WINDBREAK
A windbreak or shelter belt 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.
A further use for a shelter belt is to screen
a farm from a main road or motorway. This improves the farm landscape by
reducing the visual incursion of the motorway, mitigating noise from the traffic and
providing a safe barrier between farm animals and the road.
The term "windbreak" is also used
to describe an article of clothing worn to prevent wind chill. Americans tend
to use the term "windbreaker" whereas
Europeans favor the term "windbreak".
Fences called "windbreaks" are also
used. Normally made from cotton, nylon, canvas,
and recycled sails, windbreaks tend to have three or more panels held in place
with poles that slide into pockets sewn into the panel. The poles are then
hammered into the ground and a windbreak is formed. Windbreaks or "wind
fences" are used to reduce wind speeds over erodible areas such as open
fields, industrial stockpiles, and dusty industrial operations. As erosion is
proportional to wind speed cubed a reduction of wind speed of 1/2 (for example)
will reduce erosion by over 80%.
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