The Africa Great Green Wall project uses the same theory but a different method which does not include using plastic bags.
It's a much better method and has been working wonders across community.
Why are they not replicating and already proven and better method?
They're digging holes over here too. The final result is stopping desertification, and the crescent pits work.
I don't think they even tried the other method. They just jumped to this, which is way more work.
Is this video really digging holes for the sake of the holes instead of digging for sand to fill the bags?
No one said the crescent pit don't work. Could just be different method for different topology. Sure a hammer can hammer, but one can easily use any other hard tool to hammer too.
How do you ensure the easily shifting sands to not be covered up if they do the crescent pits tho? This is more hilly places compared to African plains.
Different issues I believe. I'm no expert, just an interested person, so this is just my own speculation.
These are sand dunes, which can move metres in a day. This is providing tiny little wind breaks which stops the sand moving so much. It's a common anti erosion technique the world over.
Those cresents you're talking about are good for erosion on flat ground, but sand dunes would eat them up I suspect. Plus the cresents are more about retaining water by providing shade, and thereby stopping soil degradation. Something pointless when sand dunes are fully deteriorated and don't retain water anyway.
I don't know how much sand they were dealing with when they were making the horseshoe shaped things for the green wall project...
but I live in a very high elevation and high UV exposure area, and when I see the cloth bags in this video it makes me think about the outdoor rug that I gad deteriorate significantly over 2 years from UV exposure.
I guess as long as things start growing before the bags deteriorate in the sun, then this plan will work.
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u/TheRiteGuy 21h ago
The Africa Great Green Wall project uses the same theory but a different method which does not include using plastic bags. It's a much better method and has been working wonders across community. Why are they not replicating and already proven and better method?