One way is that they grow trees, and other tall plants that they might find, around their plot of soil. This prevents low winds from reaching the land.
The farmers could plant more vegetation; like shrubbery or trees. But trees are going to be more effective if you have large areas that you want to protect.
There are several different methods including cover cropping, minimum tillage, no-tillage, contour plowing, and planting of fibrous root crops such as grasses.