World Overview of Conservation Approaches and Technologies
SWC Measures
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Definitions of SWC measures


Agronomic measures such as mixed cropping, contour cultivation, mulching, etc. which:

  • are usually associated with annual crops
  • are repeated routinely each season or in a rotational sequence
  • are of short duration and not permanent
  • do not lead to changes in slope profile
  • are normally independent of slope

Vegetative measures such as grass strips, hedge barriers, windbreaks, etc. which:

  • involve the use of perennial grasses, shrubs or trees
  • are of long duration
  • often lead to a change in slope profile
  • are often zoned on the contour or at right angles to wind direction
  • are often spaced according to slope

Structural measures such as terraces, banks, bunds, constructions, palisades, etc. which:

  • often lead to a change in slope profile
  • are of long duration or permanent
  • are carried out primarily to control runoff, wind velocity and erosion
  • often require substantial inputs of labour or money when first installed
  • are often zoned on the contour / against wind direction
  • are often spaced according to slope
  • involve major earth movements and / or construction with wood, stone, concrete, etc.

Management measures such as land use change, area closure, rotational grazing, etc. which:

  • involve a fundamental change in land use
  • involve no agronomic and structural measures
  • often result in improved vegetative cover
  • often reduce the intensity of use

Combinations in conditions where different measures are complementary and thus enhancing each other. Any combinations of the above measures are possible, eg:

  • structural: terrace with
  • vegetative: grass and trees with
  • agronomic: ridges