Land drainage

Land drainage

Land drainage may refer to:

* surface drainage of the land related to:
** geomorphological pattern of natural drains, streams, rivers, etc. see drainage system (geomorphology)
** surface runoff of excess rainfall from the land, see surface runoff
** land forming or land shaping to enhance the drainage from the soil surface in agricultural land. This can be in the form of open channels, culverts and other specialist drainage features.
* subsurface (groundwater) drainage related to
** horizontal drainage by pipes and ditches: see drainage, tile drainage, or watertable control
** vertical drainage by wells, see well drainage or watertable control


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