An Integrated Surface and Groundwater Flow Model for the Design and Operation of Drainage Systems
In The Netherlands dense channel systems are present for land drainage. In periods with a shortage of water these systems often serve to supply water for agricultural purposes as well. Because of the double function of these channels it is very important that they are maintained properly. Weed control, for instance, is necessary to prevent waterlogging or flooding in the case of high discharges. Maintenance costs are a heavy burden for the local water authorities. The frequency of maintenance activities is usually determined by a rule of thumb. This may result in too much maintenance. On the other hand the frequency of maintenance may be too small giving a greater danger for flood damage or insufficient water supply. The situation is even more complicated because water levels vary during the year. For a good water management the water level in winter is generally kept low to allow a quick drainage, whereas the level is raised in spring to conserve water for dry periods in summer or to make subsurface irrigation possible.
KeywordsRoot Zone Unsaturated Zone Groundwater Depth Groundwater Model Capillary Rise
Unable to display preview. Download preview PDF.
- Bakel, P.J.T. van (1986) Planning, Design and Operation of Surface Water Management Systems. A Case Study. Report 13. ICW, Wageningen, The Netherlands. 114 pp.Google Scholar
- Belmans, C., J.G. Wesseling and R.A. Feddes (1983) Simulation Model of the Water Balance of a Cropped Soil: SWATRE.Google Scholar
- J. Hydrol. 63, 3/4: 271–286. Techn. Bull. n.s. 21. ICW, Wageningen, The Netherlands.Google Scholar
- Chow, V.T. (1959) Open Channel Hydraulics. Mc Graw-Hill Book Co. Inc., New York, 680 pp.Google Scholar
- Techn. Bull. 106. ICW, Wageningen, The Netherlands.Google Scholar
- Kouwen, N., R.M. Li and D.B. Simons (1981) Flow Resistance in Vegetated Waterways. Trans.ASAE 24, 3: 684–690, 698.Google Scholar
- Querner, E.P. (1984) Program FEMSAT, Part 1. Calculation Method for Steady and Unsteady Groundwater Flow. Nota 1557. ICW, Wageningen, The Netherlands. 23 pp.Google Scholar
- Querner, E.P. and P.J.T. van Bakel (1984) Description of Second Level Water Quantity Model, Including Results. Nota 1586. ICW, Wageningen, The Netherlands. 67 pp.Google Scholar
- Querner, E.P. (1985) The Influence of Vegetation on the Discharge in Open Channels. Nota 1600. ICW, Wageningen, The Netherlands. 58 pp. (in Dutch).Google Scholar
- Querner, E.P. and R.A. Feddes (1985) Program SIMCROP - Calculation of Agricultural Production and Cost on a Regional Level. Nota 1666. ICW, Wageningen, The Netherlands. (in press).Google Scholar