this paper numerical solutions Richards’ equation used quantify bias seven infiltration measurement methods, removing n...