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Effect Of Multiple Shelterbelts
Contrary to common belief, having a number of shelterbelts
blocking the wind does not actually result in a greater reduction
in wind speeds. Because the first shelterbelt causes increased
turbulence, the second and subsequent belts are usually less
effective than the first.
Reference: Nageli, W. (1964), 'On the
most favourable shelterbelt spacing', Scottish Forestry Vol.
18, pp 4-15.
Additional shelterbelts do limit wind speed recovery and can
provide high quality continuous shelter over a large area
by pushing the wind up and over the paddock. This may be important
for providing protection to high-value horticultural crops
or for the provision of lambing shelter.
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