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  • From: Robyn Francis <erda@nor.com.au>
  • To: <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] how trees make rain
  • Date: Thu, 21 Aug 2008 08:12:19 +1000

Hi Jenny
You'll find your answers in the chapter on Tress in the designers manual -
recommend you read the whole chapter thoroughly a few times so you
thoroughly understand the processes at work so you can explain them to
others...
Robyn


On 21/08/08 3:21 AM, "permaculture-request@lists.ibiblio.org"
<permaculture-request@lists.ibiblio.org> wrote:
>
>
> Today's Topics:
>
> 1. How do trees make rain? (Jennifer Nazak)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 20 Aug 2008 09:38:59 -0700 (PDT)
> From: Jennifer Nazak <jnazak@yahoo.com>
> Subject: [permaculture] How do trees make rain?
> To: permaculture@lists.ibiblio.org
> Message-ID: <23482.36741.qm@web65410.mail.ac4.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
>
> Hi All,
>
> Here in central Texas, some land-owners are being paid
> $350 per acre to clear cedar trees from their land,
> the reasons being that the trees "suck up water" and
> "aren't native." Furthermore, I've heard that the
> felled trees are being BURNED, rather than being used
> to create berms or harvested as wood, mulch, sawdust
> for compost-toilet cover matter, etc.
>
> I believe that a permaculture perspective would be
> useful here, and have been casting my memory back to
> the various PC courses I've taken. We all know that
> trees put moisture into the air via transpiration;
> I've read that 60% of inland rainfall is believed to
> be generated by trees.
>
> What I'm trying to recall is, what are some of the
> other ways in which trees can cause rain? I seem to
> remember hearing, from Scott Pittman and other
> esteemed permaculture sensei, that trees release some
> substance that seeds the clouds, but can't find
> mention of it in my written materials. And do grasses
> and other plants release a similar substance?
>
> Any insights on the value of trees in generating
> rainfall would be helpful to us in approaching public
> officials about this policy of clearing cedars from a
> drought-ridden land.
>
> cheers,
>
> jenny
>
> * * * * * * *
>
> Permaculture Design Course in Austin - 10 selected weekend days Sept 27-Nov
> 22
> Other classes and events throughout the year
>
> Austin Permaculture Guild
> 512-619-5363 / austinperm@permie.us
> www.permie.us
>
>
>
>
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> End of permaculture Digest, Vol 67, Issue 19
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  • Re: [permaculture] how trees make rain, Robyn Francis, 08/20/2008

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