Many studies report that, under some circumstances, amending soil with biochar can improve field capacity and plant-available water. However, little is known about the mechanisms that control these improvements, making it challenging to predict when biochar will improve soil water properties. To develop a conceptual model explaining biochar's effects on soil hydrologic processes, we conducted a...

application of superabsorbent material is one of the new methods for moisture storage in the soil. this research was performed in the khajeh research station on the basis of randomized complete block design with three replications in the plots with dimension of 4×5 meter for investigate the effect of different amounts of pumice on water retention capacity in the soil, growth and of spring saffl...

As part of a larger, collaborative study, we conducted field experiments to investigate how rainfall signals propagate through an unsaturated soil profile, leading to a rapid pore pressure response and slope instability. We sprinkler-irrigated an entire, unchanneled headwater basin in the steep, humid Oregon Coast Range, and we drove the system to quasi steady state as indicated by tensiometers...

The current paper aims to analyze the influence of installation procedures when it comes accordance Soil Water Retention Curve and field monitoring data. method comprises testing three different procedures: with driving rod into soil; application mud inside auger hole; a hardened steel gauge. Further, is evaluated variation Bulk density on volumetric water content values by using Proctor double...

[1] Application of time domain reflectometry (TDR) in soil hydrology often involves the conversion of TDR-measured dielectric permittivity to water content using universal calibration equations (empirical or physically based). Deviations of soil-specific calibrations from the universal calibrations have been noted and are usually attributed to peculiar composition of soil constituents, such as ...

The application of additives (e.g., wheat straw (WS) or rapeseed-oil residue (RR)) to soils is a common agronomic practice, used for improving soil water retention. Through a laboratory investigation, this study examined the effects of RR and WS on infiltration, evaporation, water distribution, and water retention. The results indicated that the migration rate of the wetting front, as well as t...

Arbuscular mycorrhizal fungi (AMF) proliferate in soil pores, on the surface of soil particles and affect soil structure. Although modifications in substrate moisture retention depend on structure and could influence plant water extraction, mycorrhizal impacts on water retention and hydraulic conductivity were rarely quantified. Hence, we asked whether inoculation with AMF affects substrate wat...

This investigation was to evaluate the applicability and prediction accuracy of pedotransfer function (PTF) estimate water retention curves Ap horizon soils for five soil series which cannot be directly used cultivate upland crops other than rice because their high salinity. Soil (SWRCs) were obtained from 150 undisturbed samples collected horizons textures grouped into sandy loam with contents...

This paper investigates the effect of soil moisture evaporation rate on water retention curve (SWRC) clays obtained using high-capacity tensiometer (HCT) technique and following continuous drying (dynamic) method. SWRC measurements, with without control, were carried out reconstituted London clay specimens 12 performance-improved HCTs recently developed at University Warwick. Furthermore, HCTs'...