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  2. Drainage system (agriculture) - Wikipedia

    en.wikipedia.org/wiki/Drainage_system_(agriculture)

    Parameters of horizontal drainage Parameters of vertical drainage. The subsurface field drainage systems consist of horizontal or slightly sloping channels made in the soil; they can be open ditches, trenches, filled with brushwood and a soil cap, filled with stones and a soil cap, buried pipe drains, tile drains, or mole drains, but they can ...

  3. Drainage - Wikipedia

    en.wikipedia.org/wiki/Drainage

    Subsurface drains, on the other hand, are designed to manage water that seeps into the soil beneath the planting surface. French drains, which are gravel-filled trenches with perforated pipes at the bottom, are the most common type of subsurface drain. Trench drains, which are similar but shallower and wider, are also used in some situations. [4]

  4. Tile drainage - Wikipedia

    en.wikipedia.org/wiki/Tile_drainage

    Surface drainage: Facilitated by ditches and by maintaining natural channels to allow water to move downward by the force of gravity. Subsurface drainage: Built by burying pipes underground to remove excess water from the soil profile. Subsurface drainage is widely used by farmers. It has many advantages: [5]

  5. Well drainage - Wikipedia

    en.wikipedia.org/wiki/Well_drainage

    Subsurface (groundwater) drainage for water table and soil salinity in agricultural land can be done by horizontal and vertical drainage systems. Horizontal drainage systems are drainage systems using open ditches or buried pipe drains. Vertical drainage systems are drainage systems using pumped wells, either open dug wells or tube wells.

  6. Watertable control - Wikipedia

    en.wikipedia.org/wiki/Watertable_control

    The design of subsurface drainage systems in terms layout, depth and spacing of the drains is often done using subsurface drainage equations with parameters like drain depth, depth of the water table, soil depth, hydraulic conductivity of the soil and drain discharge. The drain discharge is found from an agricultural water balance.

  7. Septic drain field - Wikipedia

    en.wikipedia.org/wiki/Septic_drain_field

    Septic tank and septic drain field. Septic drain fields, also called leach fields or leach drains, are subsurface wastewater disposal facilities used to remove contaminants and impurities from the liquid that emerges after anaerobic digestion in a septic tank. Organic materials in the liquid are catabolized by a microbial ecosystem.

  8. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    A drainage equation is an equation describing the relation between depth and spacing of parallel subsurface drains, depth of the watertable, depth and hydraulic conductivity of the soils. It is used in drainage design. Parameters in Hooghoudt's drainage equation. A well known steady-state drainage

  9. Subsurface dyke - Wikipedia

    en.wikipedia.org/wiki/Subsurface_dyke

    A subsurface dyke has many advantages. It does not require additional surface reservoir, there is no loss of agricultural land, there is minimum evaporation loss since the storage is subsurface, there is no siltation and loss of reservoir capacity, the cost of maintenance is negligible, and it is relatively environment-friendly. [citation needed]

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