noun
windbreak forest; shelterbelt
A forest or belt of trees planted to reduce wind speed and protect crops, buildings, or soil.
海岸沿いの防風林が、強い潮風から畑を守っている。
The windbreak forest along the coast protects the fields from strong salty winds.
防砂林 is specifically for preventing sand drift, while 防風林 is for wind protection in general.
Compound of 防風 (wind protection) and 林 (forest).