What are some ways to prevent wind erosion in a dry, sandy area

Preventing wind erosion in a dry, sandy area is feasible through any of the following land-use practices:

a. Tillage - creates soil roughness by making furrows and ridges that are perpendicular to the direction of the wind. 
b. Crop rotation - rotations of legumes followed by shrubs followed by trees then back to legumes work best.
c. Intercropping - is the most widely used particularly in countries with desert areas. One of the most popularly used is oasis agriculture that makes use of about 3 layers of vegetation. 

A) it will stay on the table