The importance as a windbreak is readily appreciated, but perhaps other factors are of more importance. Crop yields, for example, have been increased tremendously by protection offered by a nearby stand of trees. This is both from holding winter snow for use in summer, and reducing the evaporation of moisture in summer by winds. Selection of species for shelterbelts should be done on an individual basis to match soils, terrain, rainfall and other considerations. Also, the length and width of the belt may vary, but certain aspects can be of much greater benefit to wildlife than others.
Cedars are valuable for winter cover, for example, and bushy plants that provide food are desirable.
Ten rows of different tree species and shrubs, with undergrowth allowed to establish in some, can become excellent habitat. When crops are planted adjacent, wildlife finds life much easier. But, a real advantage is in saving moisture, and this benefit should not be overlooked. Deep-growing tap roots will not sap moisture from adjacent crops as much as shallow, spreading tree roots, such as cottonwood, so selection is important. And, retention of winter moisture more than makes up for summer's use, so yields are increased.