Coupling of a nitrate production model with HYDRUS to predict nitrate leaching

Matteau, Jean-Pascal; Gallichand, Jacques; Létourneau, Guillaume; Khiari, Lotfi; Gasser, Marc‐Olivier; Michaud, A.

doi:10.1016/j.agwat.2018.10.013

Cited by 17 publications

(5 citation statements)

References 27 publications

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“…The HYDRUS software packages continue to be an extensively used model for simulating processes in the vadose zone (Alves de Oliveira et al, 2019;Celestino Ladu & Zhang, 2011;Grecco et al, 2019;Matteau et al, 2019;Pang et al, 2000;Patle et al, 2017;Šimůnek & van Genuchten, 2008;Yang et al, 2019). More recently developed HYDRUS 2D/3D extends the simulation abilities of HYDRUS 2D to two-and three-dimensional flow domains, dual porosity systems and transport of viruses, colloids, and bacteria (Simunek et al, 2006).…”

Section: Modeling Of Vadose Zone Processes In the Unsaturated Zonementioning

confidence: 99%

Simulating contaminant transport in unsaturated and saturated groundwater zones

Sarma

Singh

2021

Water Environment Research

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The demand for clean and adequate water is rising rapidly with increasing population. This growing demand for water necessitates the measurement of the quantity and quality of water. Simulation modeling has become increasingly popular in the last two decades largely because of their predictive ability. This paper reviews the approaches for simulation modeling in groundwater resources management, focusing on models that have been used to simulate contaminant transport through the aquifer system. Recent research papers that have integrated the models for unsaturated and saturated zones have also been studied and described. Integrated models require assessment of the complex interactions between the groundwater zones and the movement of water and solute through them. Due to this, integrated models provide a more accurate modeling approach than models that have been independently developed for saturated and unsaturated zones. Application of such models is encouraged at the regional level to arrive at the best groundwater management decisions. © 2021 Water Environment Federation • Practitioner points• In the past few decades, modeling of contaminant transport in groundwater systems has seen tremendous applications. • A number of models exist that independently simulate flow and solute transport in unsaturated and saturated zones. • Recently, focus has been given on developing advanced coupled modeling approaches that require less inputs and run times.

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Section: Modeling Of Vadose Zone Processes In the Unsaturated Zonementioning

confidence: 99%

Simulating contaminant transport in unsaturated and saturated groundwater zones

Sarma

Singh

2021

Water Environment Research

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“…HYDRUS is applicable for the prediction of multiple soil-related processes which can be used for various purposes such as optimization of irrigation systems [58,59], estimations of the influence of plants on the amount of water in soil, modeling of groundwater oscillations [60], simulations of the transport of various substances, e.g., salts, nitrates, metals, pesticides [61], as well as to determine the impact of land use and environmental change on soil processes [62].…”

Section: Numerical Modeling Using Hydrus 2d/3d: Initial and Boundary Conditionsmentioning

confidence: 99%

Determination of Soil Hydraulic Parameters and Evaluation of Water Dynamics and Nitrate Leaching in the Unsaturated Layered Zone: A Modeling Case Study in Central Croatia

et al. 2021

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Nitrate leaching through soil layers to groundwater may cause significant degradation of natural resources. The aims of this study were: (i) to estimate soil hydraulic properties (SHPs) of the similar soil type with same management on various locations; (ii) to determine annual water dynamics; and (iii) to estimate the impact of subsoil horizon properties on nitrate leaching. The final goal was to compare the influence of different SHPs and layering on water dynamics and nitrate leaching. The study was conducted in central Croatia (Zagreb), at four locations on Calcaric Phaeozem, Calcaric Regosol, and Calcaric Fluvic Phaeozem soil types. Soil hydraulic parameters were estimated using the HYPROP system and HYPROP-FIT software. Water dynamics and nitrate leaching were evaluated using HYDRUS 2D/3D during a period of 365 days. The amount of water in the soil under saturated conditions varied from 0.422 to 0.535 cm3 cm–3 while the hydraulic conductivity varied from 3 cm day−1 to 990.9 cm day−1. Even though all locations have the same land use and climatic conditions with similar physical properties, hydraulic parameters varied substantially. The amount and velocity of transported nitrate (HYDRUS 2D/3D) were affected by reduced hydraulic conductivity of the subsoil as nitrates are primarily transported via advective flux. Despite the large differences in SHPs of the topsoil layers, the deeper soil layers, having similar SHPs, imposed a buffering effect preventing faster nitrate downward transport. This contributed to a very similar distribution of nitrates through the soil profile at the end of simulation period. This case study indicated the importance of carefully selecting relevant parameters in multilayered soil systems when evaluating groundwater pollution risk.

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“…Various techniques have been used to estimate NO 3 − –N loss in the vadose zone (Garmdareh et al, 2018; Yuan, Ruark, & Bland, 2017). However, the majority of studies primarily focus on crop production (Phogat et al, 2020), water and N management (Juntakut et al, 2019; Karandish & Šimůnek, 2018; Li et al, 2015) and N leaching risk, among others (Matteau et al, 2019). Hence, there is still a lack of knowledge regarding the patterns of N transport and simulations in the vadose zone (Gai et al, 2019; Šimůnek, van Genuchten, & Sejna, 2016).…”

Section: Introductionmentioning

confidence: 99%

The parametric uncertainty estimation of water and nitrogen transport simulation in a paddy field experiment using HYDRUS‐1D

Bian

Nie

et al. 2023

Irrigation and Drainage

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The HYDRUS model is an efficient technical means to study the process of complex nitrogen (N) transport in farmland. Nonetheless, spatial variability in soil water and N parameters has been observed at the field scale, leading to uncertainties in the HYDRUS model. In this study, the HYDRUS‐1D model was corrected and verified by the measured data. Generalized likelihood uncertainty estimation (GLUE) was used to estimate the uncertainty and sensitivity of the model parameters. The differences in simulated and measured data were expressed in terms of root mean square error, normalized root mean square error and coefficient of determination, and the model calibration and verification indicated that the result was reliable. The soil saturated water content, dispersion and sorption coefficient were well identified, with values ranging from 0.42 to 0.45 cm3/cm3, 0.26 to 0.29 cm and 0.141 to 0.158 L/mg, respectively. The denitrification rate and saturated hydraulic conductivity greatly influenced the uncertainty in the model results. Considering the uncertainty of the parameters, the predicted leaching of N accumulation from 0 to 100 cm depth ranged from 9.5 to 12.7 kg/ha. The HYDRUS‐1D model can simulate water and N transport in paddy fields. The prediction interval can be narrowed by considering the uncertainty of the model parameters.

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Coupling of a nitrate production model with HYDRUS to predict nitrate leaching

Cited by 17 publications

References 27 publications

Simulating contaminant transport in unsaturated and saturated groundwater zones

Simulating contaminant transport in unsaturated and saturated groundwater zones

Determination of Soil Hydraulic Parameters and Evaluation of Water Dynamics and Nitrate Leaching in the Unsaturated Layered Zone: A Modeling Case Study in Central Croatia

The parametric uncertainty estimation of water and nitrogen transport simulation in a paddy field experiment using HYDRUS‐1D

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