HYDRUS Projects – Root Uptake
- Project Group: Roots
- Description: Examples demonstrating the use of the new root water and solute uptake term (which includes both compensated and uncompensated root water and solute uptake, and both passive and active root solute uptake (from Simunek and Hopmans, 2009).
- Availability: Download HYDRUS projects now (1.5 MB)
- Note: These projects were created with an earlier version of Hydrus, and users using higher Hydrus versions need to convert them to their particular version.
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Project
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Description
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Root1
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Non-compensated root water uptake, groundwater lever at the 120-cm depth.
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Root2
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Compensated root water uptake (critical stress index=0.75), groundwater lever at the 120-cm depth.
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Root3
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Compensated root water uptake (critical stress index=0.5), groundwater lever at the 120-cm depth.
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Root4
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Non-compensated root water uptake, groundwater lever at the 120-cm depth, daily variations of transpiration generated by HYDRUS.
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Root1S1
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Same as Root1 with no solute uptake.
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Root1S2
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Same as Root1 with unlimited passive solute uptake.
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Root1S3
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Same as Root1 with unlimited passive and non-compensated active solute uptake.
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Root1S4
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Same as Root1 with unlimited passive and compensated (critical stress index=0.5) active solute uptake.
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Root1S5
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Same as Root1 with only non-compensated active solute uptake.
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Root1S6
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Same as Root1 with only compensated (critical stress index=0.5) active solute uptake.
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Root1
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Non-compensated root water uptake, groundwater lever at the 120-cm depth.
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Root2
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Compensated root water uptake (critical stress index=0.75), groundwater lever at the 120-cm depth.
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Roots1
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Non-Compensated root water uptake (critical stress index=1.0), Axisymetrical transport domain 100*100 cm with surface (drip) irrigation.
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Root4s
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Compensated root water uptake (critical stress index=0.4), Axisymetrical transport domain 100*100 cm with surface (drip) irrigation.
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DoubleVeg
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This example is unrelated to the Simunek and Hopmans (2008) paper. It demonstrates how HYDRUS can be used to simulate two types of vegetation simultaneously. Download a brief description and the executable module and test examples for version 1 and for version 2.
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References:
Šimůnek, J. and J. W. Hopmans, Modeling compensated root water and nutrient uptake, Ecological Modeling, doi:10.1016/j.ecolmodel.2008.11.004, 220(4), 505-521, 2008.
Check out the 1D problems from this manuscript.