Watertable control

Title :

Controlling the water table

Description/Definition :

Crop yield (Y) and depth of water table (X in dm)

Subsurface land drainage aims at controlling the water table in originally waterlogged land at a depth acceptable for the purpose for which the land is used. The depth of the water table with drainage is greater than without drainage.

In agricultural land drainage, the purpose of water table control is to establish a depth of the water table that does no longer interfere negatively with the necessary farm operations and crop yield yields (Figure, made with SegReg program, see segmented regression].
The development of agricultural drainage criteria is required to give the designer and manager of the drainage system a target to achieve in terms of maintenance of an optimum depth of th