Factors affecting wind erosion
a) Moisture:
- Blow of wind reduce because of adhesion between soil particles and water.
- It also indirectly affects wind erosion by regulating growth and development of vegetation.
b) Soil properties:
- mechanical stability of soil clods and aggregates, stability of soil and bulk density and size of erodible soil fraction affect wind erosion.
c) Wind velocity:
- Wind speed of 25 km/hr is needed for initiation of soil movement.
d) Wind turbulence:
- Impact of wind- carried particles as they strike the soil can cause erosion.
e) Surface roughness:
- Rough soil surface is less prone to wind erosion.
f) Vegetation:
- Rows of vegetation and stubble mulch that run perpendicular to prevailing wind can reduce wind erosion.