Can you stop desertification with a wall?

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Offline Make it Lady

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Can you stop desertification with a wall?
« on: 02/05/2010 20:26:30 »
I heard that building a wall across the desert could stop the desrt from getting bigger. Is this true?
Give a man a fire and he is warm for a day, set a man on fire and he is warm for the rest of his life.

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Offline litespeed

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Can you stop desertification with a wall?
« Reply #1 on: 05/05/2010 19:57:42 »
No, it is not true.

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Offline Geezer

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Can you stop desertification with a wall?
« Reply #2 on: 06/05/2010 07:08:29 »
No, it is not true.

Well, I guess there can be no doubt about it then, although I understand you can slow things down a bit by careful planting.
There ain'ta no sanity clause, and there ain'ta no centrifugal force Šther.

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Offline Make it Lady

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Can you stop desertification with a wall?
« Reply #3 on: 09/05/2010 18:20:04 »
I read in Wired magazine that they were planning some sort of wall in the Sahara but couldn't see how it would work. Can't find the article now.
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Offline iva

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Can you stop desertification with a wall?
« Reply #4 on: 09/05/2010 19:55:11 »
It was a green wall, a wall of trees planted  from Senegal to another city, which was meant to help against sandstorms and improve the soil. There was something on it at that annual Copenhagen convention a few years ago. I don't know if it ever happened.

There was also an article in New scientist a few years back , probably on that same region, where this researcher revisited an area that was becoming desert, he put it down to modern farming methods, so he told them to stop clearing the land and let the natural vegetation sprout, which they did, whilst planting their crops amongst this, and the land flourished.

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Offline Make it Lady

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Can you stop desertification with a wall?
« Reply #5 on: 09/05/2010 20:26:19 »
No this was an actual wall
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Offline Geezer

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Can you stop desertification with a wall?
« Reply #6 on: 09/05/2010 22:55:58 »
No this was an actual wall

I've heard that

    "Where there's a wall, there's a way."
There ain'ta no sanity clause, and there ain'ta no centrifugal force Šther.

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Offline Make it Lady

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Can you stop desertification with a wall?
« Reply #7 on: 10/05/2010 22:35:31 »

http://www.magnuslarsson.com/architecture/dune.asp
I'm not sure if this is the actual article I read but they use bacteria to solidify the sand and make dune structures to make shelter.

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Offline myriam

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Can you stop desertification with a wall?
« Reply #8 on: 13/05/2010 13:46:20 »
hello there

your question makes me thinking really 

no answer yet

but thank you
live with faith, love and ambition

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Offline norcalclimber

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Can you stop desertification with a wall?
« Reply #9 on: 18/05/2010 01:06:50 »
I read somewhere awhile back(can't find it now for the life of me) that China is attempting to use weather modification to "hold back" the desert?  If it works,  I guess you could say they would be using a wall of green to stop desertification.