ABSTRACT
Wind erosion, or at least the dust and sand drifts associated with wind erosion, have presented a problem to mankind since biblical times. Wind erosion has been a factor in shaping the earth's surface. The role of wind erosion research has been to identify mechanics of the process, design effective control practices, and develop models that estimate soil erosion by wind. The minimum wind velocity at which the most unstable particles are dislodged is called the threshold velocity. If the wind velocity increases, additional unstable particles move and this process continues until soil particle movement is sustained without a further increase in velocity. The quantity of material being transported will increase as the wind velocity cubed. Crop residues standing in the field are six times as effective in controlling wind erosion than when the same quantity of material is flat on the soil surface.
