The demand for safe and healthy food is rapidly increasing. The world population is growing and is projected to reach 9.8 billion in 2050. How do we prepare for this and how are we going to be able to feed all these people? It is clear that the food production mainly has to come from improvements in agricultural water management on existing agricultural lands.

Global climate change raises the pressure on supply and demand for water. Changing temperatures and long-term variation in annual precipitation amounts and regional distribution patterns require more ways to control water levels. In addition to the changing climate, cropping patterns are diversifying and field irrigation methods are changing. In light of all these changes in water demand, supply and use, the role of (subsurface) drainage has changed from a single-purpose measure for controlling waterlogging and/or salinity to an essential element of integrated water management under multiple land use scenarios.