Organic amendments often represent a source of trace metals (TMs) in soils, which may partly leach into the groundwater. The objectives of this study were (1) to validate Hydrus-2D for modeling the transport of Zn and Cu in an Alfisol amended with pig slurry (PS) by comparing numerical simulations and experimental field data, and (2) to model the next 50 years of TM movements under scenarios of...

Daily Evapo-Transpiration (ET) was spatialized over a Mediterranean vineyard watershed by using ASTER data along with the S-SEBI model. Validation over seven contrasted sites was performed using an original procedure that allowed easier multi-site monitoring without being much expensive. It made use of neutron probe data for calibrating the HYDRUS-1D model that simulates vadoze zone water trans...

[1] Soil water dynamics and drainage are key abiotic factors controlling losses of atmospherically deposited N in Southern California. In this paper soil N leaching and trace gaseous emissions simulated by the DAYCENT biogeochemical model using its original semi‐dynamic water flow module were compared to that coupled with a finite element transient water flow module (HYDRUS), for two mixed coni...

[1] Disconnected stream-aquifer systems are becoming increasingly common because of lowering groundwater tables. This work focuses on the pathways and rates of infiltration and seepage as streams transition from fully connected to disconnected conditions. HYDRUS-2D simulations show for a connected stream, water infiltrates vertically then moves laterally below the top of the preflooding capilla...

Nitrate leaching through soil layers to groundwater may cause significant degradation of natural resources. The aims this study were: (i) estimate hydraulic properties (SHPs) the similar type with same management on various locations; (ii) determine annual water dynamics; and (iii) impact subsoil horizon nitrate leaching. final goal was compare influence different SHPs layering dynamics conduct...

as irrigation system installation is expensive and time consuming, it would be better to have an estimate of the water content provided by the system in the active root zone before designing an irrigation system. in this study, hydrus-2d performance was assessed under a tape irrigating in-situ with a heavy textured and relatively heterogeneous soil in rasht region. three different flows i.e. 2....