Numerical Simulation of Water Flow and Solute Transport to Tile Drains

Büyüktaş, Dursun; Wallender, W. W.

doi:10.1061/(asce)0733-9437(2002)128:1(49)

Cited by 6 publications

(4 citation statements)

References 17 publications

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“…Tile drains are commonly used in agriculture areas as an important component in water management for removing excess water when shallow groundwater levels or seasonally perched water tables enhance the risk of anoxic conditions for the crop roots (Branger et al, 2009;Buyuktas & Wallender, 2002;Filipović, Mallmann, et al, 2014;Mohanty et al, 1998). In several studies, tile-drainage systems provide useful information regarding the spatial variability of soil properties and imply macropore influence at the field scale, since they integrate the hydraulic response of an entire field under different hydrological conditions (Kladivko et al, 1991;Richard & Steenhuis, 1988).…”

Section: Introductionmentioning

confidence: 99%

Parameterization of two‐dimensional approaches in HYDRUS‐2D: Part 2. Solute transport at the field and column scale

Varvaris

Pittaki‐Chrysodonta

Børgesen

et al. 2021

Soil Science Soc of Amer J

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In this study, a tracer field experiment was conducted to study the temporal dynamics of bromide movement in a loamy tile-drained agricultural landscape. Moreover, tritium leaching experiments were performed on undisturbed soil columns from the same field. The HYDRUS-2D software package was used to model water and solute transport. Three water flow models developed in Part 1-a single-porosity approach with modified soil hydraulic functions (SP), a dual-porosity approach (DP), and a dual-permeability approach (DUP)-were used as a foundation for building solute transport models, of which the initial parameterization was based on a suggested hydrogeological tool from previous studies. The selected solute transport models were an SP, an SP with immobile water, a DP, a DUP, and a DUP with immobile water. The model predictions were compared against measurements of bromide concentrations in soil-water. The DP captured the degree of the initial peaks and predicted well the shape of the observed concentrations. However, DP presented low capability to match the timing of bromide concentration peaks. In contrast, the DUP with immobile water illustrated better predictive ability by introducing an additional pore region into the matrix domain. Validation of field-scale solute transport models was implemented using the data from the following leaching experiments. The already suggested parameterization concept was further evaluated for its capability to provide a sufficient initial representation of the internal pathways. The output from such hydrogeological studies shows that macropores and their interconnection with tile drains are key to understanding the water flow and solute transport processes in loamy structured soils.

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Section: Introductionmentioning

confidence: 99%

Parameterization of two‐dimensional approaches in HYDRUS‐2D: Part 2. Solute transport at the field and column scale

Varvaris

Pittaki‐Chrysodonta

Børgesen

et al. 2021

Soil Science Soc of Amer J

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“…In particular, the Vimoke and Taylor approach predicted hydraulic heads (at some distance from the drain) and flow rates with good accuracy. This approach has been implemented in the SWMS codes (2D, Simunek et al, 1999;and 3D, Simunek et al, 1995) and by Buyuktas and Wallender (2002) in their own finite elements code.…”

Section: Introductionmentioning

confidence: 99%

Field-scale modeling of subsurface tile-drained soils using an equivalent-medium approach

Carlier

Kao²,

Ginzburg³

2007

Journal of Hydrology

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“…Although there are models that include the ability to simulate the flow of water and nutrients through a tile system (e.g., Jaynes & Miller 1999;Buyuktas & Wallender 2002), none have yet been applied or tested under New Zealand conditions.…”

Section: Introductionmentioning

confidence: 99%

Predicting soil water, tile drainage, and runoff in a mole‐tile drained soil

Snow¹,

Houlbrooke²,

Huth³

2007

New Zealand Journal of Agricultural Research

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There has been considerable intensification of agriculture on mole-tile drained soils in New Zealand. Management techniques and tools are needed for predicting and understanding water and nutrient transport. While simple water balance models have been effective in estimating soil water deficit, such models cannot differentiate between the different water loss mechanisms. More complex water-transport models include the ability to predict the flow of water and nutrients through mole-tile drainage systems but none have yet been applied, or tested, under New Zealand conditions. Here we test such a model against existing data. The simulation model APSIM was used to estimate soil water extraction by pasture, slow drainage through the fragipan, mole-tile drainage, surface runoff, and evaporation from the soil surface of the Tokomaru silt loam. Soil hydraulic properties were derived from the literature. Comparison was made against A06045;

show abstract

Numerical Simulation of Water Flow and Solute Transport to Tile Drains

Cited by 6 publications

References 17 publications

Parameterization of two‐dimensional approaches in HYDRUS‐2D: Part 2. Solute transport at the field and column scale

Parameterization of two‐dimensional approaches in HYDRUS‐2D: Part 2. Solute transport at the field and column scale

Field-scale modeling of subsurface tile-drained soils using an equivalent-medium approach

Predicting soil water, tile drainage, and runoff in a mole‐tile drained soil

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