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Simulation model of the water balance of a cropped soil swatre

Simulation model of the water balance of a cropped soil swatre

Journal of Hydrology 63(3-4): 271-286

A transient 1-dimensional finite-difference model for the unsaturated zone with water uptake by roots is presented. A number of boundary conditions is given for the top and the bottom of the system. At the top, 24-h data on rainfall, potential soil evaporation and potential transpiration are needed. When the soil system remains unsaturated, 1 of 3 bottom boundary conditions can be used: pressure head, zero flux or free drainage. When the lower part of the system remains saturated, one can either give the groundwater level or the flux through the bottom of the system as input. In the latter case the groundwater level is computed.

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Accession: 006418350

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DOI: 10.1016/0022-1694(83)90045-8

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