Ecohydrological processes are often evaluated by studying the fate of stable water isotopes. However, isotopic fractionation during evaporation is ignored or simplified in current models, resulting simulation errors that may be propagated into practical applications isotope tracing. In this study, we adapted and tested HYDRUS-1D model, a numerical model widely used to simulate variably-saturate...

Potassium (K) is a critical nutrient for crops, as it major constituent in fertilizer formulations. With increasing concentrations of K agricultural soil, necessary to understand its movement and retention the soil. Sub-surface modeling an alternative method overcome exhausting uneconomical methods study determine actual concentration HYDRUS-1D considered effective finite-element model which su...

Two-year field dissipation studies were conducted in three soil types in Minnesota to examine the processes affecting the dissipation of the herbicide isoxaflutole and its phytotoxic diketonitrile metabolite (DKN) under relatively cool, wet soil conditions. Plots of cuphea were treated with isoxaflutole and potassium bromide, a nonsorbed, nondegraded tracer. Replicate soil cores were collected ...

Soil heterogeneities can impact hillslope hydropedological processes (e.g., portioning between infiltration and runoff), creating a need for in-depth knowledge of governing water dynamics redistribution. The presented study was conducted at the SUPREHILL Critical Zone Observatory (CZO) (hillslope vineyard) in 2021. A combination field investigation (soil sampling monitoring campaign) numerical ...