L. Warsta, M. Paasonen-Kivekäs, T. Karvonen, and A. Taskinen (Finland)
Modelling, clay field, preferential flow, tile drains
A three-dimensional, distributed process model was developed to simulate the flow patterns at a subsurface drained, clayey field. The overland flow was simulated with a sheet flow approach with kinematic wave approximation. A dual-permeability model was used to simulate the subsurface flow. The dynamic nature of clayey soil was taken into account with a simple soil shrinkage and swelling model. Data from a subsurface drained clayey field in southern Finland was used to develop and test the model.
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