Windbreak

n. barrier against the wind (e.g. a fence)

A windbreak or shelterbelt is a plantation usually made up of one or more rows of trees or shrubs planted in such a manner as to provide shelter from the wind and to protect soil from erosion. They are commonly planted around the edges of fields on farms. If designed properly, windbreaks around a home can reduce the cost of heating and cooling and save energy. Windbreaks are also planted to help keep snow from drifting onto roadways and even yards. Other benefits include providing habitat for wildlife and in some regions the trees are harvested for wood products.
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Noun
1. hedge or fence of trees designed to lessen the force of the wind and reduce erosion
(synonym) shelterbelt
(hypernym) hedge, hedgerow

A shelter, either natural (e.g., a line of trees or a thick hedge) or artificial (a screen), which breaks or interrupts the force of the wind. (DOI4)

A living barrier that usually includes several rows of trees, and perhaps shrubs, located upwind of a farm, field, feedlot or other area and intended to reduce wind velocities. Windbreaks, also called shelterbelts, can reduce wind erosion, conserve energy or moisture, control snow accumulations, and provide shelter for livestock or wildlife.