Using earth to deflect wind

John Cropper j.cropper at trinidad.net
Thu Dec 13 22:14:11 EST 2001


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----- Original Message -----
From: <flickwright at ozemail.com.au>
To: "permaculture" <permaculture at franklin.oit.unc.edu>
Sent: Tuesday, December 11, 2001 23:14
Subject: Using earth to deflect wind


> Hi everyone, I tried a posting months ago, but it never appeared so will
try again.
>
> My partner and I are in the process of designing a house for a fairly flat
site on the Eyre Peninsula of South Australia that has a fair amount of wind
exposure. We are wondering whether anyone has experience or knowledge of
designing or using swales/mounds/earth around a house and garden for wind
protection/deflection. We are not looking at earth berming the house, but
protecting the zones 1- 3 as much as possible.
>
> OUr climate is semi-arid with only 500 mm of rainfall and a massive
evaporation rate due to hot summers (35 - 45 degrees Celcius) and most rain
falling Autumn - Spring (only one month rainfall exceeds evaporation). We
both have studied PDCs and note some references to mounding earth in the
wind sectors to create microclimates, but are curious to know of practical
examples.
>
> In the meantime we have direct seeded significant windbreaks of native,
fire retardant species (another major risk in our climate) but they will
take at least four years to begin to create and effect.
>
> cheers
> flick wright
>
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>
>
>
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